Posts Tagged ‘Review’

« Older Entries
Newer Entries »

The Year in Review: 2009 in Shared Services & Outsourcing

Friday, October 15th, 2010

As a truly remarkable year draws to a close, it’s time once again to cast our thoughts back over the previous twelve months and ask: “What the heck was THAT all about. . . ?”
In accordance with an age-old (ok, year-old) tradition, SSON reached out earlier this month to network members, asking for their thoughts on what characterized 2009 in shared services and outsourcing. The result? SSON’s Year in Review special. Read on, enjoy, and see how far you agree with what our experts have to say about the last year. . .

Phil KingAssociate PartnerAtos Consulting
2009 was the year of challenge for shared services leaders, with short term pressures on cost control as part of organization-wide freezes restricting investments at the same time as demands from customers to do more for less. Large investments in e. g ERP upgrades were put on hold so a large number of small-scale initiatives have been carried out – such as shared services and process diagnostics, process improvement driven by techniques such as Lean, starting off scope expansion projects, and the assessment, design and implementation of “niche” solutions, particularly in areas such as automated AP invoice processing, improved collections processing, automated reconciliations, automating HR processes – projects which can give a payback of less than a year and add to the corporate bottom line as well as improve efficiency. The best leaders have delivered significant bottom-line benefit by techniques such as dynamic discounting leveraging the consistent, standardized and stable processes that an optimized shared service can deliver.
*
John SheridanSenior ManagerAlsbridge
Global recession is probably the lasting image of 2009 – with just about everyone looking like a rabbit that has just been caught in the headlights. The low seasonality of the Christmas period lasted for 3-4 months into Easter with the market waiting see who would twitch first and which way they would go. Outsourcing initiatives that were in development (or in-flight) were restructured and/or deferred; the drive for flexibility and innovation that was gaining momentum came to a crashing halt as cash became king once again as a primary tactical driver.  As if the global recession wasn’t bad enough, the year had started on a downer almost immediately with the Satyam scandal: the chairman of India’s fourth largest outsourcing service provider, Ramalinga Raju, resigned on 7 January 2009 after notifying board members and the Securities & Exchange Board of India (SEBI) that Satyam’s accounts had been falsified (cash on its books inflated by $1bn; $253m liability incurred on funds personally arranged by Ramalinga Raju; quarterly revenues for the period ending 30 September 2008 overstated by 28% and earnings overstated by $125m). This sparked a huge crisis of confidence and sent shockwaves around the outsourcing world placing major question-marks against India’s position as a premier destination for outsourcing IT services – plus the role of its auditors, PricewaterhouseCoopers, in the whole saga.  I think the year will also be remembered for its merger and acquisition activity, following in the footsteps of HP’s purchase of EDS in 2008, a trend that I can see continuing into 2010. Deals included:
Oracle stepping bravely into the ‘open-source’ systems market with its $7. 4bn acquisition of Sun Microsystems in April 2009 after Sun’s discussions with IBM broke down.
Tech Mahindra picking up the ashes of Satyam by taking a controlling interest in April 2009, initially operating them as an independent company under the name of Mahindra Satyam before bringing them under the group umbrella.
Dell’s $3. 9 billion acquisition of Perot Systems in September 2009 giving them a stronger position in the IT services market and deep government / healthcare experience.
Xerox launching into full blown BPO most recently with their acquisition of ACS (October 2009) helping them in their transformation from a document company into higher value end-to-end business processes.
… Oh yes … and then there was “Cloud” and “everything” as a service … with BPO and ITO becoming ever more intertwined. Watch this space …
*
Ravichandran VenkataramanMDANZ Operations & Technology Pvt. Ltd
The year that went by had some real challenges. . . :
specific industries like travel were really hit and anyone doing back office work for this had to look at other options;
as predicted at the beginning of the year, we saw a drop in profits making PE investors force companies to offshore/outsource more;
the volatality of the dollar was so high and across different currencies, that it got a lot of companies off guard. Of course, many banks made money;
many companies moved hard on productivity, salary cuts, no raises, lower bonuses, no promotions to higher level jobs, etc.
*
Phil SearleFounder & MDChazey Partners
This time last year we were in economic Armageddon!  Countries, governments, financial markets and enterprises were often  in near panic mode.   There was little visibility or confidence, all “discretionary” spend (however that was being defined) was stopped, and we didn’t know how deep and how desperate this recession was going to be.  This time this year many economies have returned to growth for the first time in 18 months (with one notable exception being the UK), in large part due to significant government stimulus packages.   Economists are now debating whether this is a “V”-shaped or a “W”-shaped recovery and whether we are really over the worst or might yet suffer a double dip.   Then there is the very critical longer term question of how to deal with the huge deficits that public finances have got into as many governments have borrowed to fund their economic stimulus packages.
So what does this all mean for governments and businesses and, specifically, shared services and BPO?  Some of the world’s most respected business leaders rightly tell us that a time of recession is a great opportunity to take stock, make important structural and strategic decisions and ready the business to come out stronger than ever.   Shared services and BPO can and has been a part of this.   Many organizations have looked to shared services and BPO to help drive out inefficiencies and cost, get control of operations, generate cash and closely manage working capital.   Improving service levels to the business have remained important but the “burning platform” has for many businesses been cost and cash.   The challenge has been how to “invest” at a time of restrictions on “discretionary” spend and availability of cash.   Time will tell whether short-term actions will reap longer-term pain or gain.   Any effective and sustainable move to leverage shared services and/or BPO across in-scope processes such as Finance, HR, IT and Procurement requires a robust approach with investment in people, processes, technology and a new service delivery framework.   Short-term moves to cut heads and costs through something called “shared services”, offshoring or outsourcing will likely fail – and quickly – if these are done as a “quick fix” or simply “slash and burn” type activities.
On the flip side, organizations that may not have previously thought much about or really leveraged existing shared services operations or BPO relationships have turned to them and reaped the benefits.   Sometimes, there is nothing quite like a “burning platform” to get things done!  But long-term sustainable success will not be achieved in just 12 to 18 months.
Offshoring has been an interesting and often quite political and indeed emotional topic in 2009.   While offshoring can bring business benefits (often linked directly to cost) it also potentially means moving jobs overseas.   What has definitely happened is that there have been far fewer expats being sent overseas to help establish and operate offshore captive or outsources centres.
*
Zachary MiskoGlobal DirectorKellyOCG – RPO
Obviously over the past 12 months, the economic situation has changed dramatically. Last year, in our global RPO survey report, which is conducted annually, over 70% of respondents cited recruitment difficulties. This year, the global figure has dropped to just 54%. Interestingly, however, at the time of the survey, that figure remained at 67% for European respondents. When this recession passes, as it will, HR departments around the world will have downsized significantly. HR departments which have been downsized in the lean times will be overwhelmed with the complexities of identifying and onboarding the quality and quantity of talent they need to fuel their company’s renewed growth. Many companies are using their employees within HR and recruitment in the midst of hiring freezes and layoffs, to engage in more social networking and passive recruitment. Unlike the economic trials after 2001 when companies had no interest in Recruitment Process Outsourcing (RPO) or developing recruitment skills, this time they want to retain and expand their knowledge of the current job marketplace during the slowdown. As well, today they want a more flexible cost structure, so they are looking for RPO providers who can become their long-term partners. Companies are transitioning knowledge now so the RPO provider will be prepared when the economy turns around and they are ready to hire. This provides much needed flexibility and scalability to companies.
Respondents to our 2009 global RPO survey cite a variety of challenges that are slowing the hiring process. Fifty four percent said the most common challenge was quality of hires. Following that, challenges include time to hire (37 percent), cost to hire (28 percent), hiring manager satisfaction (27 percent), performance monitoring (21 percent), and quality of recruiters (18 percent).
*
Mark JuddHR SSO DirectorHR Shared ServicesRolls-Royce plc
If the management of an HR shared service organization has ever been considered a challenge in the past, the last twelve months have reset the bar. In both the public and private sector the concept of a cost-saving business case is no longer enough to justify investment and commitment to transformation. The need to work within the boundaries of affordability, in an environment where cash is scarce and closely protected, has meant that we have to make more careful choices on how we progress our service offerings. This impacts on the design of our solutions and the pace at which they can be implemented.
It has also created a paradox in that there is an urgency to deliver much more to preserve and improve the business cost base but caution in moving delivery away from the corporate control where the benefits are not immediately obvious. There is also less capital investment available to make it happen.
It is likely this is a temporary hiatus as need surpasses caution. Certainly we have had a lot of interest in visiting the Rolls-Royce HR Shared Service Centre from private and public sector organisations alike. I think the next two years will see an unprecedented level of activity in HR transformation projects. Much of this will probably be in the public sector where the choice of back office infrastructure is weighed up against the ability to field front line staff. There is no real choice between the two and there are only so many options to reduce costs. Politically unpalatable collaborations between public sector entities could now be seen as very desirable. This may see the emergence of some of the very largest HR transformations.
This could be set to be a very exciting couple of years.
*
Traoloch CollinsCEOwww. serviceframe. com
2009 has been a tough year for most organizations – characterised by a steep downturn but also great uncertainty.   Uncertainty in business is deeply unsettling.   Uncertainty in sourcing relationships is no different.   We saw a noticeable trend in the second half of 2009 to a renewed focus on structured management of risk and performance in both outsourcing and shared services.   This approach was driven by clients and service providers – both recognising that effective risk and performance management keeps costs down and service consistent.   Management of performance has always been a key focus for organisations but as the importance of cost control is reinforced this is becoming more formal and rigorous.  
*
Deborah KopsCMOWNS Global Services
2009 has been the “year of the survivor. “. Supporting this theme are a few notable trends:
Companies now recognize that business process outsourcing is an appropriate operating model for both good times and bad.   Companies, both veteran and new industry entrants, are now embracing outsourcing with more alacrity. This year we saw historical outsourcing ‘laggards”—new industry entrants such as CPG, retail, logistics and media and entertainment start on outsourcing journeys side-by-side with more experienced industries such as financial services, who ramped up their initiatives in response to the worst economic conditions in 60 years.
The second trend is the increasing globalization of service providers in response to more global programs of the buyer sector. During 2009, the provider community aggressively expanded their footprints to serve  the needs of their clients.
The third discernable trend is the pronounced waning of the era of captive centers. Many clients revisited their captive shared service center strategy with the recognition that third party providers can deliver the same or better levels of service at lower cost with less administrative hassle.
*
Vipin SuriMDShared Services International Inc.
In 2009, several companies had their business cases prepared but deferred their decision to implement shared services until next year.   The primary reasons for this deferral were competing priorities e. g. other mission critical initiatives during the challenging economic times, ERP system implementation and lack of organizational capacity to handle incremental changes.  
Another major question which required most of the debate in 2009 was: Do we create Shared Services first and then outsource or should we just outsource?  Of course, there are two schools of thoughts – the outsourcers recommend one-step outsourcing because of quicker savings and single organizational disruption but the conventional wisdom suggests – two-step outsourcing i. e. get your house in order first by creating shared services and then consider outsourcing.   The objective is not to leave more money on the table for the outsourcers.   The pendulum seems to be swinging in favor of one-step outsourcing.
The reporting structures within the SSCs were also reviewed with a trend towards moving to functional reporting lines rather than continuing in a multi-function environment. In this case, various functionally based shared services are co-located in the same center and common management practices e. g. customer surveys, SLAs, pricing strategy etc. are being leveraged by creating a Service Management Office (SMO).
In addition, executives spent considerable amount of time discussing Lean Six Sigma, Value Stream Mapping & Business Process Improvement
*
Jon Hansen
When I was recently contacted by SSON’s Jamie Liddell to provide my thoughts on “The Year in Review ” for 2009, as well as “The Year Ahead” in 2010, relating to shared services and outsourcing I must admit that there was no shortage of ideas and reference material.
Over the past 12 months I have had the opportunity and privilege of interviewing some of the industry’s top thought leaders on the subject of shared services and outsourcing including Sources for Horses and former AMR Research analyst Phil Fersht and IACCM’s CEO Tim Cummins.
The Fersht interview, which originally aired on June 24th, was interesting on many levels, not the least of which was the fact that according to industry studies two-thirds of all outsourcing programs fail to achieve the expected results.   While there were a number of reasons that had been cited and discussed for this dismal track record during the 45-minute interview, one of the most telling revelations came from the fact that even though organizations were looking to increase their activity in this area, few companies were actually going beyond the “rob Peter to pay Paul” mindset that led to the failures in the first place.   Specifically, becoming disenchanted with outsourcing services through domestic providers, organizations repatriated development internally through the engagement of overseas providers from countries such as India.
The problem of course is that the change in geography did little to address the origins of the problems with domestically driven initiatives, which is the client’s abdication of responsibility for managing the process.   In other words, success with outsourcing will continue to be elusive if companies insist upon assuming a spectator role in their own business process improvement programs.
Recognizing these challenges and their overall contribution to the poor results, companies are now starting to turn toward solution providers that can facilitate without intimidating the management process, which was reflected in the PI Window on Business “Emerging Giants: Future Titans of the SaaS World series. ”
In particular, the August 20th segment in which I interviewed Blueprint’s Senior VP and CMO Matt Morgan.   Morgan discussed at length the emergence of “visual requirement definition” as well as the myriad of other tools that are now available to organizations who want to gain access to needed resources without losing control of the development process.
While organizations assuming greater responsibility and control for their outsourcing projects in 2010 will continue to be the trend, the question as to level of outsourcing activities beyond the domestic landscape remains to be seen.
On September 30th I welcomed both Canada’s Trade Minister Stockwell Day and an international guest panel of experts that included IACCM’s Tim Cummins to discuss the impact of the Buy American policy on both the domestic and international economic landscape.   During the 90-minute special, Tim made the prediction that outsourcing activities would begin to shift away from India to South Africa where, as he put it, there is a nascent outsourcing sector that will make it the new preferred destination for companies looking to outsourcing for improved process performance and bottom line savings.
Whether this transformation will shift into high gear in 2010 or the year after is yet to be determined. However it is safe to say that 2009 was the starting point, and that 2010 will be the year of transition.
This latter point of course demonstrates how outsourcing activity extends beyond the sector itself to encompass and impact global economies.
As I had discussed on the PI Window on Business Show, and both the Procurement Insights and PI Window on Business Blogs, the Clark and Fourastie “three-sector hypothesis of industry” (which is now four with the advent of high tech and R&D industries) as it relates to the development of a wealthy nation’s economy, demonstrates outsourcing’s economic impact .   (Note: the now “four industry sectors” of the hypothesis through which a wealthy nation must progress to maintain its economic position includes the extraction of raw materials (Primary), manufacturing (Secondary), services (Tertiary) and later knowledge-based (Quaternary).   Outsourcing encompasses elements from both the third and fourth sectors. )
Referring once again to India, the advent of that country’s rise to prominence as a preferred outsourcing destination for American firms, each of which have committed to investing $1 billion into its economy, has significantly impacted its standard of living.   In fact studies show that India has seen double-digit wage growth for much of the 2000s.
The critical points to consider regarding the India case reference is that outsourcing is a key cornerstone of the Tertiary and Quaternary sectors that are essential to a nation’s economic  viability and ongoing strength.   How this plays out during 2010 and the ensuing years will likely have a significant influence on the global economy as a whole,  especially if predictions such as the one by IACCM’s Cummins forecasted shift from India to South Africa materialize.
Given the above, it is safe to say that as we move further beyond 2009, we will one day come to see it as a pivotal year of change that like 2010 will represent the bridge between past failures and future success on multiple levels of what is a complex industry.
_________________________________________________________________________
This article was first published on the Shared Services & Outsourcing Network (SSON) – Read it here: http://www. ssonetwork. com/topic_detail. aspx?id=6650&ekfrm=6&utm_source=ssonetwork. com&utm_medium=SMO&utm_campaign=DIRECTORIES&mac=SSON_External_Listing_2055
About The Shared Services & Outsourcing Network (SSON)
SSON is the largest and most established community of shared services and outsourcing professionals, with over 25,000 members.
SSON provides the roof under which key industry experts and organizations share their experience, knowledge and tools, and practitioner peers connect with other all over the world, both face to face and online.
SSON focuses on developing its members through providing training, tools, and networking opportunities. SSON staff works from international offices in New York, London, Singapore, Sydney, Berlin and Dubai to research current trends and developments in shared services.
More information visit the Shared Services & Outsourcing Network (SSON) website. Stay up to date with SSON’s latest twitter posts at twitter. com/ssonetwork, connect with global practitioners, providers and advisors on the Shared Services & Outsourcing Network (SSON) LinkedIn group and Sign up to receive SSON’s weekly updates today

Tags: , , , , ,
Posted in CMOS Definition | No Comments »

Nokia N79 Mobile Phone Review – A You Will Love to Love

Saturday, September 18th, 2010

Nokia manufactures and sells both types diff? Ent t? S? Mobile phones – whether the practice is only for a set of good hands, they s? Basis? ? Be? little pr? s the best. The Nokia N79 is one of those t? S? Phones you just love? love. He joined the ranks of other Nokia N-mod? Them on the market? – Its en? Res and sisters are the N78, N82, N85 and N96. Without a doubt – the Nokia N79 is? Be one of the best t? S? Mobile phones on the market? – 5 m sport? Megapixel with Carl Zeiss optics, CMOS sensor, a Tessar lens with 20x zoom and num? America. Then too, there is autofocus and a tr? S two main capture sc useful? Do. If this is not enough to tip the balance, try adding the option of smart Xpress On covers, allowing the choice of th? Me according to your mood, environment or the dress code for the Journ? e. The Nokia N79 is a t? L? Phone quad-band, food? by the system? my S60 Symbian operating software. Ask? anyone in the know and will comment on Symbian -? is good. “It is reassuring when it comes to making? decision below? e on reliability? operating software only. r? buckets live? s the handset? are GSM850, GSM 900, GSM 1800, GSM 1900 and WCDMA. This allows use worldwide (convenient for business travelers), but the acc ? sd? hang on to? finish the service used? s. Functionality? WLAN Hotspot (Wi-Fi support) allows acc? Der? Internet, supported by the internal HTML, XHTML and WML browser, and use of data transfer printers? es / is possible using a USB port or Bluetooth wireless. As a businessman using the Nokia N79 is? Be known for? Be Approved? It?. It provides a means complete text / SMS, as well as a wireless email service that supports filtering and accessories for SMTP, IMAP and POP servers. The m? Mechanism of input? Text e pr? Dictive slapped on the keyboard and still very compact? S use an exp? Experience agr? Reliable, and if you do not use a keyboard, or can not, The N79 works with text-to-Speech Message Reader. When it comes to help you with your personal organization of the N79 features a calendar, an r? Directory that supports images, Calculator, Flight Mode, discrete vibration? You warning device to signal incoming calls and messages and m? me to watch popular formats of documents. The conf? Differences t? L? Phonics are possible, with a maximum of six participants, including VoIP on the Internet, call for an option and push to talk. r calls? regular partners are easy by the loudspeaker and handsfree character? compositional characteristics rep? g? e. music formats supported include WMA, AAC, eAAC + and MP3. T? L? Phone has a? Equalizer int? Gr? for use with loudspeakers st? r? o 3D, FM radio and RDS support. It supports? Also Internet radio. Games in Java format is int? Gr? S in t? S? Phone? delivery, and it is possible t? l? load other Java games? from the Internet. With m? Memory of 50 MB and 4 GB of m? MicroSD memory can be brought? Tense? 8GB the handset? offers the player a great time, 5. 5 hours of talk time and a day between 170 and 370 hours, according to meters? Method used? E (GSM vs. WLANs). The camera meters? Rite mention Supp? Commentary. Registration vid? O and streaming is possible with the reading format 3GP, MPEG4, H263 and H264 formats. The device includes a stabilizer for the vid? O the filming of? Lighting and character? Characteristics vid? O, including automotive and night settings? Very vid? Time o ‘? Lighting. This is a t?? S great phone, and a cr? Said on behalf of Nokia.

Tags: , , , ,
Posted in CMOS Input | No Comments »

Asus Maximus III Review Mother Gene

Thursday, August 26th, 2010

IntroductionBuying a motherboard these days is quite a difficult task because, in terms of performance, there is very little to choose between the top contenders. Brand loyalty is one way, but leaves the feeling that something good can be missed by lack of knowledge of different offers. The industry has had a difficult time and most have been forced into a “arms race” of adding more features to their boards stand out. A recent example is the tendency to place great amounts of copper on board with a performance gain little to show for it, but at a disproportionate cost. Why did they do? Just because people choose motherboards based on viewing data in a quantitative way. We believe that the much larger value for the customer can not be achieved through features (software and hardware) in the package that gives them tangible benefits. ASUS is a great example. Their strategy is to lead through innovation and not follow the herd. Readers will already be familiar with products like the Eee and other home entertainment products, they have developed. The ROG (Republic of Gamers) branded fast gaining popularity with extreme gaming and workshops and seminars overclocking held in many countries. The selection of prizes awarded at these events shows how close ASUS understand the needs and aspirations of their target audience. We were impressed from a time with the game based ASUS motherboards and I think it is now time to examine them with an emphasis on features and not a multitude of benchmarks comparing + 20 boards to make that happen less than 1% on the other. Today, the board in question is the Maximus III Gene, making Intel’s flagship product for 1156 i5 and i7 (8XX series) processors. FeaturesA Council brief summary of the main features include: Deleting save space – please visit www. ASUS. com for more detailsBoard LayoutThe box comes in a pretty package that highlights the ROG logo showing that it is an enthusiastic player and mother. He is really ready to Windows 7 and everything was detected correctly during our 64-bit Windows Setup Pro 7. Installation of additional drivers and utilities that come with the CD is still highly recommended though. The board X-Fi supports EAX 4 . 0 for HD advanced audio and comes with a filter to remove background noise while recording. We tested in both. 5 1 and 7. 1 channel modes without distortion and a good channel separation. There so many features that the front and back of the box are not sufficient and an additional component is used to develop further. It also adds to the gift box “effect and can make a nice gift for the holidays. All these features on a board that is not cluttered and mATX! As SLI / CrossFire capabilities, we can see that it is passively cooled with a radiator big bottom right. There is a conception of power to twelve participants consists of eight CPU phase, two central and two ATVs phase power memory phase. There are 7 SATA-2 ports and a header E-SATA port. The four DDR3 slots operate in dual-channel memory support up to 16 GB DDR3-2133 by the BIOS. The red button allows you to recover without erasing the BIOS if the settings are too extreme during overclocking. Adding an on / off switch allows testers or those not using a classical case. A legacy PCI slot is there for that so old RAID PCI controller, you can not bear to separate. RAID 0 and 1 is supported on SATA-2 ports and will pay up ‘that the SSD is widespread. connectors PS / 2 are the past and look only to the 8-channel audio is fully supported and configurable when the complete audio drivers are installed. The USB port on the side is actually the ROG connector and allows a notebook to monitor and configure the remote PC. In practice, this works well with our Eee PC 901 using the supplied cable. Firewire and e-SATA (there is another e-SATA Firewire connector on the other side of the Committee for cases that have these connectors on them) are included. Adding a clear CMOS button on the rear panel will please overclockers and record the voltage reaches to a jumper with a pair of long nose pliers while holding a flashlight between the teeth and to the manipulation of language…. Included in the box are the SATA cables with metal bars to make them easier to removing and keeping them in place against accidental removal – a long way from that first SATA cables are included with many motherboards today. ROG The cable is just a USB port (male to male) Lead . padding on the rear bumper is a good fit with the edge of the plate is thick and built making it easy to install and remove without bending. The SLI bridge is easy to install and the most notable thing is the Q-Connector for the son of case (hard drive, power switch, rest, etc.) so they can be installed there and all the connector taken as needed for access. This is the kind of time-saving feature which leaves people wondering why nobody thought of before. SetupRemoved Test to save space – Please refer to the html version of the article to detailsOverclockingSocket 1156 processors, like their brothers and sisters are socket 1366 known for their overclocking capabilities so we started with high hopes for our i7-870 on this forum using the many available options in the BIOS. The BIOS is too detailed for us to explore in this review, but we should read this YouTube video here and if your appetite is whetted for more information you can download the manual from ASUS support site. Our first objective was 3. 5 GHz, which was achieved without significant increase in the temperature (the water fountain sealed Corsair H50 processor is truly remarkable and completely silent). All the markers were performed without problems. Incredibly, the system posted and booted into Windows to 4GHz on stock voltage. The execution of Far Cry 2 item caused a deadlock and we even increased the CPU voltage to 1. 35V CPU before completing all the tests without any problem. Even so, 1. 35V is still on the low side compared to some extremes, we have seen with a simple cooling system. We conducted our tests at stock speeds but to allow readers to make comparisons on a fixed basis. ResultsWe test should explain why we selected certain tests and why we have repeated for 1, 2, 3 and 4 cores. People buy motherboards for different uses and if you’re a player who can do with 2 cores or Avid video editor that max 4-core processor that determines you pair with the board. We recommend still not skimp on the selection and purchase of a high-end motherboard, as a fully featured Gene Maximus III (high-end socket by 1156 standards – half the price of a socket Council 1366) provides maximum flexibility as we shall see. Benchmarks show which processor is best suited for particular uses. We compare the ASUS Maximus III Deluxe with ASUS Gene M4A79T. The advantage of DDR3-2000 compared to DDR3 -1600 and dual channel memory can be clearly seen. Synthetic benchmarks eliminate bottlenecks and to show the true potential of nuclei increases. Only users of the AMD platform will be able to replace their current processors with a 6-core “Bulldozer” next year. It is not intended for the 6-core Gulftown “(aka i9) processors that can fit into a socket 1156 motherbaord. similar situation with a call to very linear scale. The number of nuclei has no effect on memory bandwidth (fortunately there is no single core Athlons in the configuration AM3). The results are quite interesting and stabilization after 2 cores for i7-870 but more linear slow the AMD X4. The results are above average for the advice of these chipsets. Far Cry 2 is widely recognized as the game to any system to its knees and we deliberately tried to Higher settings for each resolution and anti aliasing 8x. cadences are perfectly playable at all resolutions (we do not have 30-inch ultra high resolutions). contrasting the FPS Far Cry 2 Tom Clancy’s HAWX, which is a cross between a flight simulator and air combat game and we achieved more than 60 frames per second in all resolutions. horror games are currently popular and Resident Evil 5 has a large calibration feature built in. The Board very well in this test. ConclusionWe’ve deliberately avoided getting bogged down with dozens of benchmarks comparing many motherboards as it is a component where the performance generally varies less than 1 % across the range. readers who want to see these types of benchmarks are pointed in the direction of AnandTech and similar sites. We have already explored in depth and be assured that the Maximus III Gene is in the top 3 in virtually all standard tests available. Instead we focus on the added features and bundled software that add unique value to each motherboard. ROG mothers never disappointed in terms of features and the Maximus III Gene is no exception despite its mATX form factor that puts pressure on available “real estate”. The choice of what appears to be to enable the board to be used for small form factor and easy to carry systems for players to use in LAN parties and gaming conventions Overclocking etc. used in the field of amateur requiring great skill and experience and tenacity with nerves of steel required and the constant threat of destruction of equipment adding the voltage on the hours it took to get a stable overclock. This is not the case, now that ASUS make it easy for everyone (and no longer can we convince women at celebrations in ourselves as PC overclockers ….) with STEPUP PC IROG connect MemPerfect and a host of utilities within Windows makes it easy to get professional results in a fraction of the time and with low risk or zero. When everything is taken into account, we believe that the ASUS Maximus III Gene is the best motherboard socket 1156 is now available and strongly to its target market price.

Tags: , , , ,
Posted in CMOS Layout | No Comments »

Specifications latest 3G phones Music with Price, review and full

Thursday, August 26th, 2010

The 3G technology is the latest in mobile communications. 3G stands for “third generation” – this makes analog cellular age group a machine and digital / PCS generation two. The 3G technology is intended for the mobile multimedia accurate – typically called smartphones – and features improved bandwidth and transmission rates to accommodate Web applications and telephone and audio files vidéo.1. Nokia 5630 XpressMusic smartphone Symbian. It is your connection to your closest friends and your favorite songs. Find new sounds huge online and enjoy your music on-the-go.Nokia 5630 Specifications: * 3. 2-megapixel full Focus (CIPF) camera with dual LED flash .* 2. pixel 2-inch TFT LCD (240 x 320) * Charging USB data transfer simultaneously, UPnP, Bluetooth 2. 0 + EDR and USB 2. 0 High-Speed .* 3. 5 mm AV jack. ] [Earphone jack * EDGE / GPRS, 3G (HSDPA) and WiFi N-Gage * game * FM Radio with RDS * 4 GB memory card included (expandable up to 16GB) .* Operating system: S60 3rd éditionSay and Play Feature: feature pioneered With Nokia voice command “Say and Play”, consumers can merely say the name of a favorite artist or song to automatically play. “It comes with a 4GB memory card which can store up to 3,000 pieces of music that can be updated to 16 GB.Également in Wi-Fi was constituée.PRIX: 11,999 INRTarif 4. 3 / 52. The Nokia N900 is a gadget of Internet and mobile smart phone, Nokia-based Maemo platform, which replaces the N810. The experience of rhythm and raw power of computers to high performance Nokia N900 mobile.Rien else even comes close .* 3. 5-inch widescreen display Touch * 800 x 480 pixel resolution * 3. 5mm AV connector * TV output (PAL / NTSC) with Nokia Video Connectivity Cable * Micro USB connector, High-Speed USB 2. 0 * Bluetooth v2. 1 support, including stereo headsets * 32 GB of internal storage * Store up to 7,000 MP3 songs or 40 hours of high quality video * Up to 16GB of additional storage with a microSD card External * Full QWERTY keyboard QWERTY keyboard * Touch screen * 2584 x 1938 pixels (VGA secondary camera) * CMOS, Carl Zeiss optics, Tessar lens 2. 8 / 5., 5. 0 megapixel

Tags: , , , , , ,
Posted in Analog CMOS | No Comments »

Review pocket HD camcorder Aiptek Digital Camcorder Complete range of 1080 In 2010

Saturday, August 14th, 2010

We are all looking for a cheap camcorder, but we want one of the best camcorders for our money, then what are the best cheap video cameras for 2010? Aiptek Action HD GVS 1080P High Definition Camcorder The Aiptek Pocket DV camcorder can not be so familiar to readers as saying Panasonic, Canon and Sony, but as compact pocket cams, it’s worth considering if you are looking for high-definition resolution . 2010 is the year of HD camcorder, and most buyers are demanding HD 1080 to match the resolution of their HDTVs. The range of Aiptek Pocket Digital Camcorder offers stunning resolution of 1080, and Aiptek Action HD GVS 1080P cheap video cameras to provide video enthusiasts with a color 3-inch LCD. Record at 30 frames per second in 1080p or 60 fps in 720p with advanced H. 264 of the technology, according to your project. Shoot pictures too, and get great shots 5MP. Despite being a cheap camcorder, camcorder Aiptek’s pocket digital has a good macro lens for high quality close-ups, and a 5x optical zoom with auto focus and a 4x digital zoom. Optical image stabilization is a key to find now and Aiptek have this in the form of a gyroscopic stabilization for superior stability, UN-game while recording video. Aiptek A-HD + 1080P High Definition Camcorder These great little cheap video cameras are very similar to the above camera, but only a 2. Screen 4 inches. They record directly from TV, DVD player or VCR and accept 32 GB SDHC memory cards for extended recording. Aiptek A-HD Pro 1080P High Definition Camcorder like the two above models, the Aiptek A-HD Pro 1080P 1080P high definition video recording at 30 frames per second in 1080p with the latest technology H. 264, but it has only 2. Display 4 inches, but gives a resolution of 8 MP still image. These three models of camcorders from Aiptek Cheap have CMOS Optical Sensor Technology, which is the way forward from the recording CCD image sensor optics, and in my opinion and are among the best camcorders to buy a digital camcorder pocket.

Tags: , , , , , , , ,
Posted in CMOS Definition | 1 Comment »

Review of Sony DSC-TX7 10. 2MP CMOS Digital Camera with 4x zoom with optical image stabilization and stable Shot 3. 5-inch touchscreen LCD

Tuesday, August 10th, 2010

If you are looking for a camera point-and-shoot that can take pictures, easy? The Sony DSC-TX7 10. 2MP digital CMOS with a 3. 5 “Touch Screen everything could be perfect for you! It features easy to see the options menu you can select or review by touching the screen. This elegant and trendy touch screen device from Sony comes in your choice of silver, red or blue and has many amazing features, read below to find out what the Sony DSC-TX7 10. 2-megapixel CMOS camera touch screen digital at offrir.Le Sony DSC-TX7 10. 2Mp CMOS point-and-shoot digital camera features a 3 large. 5 touch screen “for quick menu selection and viewing images easy. This camera also offers incredible TruBlack with the technology 921k pixels. The Sony DSC-TX7 10. 2MP CMOS camera is the best selling Sony Cyber-shot DSC-line and allows practices to view and share photos with an easy to use touch screen. The 3. 5 “Xtra Fine LCD touchscreen has a film coating Ultra AR minimizes glare and allows to easily view the screen even in bright light. The Sony Xtra Fine LCD touch screen allows you to focus, access the menu and scroll through the images by simply touching the screen. The Sony DSC-TX7 10. 2MP CMOS Digital Camera uses the esteemed Carl Zeiss Vario-Tessar ® 4x optical zoom bring you with brilliance, vivid close-up photos and the target well known is able to capture action scenes with astonishing speed and incredible clarity. The Close Focus feature on this captures high quality HD movies you can take pictures very targeted half “object. This amazing point-and-shoot digital camera from Sony also has a wide-angle corresponding to a 25mm lens allows wide-angle shots if you’re taking photos of a group or a scene cut large.photos Capture the breath and attractive with this camera dynamic point-click-shoot. The Sony DSC-TX7 10. 2MP CMOS camera captures every second at a staggering rate of fire of ten frames per second anti-blur feature and Twilight hand for stunning night shots with each shot, even without a tripod! When you use the Anti-Motion Blur feature of Sony DSC-TX7 10. 2MP CMOS camera snaps six pictures in a split second to produce each picture with explicit information and brilliant photo quality results that are superior to any other point-and-shoot camera market. DSC-TX7 10. 2MP CMOS digital camera to record remarkable, stunning, high quality movies with HD 1080i AVCHD recorder Movie.Le Sony Cyber-shot highlights feature allows accurate and precise picture, so you never miss a shot . This intelligent function takes pictures at an amazing speed of 10 frames per second for 10. 2 Mega Pixel resolution, if you get the picture was taken just when you clicked the shutter. Intelligent Auto Focus technology enables your Sony DSC-TX7 10. 2MP CMOS camera to focus instantaneously, in as little as 0. 3 seconds! Capture special moments has never been so easy to do! The Sony DSC-TX7 10. 2MP CMOS camera also features an Intelligent Auto Mode which makes taking spectacular pictures even easier! Scenic panoramas capture the beauty and magnificent with the Sony DSC-TX7 10. 2MP CMOS Digital Camera. The Sony DSC-TX7 10. Digital Camera 2-megapixel CMOS also has a Glance iSweep mode that lets you take panoramic pictures spectacular. Simply click the trigger once and the Sony DSC-TX7 10. Digital Camera 2-megapixel CMOS finish the job. For this, he repeated several images, taken in a split second and without bringing them together to form the panoramic image. The Sony DSC-TX7 10. Digital Camera 2-megapixel CMOS model is perfect crystal, clear panoramic pictures of animated faces or moving objects without blurring of. Here’s what you need to know when you buy the Sony DSC-TX7 10. 2MP CMOS camera. Those who bought this Sony DSC-TX7 10. 2MP CMOS Digital Camera at Amazon rate it five out of five stars. This incredible camera weighs only 1. 2 pounds and measures 2. 8 “x 5. 6″ x 6. 2. The advertised price for the Sony DSC-TX7 10. 2MP CMOS camera is listed at $ 399. 99. The Sony DSC-TX7 10. 2MP CMOS camera reads Memory Stick Duo, Memory Stick PRO Duo or Memory Stick PRO-HG Duo is sold separately. So you can buy a Memory Stick PRO-HG Duo HX 8 GB Flash Card Reader USB MSHX8G or 4GB Sony Memory Stick PRO Duo flash memory card MSMT4G when you buy a Sony TX7 DSC-10. 2MP CMOS camera. And the case of transport designed to fit Sony DSC-TX7 10. 2MP CMOS Digital Camera Sony LCS-CST General Purpose Soft Carrying Case for Cybershot Digital Cameras Slim and the current price of the carrying case is $ 13. 57.The Sony DSC-TX7 10. 2MP CMOS camera also has an amazing technology TransferJet. This innovative concept developed by Sony allows file transfer TransferJet between two compatible devices simply by touching them together. This new technology eliminates the aggravation of looking for a rope or cable or play with the methods of sharing files difficult. The Sony DSC-TX7 10. 2MP CMOS Digital Camera everything is easier! The remarkably stylish, Sony DSC-TX7 10. 2MP CMOS camera with a touch screen integrated into the film coating Ultra AR to visibly reduce glare for easy viewing in any lighting. This colorful Sony DSC-TX7 10. 2MP CMOS camera has been designed using a Carl Zeiss Vario-Tessar lens with 4x optical zoom for photos at a distance or a Close Focus feature that can be used for subjects who are ½ “away. The Sony DSC-TX7 10. 2-megapixel CMOS digital camera offers features designed to capture quality photos in all types of lighting such as the Twilight Hand vivid night photography. The Sony DSC-TX7 10. Camera 2-megapixel CMOS digital AF also intelligent, which offers instant focus that allows you to capture fleeting moments of action, such as your baby’s first steps or a baseball game of your son first. Never miss a moment by taking photos with easy to use Sony DSC-TX7 10. 2MP CMOS.

Tags: , , , , , , , , , , , , ,
Posted in CMOS Design | No Comments »

Operational review of different mechanisms of control stepper motor

Sunday, August 1st, 2010

This section covers all types of engines, from basic circuits needed to control a variable reluctance motor, the H-bridge circuit to control a permanent magnet motor pole. Each type of control circuit is illustrated with practical examples, but these examples are not intended as an exhaustive catalog of the control circuits commercially available, or the information contained herein is intended to replace the information found on the leaves manufacturer’s data components for the parties mentioned. This section covers only the control circuit of the most basic class for each engine. All these circuits assume that the power of the engine provides a control voltage does not exceed the rated motor voltage, which limits the performance of the engine. The next section, the control circuit current limited, practical circuits covers high performance training. controllers of variable reluctance motors typical reluctance stepper motors are variable variations on the contour of Figure 3. 3 Figure 1:. 1 In Figure 3. 1, boxes are used to represent the switches, a control unit, not shown, is responsible for providing control signals to open and close the switches at the right time to turn the motors. In many cases, the unit will control a computer or programmable interface controller, the software directly generating the outputs needed to control the switches, but in other cases, an additional control circuit is introduced, sometimes free! motor windings, solenoids and similar devices are all inductive loads. As such, the current through the motor windings can be switched on or off instantly without going through endless tension! When the switch controlling a motor winding is closed, allowing current to flow, the result of this is a slow rise in current. When the switch control of a motor winding is opened, the result is a voltage spike that can cause serious damage to the switch unless care is taken to appropriate care. There are two basic ways to cope with the peak voltage. The first is to bridge the motor winding with a diode, and the other is to bridge the motor winding with a capacitor. Figure 3. Figure 2 illustrates the two approaches: Figure 3. 2 The diode in Figure 3. 2 must be able to conduct electricity across the motor winding, but it did lead briefly each time the switch is off, as the current through the decays of liquidation. If diodes relatively slow, as the common family 1N400X are used with a switch quickly, it may be necessary to add a small capacitor in parallel with the diode. The capacitor in Figure 3. Poses two problems more complex design! When the switch is closed, the capacitor discharges through the ground, and the switch must be able to manage this short burst of discharge current. A resistor in series with the capacitor or in series with the power supply will limit the current. When the switch is opened, the stored energy in the motor winding will charge the capacitor to a voltage much higher than the supply voltage, and the switch must be able to tolerate this tension. To solve for the size of the capacitor, we equate the two formulas for the energy stored in a resonant circuit: P = C V2 / 2 P = I2 L / 2 where: P – stored energy in seconds or watt coulomb volt C – the capacity in farads V – voltage across capacitor L – inductance of the motor winding, in henrys I – current through the motor winding resolution for the minimum size of capacitor needed to prevent surges on the switch is easy enough: C> L I2 / (Vb – Vs) 2 Where: Vb – the breakdown voltage Vs of the switch – the power supply of variable reluctance motors have variable inductance which depends on the angle tree. Therefore, the design of the worst must be used to select the capacitor. In addition, the motor inductances are often poorly documented, if at all. The capacitor and the motor winding, in combination, form a resonant circuit. If the control system drives the motor at frequencies near the resonant frequency of this circuit, the motor current in the windings and, therefore, the torque exerted by the engine torque will be very different from the state equilibrium the nominal operating voltage! The resonant frequency is f = 1 / (2 (SC) 0. 5) Again, the frequency of electrical resonance for a variable reluctance motor depends on the angle tree! When a variable reluctance motor is used with interesting impulses near the resonance, the oscillating current in the motor winding leads to a magnetic field which tends to zero at twice the resonant frequency, which can significantly reduce the torque available! controllers unipolar permanent magnet and hybrid motors typical unipolar stepper motors are variations on the outline of Figure 3. 3: Figure 3. 3 in Figure 3. 3, as in Figure 3. 1, boxes are used to represent the switches, a control unit, not shown, is responsible for providing control signals to open and close the switches at the right time to turn the motors. The control unit is typically a computer or programmable interface controller, with the software directly generating the outputs needed to control the switches. As control circuit for variable reluctance motors, we must deal with the sudden inductive produced when each of these switches is turned off. Again, you can blow the inductive shunt using diodes, but now, four diodes are required, as shown in Figure 3. 4: Figure 3. The four diodes are needed because the motor’s two coils are not independent, there is a single center-tapped inductor with center tap at a fixed voltage. This acts as an auto! When one end of the motor winding is pulled down, the other end of fly, and vice versa. When a switch opens, the inductive kickback drive end of the motor winding to the positive supply, where it is clamped by the diode. The opposite end will fly down, and if it does not float to the voltage at the time, it will fall below the ground, reversing the voltage across the switch for this purpose. Some switches are immune to such reversals, but others may be seriously damaged. A capacitor can also be used to limit the voltage bounce, as shown in Figure 3. 5: Figure 3. 5 The rules for sizing the capacitor in Figure 3. 5 are the same as the rules for the dimensioning of the capacitor in Figure 3. 2, but the resonance effect is very different! With a permanent magnet motor, if the capacitor is driven at or near the resonant frequency, the couple will rise to as much as twice the torque at low speed! The resulting torque versus speed curve may be quite complex, as illustrated in Figure 3. 6: Figure 3. 6 Figure 3. Figure 6 shows a peak in the available torque to the frequency of electrical resonance, and a valley at the mechanical resonance frequency. If the frequency of electrical resonance is placed appropriately above what would be the threshold speed of the engine using a diode pilot basis, the effect may be a considerable increase of the effective cut-off speed. The mechanical resonance frequency depends on the couple, if the mechanical resonance frequency is anywhere near the electrical resonance, it will be moved by the electric resonance! In addition, the width of the mechanical resonance depends on local slope of torque versus speed curve, if the torque with speed, mechanical resonance will be crisp, while if the torque increases to a speed, will be broader or even split into several resonant frequencies. Practices unipolar and variable reluctance Drivers In circuits above, the details of necessary switches have been deliberately ignored. All the technology switching, toggle switches power MOSFET will work! Figure 3. 7 contains some suggestions for the implementation of each switch, with a motor winding and diode protection included for guidance: Figure 3. 7 Each of the switches in Figure 3. 7 is compatible with a TTL input. The 5-volt supply used for logic, including the 7407 open collector driver used in the figure should be well regulated. The engine power, typically between 5 and 24 volts, needs only minimal regulation. It should be noted that these power switching circuits are suitable for driving solenoids, DC motors and other inductive loads, and for driving stepper motors. Transistor SK3180 shown in Figure 3. 7 is a darlington power with a current gain over 1000, and the 10 milliamps passing through the resistance of 470 ohm bias is more than sufficient to allow the transistor to switch a few amps current in the windings. The buffer used to drive the 7407 Darlington can be replaced by a smart open-collector high voltage that can run at least 10 milliamperes. If the transistor fails, the driver high voltage open collector is used to protect the rest of the logic circuit of the motor. The IRC IRL540 shown in Figure 3. 7 is a transistor electric field effect. It can handle currents up to about 20 amps, and it goes down to 100 volts non-destructive, so the chip can absorb inductive spikes without protection diodes if it is attached to a heat sink big enough. This transistor has a very fast switching time, then protection diodes must be comparable or faster bypassed by small capacitors. This is especially important with the diodes used to protect the transistor against reverse bias! If the transistor fails, the zener diode and 100 ohm resistor protect TTL circuits. The resistance of 100 ohms also acts to slightly slow down the switching transistor. For applications in which each motor winding draws less than 500 milliamps, the family of tables ULN200x Darlington Allegro MicroSystems, also available as DS200x National Semiconductor and Motorola MC1413 Table Darlington lead several motor windings or other charges directly from inductive logic inputs. Figure 3. Figure 8 shows the pinout of the chip ULN2003 widely available, a Darlington transistor array 7 with TTL compatible inputs: Figure 3. 8 The base resistance on each Darlington transistor corresponds to the standard bipolar TTL outputs. NPN Darlington Each is wired with its emitter connected to pin 8, designed as a grounding prong, each transistor in the package is protected by two diodes, a short-circuit the emitter to the collector, protection against reverse polarity to through the transistor, and connecting the collector to pin 9, if pin 9 is connected to the motor power supply positive, the diode to protect the transistor against inductive spikes. The ULN2803 chip is essentially the same as the ULN2003 chip described above, except that it is in a 18-pin package, and contains 8 Darlingtons, allowing a chip to be used to drive a pair of common unipolar permanent magnet or variable reluctance motors. For motors drawing less than 600 milliamps per winding, the pilot quad UDN2547B authority made by Allegro Microsystems will manage all four windings of stepper motors unipolar common. For motors drawing less than 300 milliamps per winding, Texas Instruments SN7541, 7542 and 7543 dual power drivers are a good choice, both options include some logic to the pilot power. Motors bipolar H-Bridges and activities are more complex permanent magnet bipolar stepper motors because they have no center taps of their windings. Therefore, to reverse the direction of the field produced by a motor winding, we need to reverse the current in the coil. We could use a solid double pole switch electromechanical To do this, the electronic equivalent of such a change is called an H-bridge and is described in Figure 3. 9 As with unipolar control circuits mentioned above, the switches used in the H-bridge must be protected against voltage spikes caused by switching off a motor winding. This is usually done with diodes, as shown in Figure 3. 9. It should be noted that H-bridges are not only the control of bipolar stepper motors, but also for the control of DC motors, solenoids, push-pull (those divers with permanent magnet) and many other applications. With 4 switches, the basic H-bridge has 16 possible operating modes, including seven short-circuiting the power! The following operating modes are interesting mode of delivery, switches A and D closed. Reverse mode, switch B and C are closed. These are the usual modes of operation, allowing current to flow from the supply through the motor windings and beyond the earth. Figure 3. 10 illustrates the preliminary mode: Figure 3. 10 decay mode or fast mode freewheeling, open all switches. Any current flowing in the motor windings will work against the full supply voltage plus two diode drops, so current decay rapidly. This mode provides dynamic braking effect is little or no motor rotor, so that the rotor side freely if all motor windings are energized in this mode. Figure 3. 11 illustrates the current flow immediately after the passage of the attacker runs a fast decay mode. Figure 3. 11 modes decay slowly or dynamic braking mode. In these modes, the current can flow through the motor winding with minimal resistance. Therefore, if current flows in a coil of the motor when one of these modes is entered, the current will slowly decay, and if the motor rotor rotates, it induces a current which will act as a brake on the rotor . Figure 3. 12 illustrates one of many useful slow decay modes, D with the switch closed if the motor winding has recently been in fashion forward, the state of the switch B may be open or closed: Figure 3. Most of the 12 H-bridges are designed so that the logic necessary to avoid a short circuit is included at a very low level in the design. Figure 3. 13 illustrates what is probably the best arrangement: Figure 3. 13 Here, the following operating modes are available: XY decay mode ABCD 00 0000 1001 01 Fast forward 10 11 0101 0110 Reverse slow decay The advantage of this arrangement is that all the relevant modes are retained, and they are encoded with a minimum number of bits, it is important when using a microcontroller or a computer system to drive the H-bridge because many of these systems have limited the number of bits available for parallel output. Sadly, few chip H-bridge integrated on the market of such a system of simplified control. Practice Bipolar Drive Circuits There are a number of H-bridge driver integrated market, but it is always useful to consider the implementations of discrete components to understand how an H-bridge Antonio Raposo (RDA @ Cybill. INESC. Pt) suggested the H-bridge circuit in Figure 3. 14; Figure 3. 14 The X and Y to the inputs of this circuit can be driven by open collector TTL outputs as in the control circuit unipolar Darlington basis of Figure 3. 7. The motor winding will be energized if exactly one of X and Y inputs is high and one of them is low. If both are low, both transistors will drop off. If both are high, both transistors of pull-up will be off. Consequently, this simple circuit is the engine braking mode dynamics in both the 11 and 00 states, and does not offer a freewheeling mode. The circuit in Figure 3. 14 consists of two identical halves, each of which can be properly described as a push-pull driver. The half life of H-bridge is sometimes applied to these circuits! It is also interesting to note that half H-bridge circuit is quite similar to the output control circuit used in TTL logic. In fact, the TTL line driver tri-state actors such as the 74LS244 74LS125A and can be used as a half-H bridge for small loads, as shown in Figure 3. 15: Figure 3. 15 This circuit is effective for driving motors with a maximum at about 50 ohms per winding voltages up to about 4. 5 volts with a supply of 5 volts. Each buffer three states in the LS244 can run about twice today and you can source and internal resistance of buffer is sufficient, when the supply current to be divided equally between the current drivers that are executed in parallel. This device allows all relevant States obtained by the driver in Figure 3. 13, but these states are not coded as efficiently: XYE Fashion – 1000 fast decay slow disintegration advance 100,010,110 reverse slow decay The second dynamic braking mode, XYE = 110, gives a slightly lower than the first braking due to the fact that the LS244 drivers can fall more power than they can source. The microprocessor (formerly Telcom Semiconductor) TC4467 Quad CMOS driver is another example of a general purpose driver that can be used as four independent H Half-bridges. Unlike the old drivers, the data sheet for this driver even suggested using it for motor control applications with supply voltages up to 18 volts and 250 milliamps per winding engine. One problem with the intensification of chips available on the market of motor control is that many of them have relatively short life of the contract. For example, Seagate Series IPxMxx chip dual H-bridge (by IP1M10 IP3M12) were very well thought out, but unfortunately it appears that Seagate does this when they used stepper motors for positioning in the minds of readers Seagate disk. The Toshiba TA7279 dual H-bridge would be another choice of another great engines of less than 1 amp, but again he seems to have been made for internal use. SGS-Thompson (and others) L293 dual H-bridge is a direct competitor for the chips above, but unlike them it does not include protection diodes. The L293D chip, introduced later, is pin-compatible and includes these diodes. If the previous L293 is used, each motor winding must be resolved through a bridge rectifier (1N4001 equivalent). The use of LEDs allows a series resistor to be placed in the recirculation current to accelerate the decomposition of the current in a motor winding when turned off, which may be desirable in certain applications. The family L293 offers an excellent choice for driving small bipolar stepper development of one ampere per motor winding up to 36 volts. Figure 3. 16 shows the pinout common L293B L293D and chips: Figure 3. 16 This chip can be considered independent 4-H Half bridges, has allowed two or two-H bridges complete. This is a power DIP package with pins 4, 5, 12 and 13 for conducting heat from the PC card or an external heat sink. SGS-Thompson (and others) L298 dual H-bridge is quite similar to the above, but is able to handle up to 2-A per channel and is packaged as a component of power, as with the LS244, the is sure the two bridges over M-298 Packaged in a 4-Amp H-bridge (the data sheet for this chip provides specific advice on how to do). A warning is appropriate for the 298, the chip switches very fast, fast enough that the current protection diodes (equivalent 1N400X) does not work. Instead, use a diode as the BYV27. The National Semiconductor LMD18200 H-bridge is another good example, which can handle up to 3 amps and has full protection diodes. Although integrated H-bridges are not available for very high currents or very high voltages, there are many on the market designed components to simplify construction of bridges from H-discrete switches. For example, International Rectifier sells a line of half H-bridge drivers, two of these chips over four MOSFET switching transistor is sufficient to construct an H-bridge The IR2101, IR2102 IR2103 and are based half H-bridge drivers. Each chip has two digital inputs to directly control the two switching transistors on a leg of an H-bridge The IR2104 and IR2111 same logic side output switches to control a H-bridge, but they also understand the logic input side, in some applications, may reduce the need for external logic. In particular, the 2104 includes an enable input, while in April 2104 more chips switching transistor 8 can replace L293 without requiring additional logic. The data sheet of the chip (formerly Telcom Semiconductor) TC4467 Quad CMOS family of drivers includes information on how to use the drivers of this family to lead the Power MOSFET H-bridges running up 15 volts. A number of chip makers are complex H-bridge circuits that include current limit, it is the subject of the next section. It is also interesting to note that there are a number of 3-phase bridge drivers on the market, suitable for driving the Y or triangle configured three-phase permanent magnet steppers. Few of these engines are available, and these chips have been developed with steppers in mind. However, the Toshiba TA7288P, the GL7438, the TA8400 and TA8405 are own creations, and two such chips, with one of six half-bridges ignored, will properly monitor a 5-winding 10 steps per motor revolution.

Tags: , , , , , ,
Posted in CMOS Buffer | 1 Comment »

The history of microprocessors: A Historical Review

Tuesday, July 27th, 2010

The biggest improvement in the history of the computer could be the development of the first microprocessor. This little chip enables a staggering amount of processing power must be packed in a very small space. The space is one of the main factors limiting effective assembly of a computer at a reasonable price. By being able to pack more processing power in a smaller area, the force of the modern computer is able to expand exponentially through advanced chip development. The first microprocessor chip was invented by Intel in November 1971. This little chip has been crucial for the development of new ones. integrated circuit technology had opened the door for advanced computing that was only limited by the amount of chips that could muster. This chip, the 4004 is the essential step in developing the management pack all of the “computer brain” in a game. This small microprocessor contained all the power of the CPU while providing for the basic memory of the computer and control methods for incoming and outgoing data. This progress has been simply amazing when you consider that the company was a small start by two engineers. This chip was actually the development of an assignment of the contract rather normal for Intel. They received their first jobs to design twelve different computer chips for Busicom, a small Japanese company. They wanted designs for chips that provide the functionality to scan the keyboard, controlling the display on the monitor and printer and just about anything else that their brand of calculator for hope. There was just one big problem they had to overcome. They needed money, but face an interesting problem. They lacked the manpower to actually design twelve chips pure in time. Thus, engineers have found a way to build a chip that was capable of doing all the simple functions. Busicom liked the idea and decided to fund the project. Time passed and a new chip that has more power than one of the old computers has been developed. Ironically, they decided to buy the design Busicom, which subsequently went bankrupt, leaving them full control of the new technological breakthrough in electronic components. The sky is the limit from this point. The basic idea of technology has been applied repeatedly to give us electronics capable of amazing power and capacity. The calculator is now on average more processing power than was necessary to plan the first lunar missions. The decline of this powerful technology has worked beautifully to support the development of many other electronic parts to make life a little easier for everyone. In just the time about 40 years, we have advanced computers that are almost able to reproduce true human intelligence. These advances in the treatment of micro improved all our lives so that we do not even know. The power of a computer is now literally at your fingertips.

Tags: , , ,
Posted in Microprocessor | No Comments »

A Third Party Ambit Energy Review ? Can Ambit Live Up To The Hype?

Friday, July 23rd, 2010

If you read this review, chances are you looking for information on Ambit Energy. In this brief but detailed review, I’m going to Ambit is also a company, their service, their compensation and, more importantly, what it will take for you to truly thrive in a society such scope. If you are seriously thinking about joining Ambit, or you are an existing representative who is dead serious about some type of success with your business Ambit, I recommend you read this review complet.Ambit Energy is a marketing company network energy markets through a network of independent representatives. Their goal is to become the “energy supplier finest and most respected in the country.” The company was started in 2006 by CEO Jere Thompson Jr. and Chris Chambless CMO. Since the beginning, Ambit has been increased quite Fast making a million dollars in revenue in its first year, $ 30 million in its second year and $ 196 million in its third year.The team now has extensive experience in both the traditional business and the network marketing arena. In addition, they have a platform of patented and billing customers, which is a good indication that their infrastructure is ready for growth in the long terme.Il is important to note that ‘selling point of Ambit Energy is the energy deregulation, which means that the energy monopolies are being dismantled and businesses can now compete for customers. Back in the 90s, telecommunications was deregulated and many companies (both traditional and network marketing companies) have been developed and many people who capitalized on deregulation have become rich. Although there is no guarantee that the same thing will happen with the energy, if history repeats itself, many people can get rich by being in the right place at the right moment.En respect their service to the energy going, genius of it is everybody already uses and if you help someone move to Ambit, you are not changing their buying habits. In addition, there is no cost to switch to the customer. Furthermore, in addition to saving a few dollars their energy bill, customers receive incentives for switching as monthly travel and points récompense.Il is important to note that energy is an industry worth 474 billion dollars in the U.S. alone, so if Are you interested in starting a business in a thriving industry, Ambit can be for you.This leads us to their business opportunity. You can join Ambit for only around $ 429 with a monthly fee of $ 25 site. You can earn money two ways. The first way is to advance an immediate income. Depending on your rank in society, you can earn $ 100 to $ 240 when the representative of your company and rejoined are qualified in their first 30 days. The second way is the monthly residual income you can build to attract customers who continue to pay their monthly bills. Assuming you can still sponsor new representatives, making them qualified in their first 30 days and teach your team to do the same thing, you can potentially earn a significant income for your business Ambit.En ending, Ambit is definitely a stable company with a solid opportunity. However, it is sufficient to join Ambit will not automatically be your success. All Ambit offers an opportunity. Ultimately, your success will depend on your ability to generate an endless stream of tracks, which will result in your ability to sponsor 10-20 reps per month. Can Ambit to get by sponsoring one or two people per month? It is possible but unlikely. By sponsoring 10-20 reps per month, your success will be inevitable. My suggestion is to use a self branded marketing tourism that will develop the marketing skills to sponsor the number of people you need to win.

Tags: , , , , , ,
Posted in CMOS Save | No Comments »

Canon Rebel DSLR MP T2i 18 Review

Wednesday, June 23rd, 2010

If you’re in the market for a great camera that will not break the bank and is a Canon Rebel camera T2i you should take a look at. This model is equipped with excellent features that were absent in previous models as a system of measurement above, features enhanced video, and others. In addition, the Canon Rebel T2i retains the fine features of its predecessors, so that the camera successfully unifies the best features of existing cameras with advanced technology. Canon has equipped the 18-megapixel CMOS Rebel surprisingly, this powerful sensor provides a larger number of pixels found on older models like the Canon Rebel XS, XSi or T1i. The max resolution of Canon Rebel T2i is an incredible 5184 x 3456. This means that you incredible clarity and gradation images. You get a big high definition still and video capture will blow you away. The video T2i can capture up to thirty frames per second with an image quality of 1080. The camera is capable of capturing audio and if the user wishes they can connect an external microphone into the socket to improve the audio capture. Provides longer ISO settings as previous Canon cameras, you also get the video mode, red-eye reduction features, a range of flash modes, functions, white balance, the range of shutter speeds higher 30-1 / 4000 seconds, image stabilization and penta-mirror finder View Face Detection technology into an array of excellent and valuable features to the Canon Rebel camera T2i. The new Rebel T2i be even better than the EOS 500D, with a capacity to capture 3. 7 frames per second while shooting mode. This camera model is not sold with a standard camera dock, and does not shock / cold / water proof characteristics or wireless flash as well as all previously discussed models of Canon cameras. Each time you use it, you’ll be assured of outstanding, impeccable, capturing perfect pictures and video integration processor DIGIC 4 image, audio capture properties, three video outputs Two different formats capture capabilities and a wide range of exposure control T2i impressive as the Rebel is very desirable in the constitution for what it did not. noise reduction that eliminates digital noise in images and 3-inch LCD with Live View details visuals are some of the really nice bonus to have available on the Canon Rebel T2i. The LCD has been treated with an anti-reflective material that reduces glare and gave an aspect ratio of three to two. The designers also made it easier for users to enjoy their camera with a single button control for quick and easy access to camera settings and properties. You can set your flash modes and white balance. Or you can take advantage of the automatic settings of the Canon Rebel’s T2i.

Tags: , , ,
Posted in CMOS Input | No Comments »

« Older Entries
Newer Entries »