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Analog Devices Introduces Industry’s First Isolated Gate Drivers with Integrated Isolated Power: – ADuM5230 and ADuM6132 isolated half-bridge gate drivers reduce system cost and size while increasing quality and reliability for motor drives, power inverters, and plasma displays.

Saturday, March 5th, 2011

NORWOOD, Mass. (PRWEB) March 19, 2008

Analog Devices’ engineers integrated an isolated power supply and isolated gate drivers in the same package by using the company’s award-winning iCoupler(R) technology. This provides isolated high-side and low-side outputs together with ADI’s proprietary isoPower(TM) integrated, isolated power. isoPower leverages iCoupler technology’s chip-scale micro-transformers along with high-voltage CMOS to create an isolated dc-to-dc converter.

About the ADuM5230 and ADuM6132 Isolated Half-Bridge Gate Drivers

The ADuM5230 and ADuM6132 are designed for implementations that include motor drives, plasma displays, and power inverters found in power supplies and solar power converters. On both devices, the integrated, isolated converter powers both the high-side output as well as any external buffer circuitry, eliminating the cost, space, and design complexity associated with external power supply configurations.

The ADuM5230 and ADuM6132 differ in power capability and high-side/low-side isolation configuration. In the ADuM5230, which supplies 150 mW of power, the high-side and low-side outputs are isolated from each other as well as from the inputs. In the ADuM6132, which supplies 250 mW of power, only the high-side output is isolated from the input.

In contrast to gate drivers employing high-voltage level translation methodologies, the ADuM5230 and ADuM6132 offer the benefit of true galvanic isolation between the inputs and outputs. On both products, the outputs may be operated up to +/-700 V (peak) relative to each other. On the ADuM5230, the isolated outputs may be operated up to +/-700 V (peak) relative to the inputs, thereby supporting low-side switching to negative voltages.

Availability and Pricing

The ADuM5230 will sample and be available in full production quantities in April 2008. Housed in a wide-body SOIC (small-outline integrated circuit) 16-lead package, the ADuM5230 is priced at $ 2.25 per unit in 1,000-unit quantities. For more information, visit http://www.analog.com/pr/ADuM5230.

The ADuM6132 is sampling now, and will be available in full production quantities in July 2008. Housed is a wide-body SOIC 16-lead package, the ADuM6132 is priced at $ 2.12 per unit in 1,000-unit quantities. For more information, visit http://www.analog.com/pr/ADuM6132.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices’ common stock is listed on the New York Stock Exchange under the ticker “ADI” and is included in the S&P 500 Index. http://www.analog.com

iCoupler is a registered trademark and isoPower is a trademark of Analog Devices, Inc.

Tags: ADuM5230, ADuM6132, Analog, Cost, devices, displays, Drivers, drives., first, for, Gate, halfbridge, increasing, industry's, Integrated, introduces, inverters, Isolated, Motor, plasma, power, quality, Reduce, Reliability, size, system
Posted in CMOS Inverter | No Comments »

File System Size Mismatch Causes Data Loss in Linux

Wednesday, February 9th, 2011

File System Size Mismatch Causes Data Loss in Linux

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File System Size Mismatch Causes Data Loss in Linux

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Posted: Jan 11, 2011 |Comments: 0
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Like other computer operating systems, Linux also uses a number of data structures to perform various operations. These data structures include Superblock, root directory. Superblock is one of the most significant data structures, which contains all the basic information, such as file system type, status (either mounted or un-mounted), and size. In some situations, this data structure may get damaged and Linux cannot access data from hard drive. It causes critical data loss situations and requires Linux data recovery to be fixed. Linux file system manager accesses the Superblock information for maintaining it. All the parameters, like size, defined in the Superblock must match the actual parameters; otherwise you may face critical problems. For example, if the size of is different in Superblock as compared to actual size, then disk is reported as corrupt and you run across critical data loss problem and need to opt for Linux recovery solutions. As a practical instance of this issue, you might get the below error message when you try to access data from a Linux operating system based hard drive-”The filesystem size (according to the superblock) is xxxThe physical size of the device is yyy. “The above error most frequently occurs when you try to repair Linux files using the fsck command. The above error suggests that the file system size is mismatching and the partition is damaged. CauseYou may come across this behavior in Linux operating system, if any of the below conditions are true-An application or the system is attempting to write data on hard drive where Superblock is located. The problem occurs when Linux operating system prevents the application from writing. The hard drive volume is damaged. The file system, partition table, or the Superblock is damaged. To perform data recovery Linux in such cases, you need to resolve this issue as soon as possible. ResolutionTry out the below Linux data recovery methods to work around this behavior-Boot your system in the single-user mode. Run unmount -a command to unmount disk volumes. Try repairing the Linux volumes using fsck command. Resize Linux volumes with the help of resize2fs command. In case the above Ext2 recovery solutions fail to work, opt for Linux data recovery software to extract your precious data. Such Linux recovery applications perform absolute data recovery Linux using advanced scanning techniques. They offer safe and easy Ext3 recovery.

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About the Author:Maria Peter a student of Mass Communication doing research on Data recovery Linux, Linux Data Recovery software And Ext3 Recovery. she is also a freelancer for http://www. data-recovery-linux. com/

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Source: http://www. articlesbase. com/data-recovery-articles/file-system-size-mismatch-causes-data-loss-in-linux-4013032. html

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linux data recovery, ext2 recovery

Canon EOS 50D With CMOS APS-C size sensor

Monday, August 16th, 2010

Contrary to the traditional 18 months to upgrade, Canon announced the 50D almost exactly one year after the arrival of the EOS 40D, which has assured us will be a sister model, rather than replacement. Recent history has seen Canon release new models every 18 months-or-SO, but it’s been a busy year with newcomers such as the Nikon D300 is receiving much attention in the segment 40D Keen -amateur/professional. The 50D is essentially a 40D body wrapped around a new 15-megapixel sensor developed that finally rectifies the situation in which the range Canon XXD dragged the company’s online entry level in terms of pixels. Canon claims the new sensor design (new manufacturing processes redesigned photo diodes and micro lenses) mean that despite the noise of the image higher resolution has improved, what we are going to test later. The other big change is the inclusion of a new high resolution LCD screen. 920,000 dot means it can transmit 640 x 480 pixels RGB, making it a standard VGA screen. Three layer anti-reflective screen built into their best to keep useable in bright conditions, too. Images of exceptional quality. New 15. 1-megapixel CMOS with enhanced noise reduction, ISO range 100-3200 (H1: 6400, H2: 12800), 14-bit conversion for smooth color tones and gradations. The EOS 50D features a new design 15. 1-megapixel CMOS APS-C sensor which is capable of recording up to 4752 x 3168 pixels with all 14-bit A / D for extremely fine tonal gradation. Ready to capture images in an instant, the sensor is designed to work with all Canon EF and EF-S with a conversion factor of 1. 6x. It is capable of recording at sensitivities previously too noisy for shooting in low light or moving subjects. With a maximum rating of ISO 12800 combined with a 4-speed top-level function for noise reduction ISO images that would have been impossible without the use of a strobe or flash become simple to record. 15. 1 Megapixel CMOS APS-C size sensor Canon EOS 50D Basic Features 15. 1-megapixel CMOS APS-C size sensor with gapless microlenses 6. 3 frames per second 3. 0-inch LCD with 920,000 pixels Top Status LCD ISO range of 100-12800 Shutter speeds from 30 seconds to 1 / 8, 000 Compact Flash Type I and II, UDMA Slots Lithium ion 5. 7 x 4. 2 x 2. 9 inches (146 x 108 x 74mm) 1. £ 81 (822g) with battery and card, but no objective Canon EOS 50D Special Features DIGIC 4 delivers faster processing 14-bit A / D New Search menu Live View with Contrast Detect AF Face Detection AF in Live View mode Silent shutter mode in Live View mode for shooting wildlife Dedicated Live View button Peripheral illumination (vignetting) Correction Highlight Tone Priority mode Automatic lighting optimizer with multiple levels New Creative Auto exposure mode gives users more control over early background blur and motion blur without having to understand or opening the shutter speed Three modes RAW: RAW (15 1. Megapixels) sRAW1 (7 1. Megapixels), and sRAW2 (3. 8 megapixels) RAW mode available in scene modes and full-auto modes as well as Creative Zone EOS Integrated Cleaning System for dust control in three phases, kidnapping, and after removal AF Lens microadjustment Center AF point offers enhanced accuracy along both axes with lenses of f / 2. 8 or faster Scratch resistant, anti-reflective coating LCD Capable of gusts up to 90 Large / Fine JPEG or 16 RAW images on a UDMA CF card Several levels of noise reduction: Standard / little / much / No The HDMI output allows viewing of camera images on HD televisions UDMA Nine cons-type AF sensors Pentaprism with 0. 95x magnification mode selector has two custom modes My menu for quick access to common settings Interchangeable focusing screens Rough translation software included In the box Canon EOS 50D Body Cap (more front and rear caps if kit is purchased) Camera strap EW-EOS50D Battery Charger CG-580 Canon 50D Battery BP-511A USB Cable IFC-200U Video Cable VC-100 Software CD with Digital Photo Professional for RAW conversion Manuals card, registration

Tags: APSC, Canon, CMOS, SENSOR, size
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