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Bodos Power Systems - who has written 767 posts on PowerGuru – Power Electronics Information Portal.


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Practical, Efficient and Safe Power Device Thermal Characterisation

Posted on 17 September 2014

      By Hisao Kakitani, Koji Tokuno and Ryo Takeda; Keysight Technologies Japan Power devices are used in a wide range of applications such as; train, automotive, traction, power generation etc. that are operated in harsh and extreme environmental conditions. Robust design for reliability and safety are paramount in these applications. A key initial [...]

Going Mini

Posted on 15 September 2014

      Another step towards small power applications Vincotech goes mini with the next smaller housing size, taking another step towards small power applications where discrete components have figured so prominently in the past. Various topologies featuring diodes, IGBTs and MOSFETs may be implemented with the new housing to help miniaturize devices, minimize stray [...]

Semiconductor Advances for Lower-Cost EVs

Posted on 12 September 2014

      The world is getting ready to drive electric. Established car brands are adding new plug-in hybrids and full EVs to their ranges, and even supercar manufacturers are taking advantage of electric drive. Governments are also backing the move: a recent EU draft agreement proposes new national minimum targets for publicly accessible EV [...]

What to Watch for when Turning on a SMPS for the First Time

Posted on 10 September 2014

      In the near future, SMPS will completely displace conventional supplies, hence also engineers who are no specialists will have to cope with them. Turning on a new or unknown SMPS, especially offline - SMPS, can have unexpected and disastrous effects. This article describes some dangers, precautions and procedures for setting up and [...]

Comparing the Benefits of Using an Integrated Power Module versus a Discrete Regulator

Posted on 01 September 2014

      Today’s power systems for communications and computing infrastructure support high current loads from increasingly power hungry FPGAs, ASICs and microprocessors. To supply these high current circuits, equipment makers often rely on discrete power solutions that are complicated, take up valuable real-estate and may have significant power output limitations. By Chance Dunlap, Intersil [...]

Getting the Best Performance from AC to DC Power Supplies in Abusive Environments

Posted on 29 August 2014

      By Ira J. Pitel Ph.D., Magna Power Electronics INTRODUCTION Ac to dc power supplies can be found in applications where power needs to be processed from the ac power mains to loads requiring a fixed or variable dc voltage or current. While such equipment has few input and output connections, engineers frequently [...]

Unique PFC Controller for Design Challenges of Packaged Air Conditioner

Posted on 06 August 2014

      Air conditioners are an important appliance in almost every residential and commercial building. While both window-type and duct-type air conditioners are common in the market today, duct-type air conditioners are becoming more main stream today due to their ease of installation. By Wen Chien, BLDC Product Line Marketing Manager, Fairchild Semiconductor However, [...]

Decentralized Drive Technology Solution with MPU

Posted on 05 August 2014

      In factory automation, decentralized drive solutions have many benefits over centralized drive solutions. For the latter, the frequency inverter and control unit is mounted inside a control cabinet and it requires multiple cabinets as well as star cabling topology for each drive. By Thomas Mauer, Texas Instruments Decentralized drives have the frequency [...]

Feature-Rich Optocoupler Enables IGBT Driving Scalability

Posted on 04 August 2014

      High scalability of an IGBT driving solution and consistent protection measures are essential requirements for a power converter platform design. The ACPL-339J gate drive optocoupler uses dual outputs to drive a current buffer’s upper and lower MOSFETs separately, thus allowing delicate timing control techniques to be integrated in the optocoupler. This design [...]

2nd Generation Si and SiC SGTOs for Extreme Pulse Power and Sub-Microsecond Switching

Posted on 01 August 2014

      Through a series of ARL Cooperative Agreements, Silicon Power has been able to optimize Silicon and SiC Super GTOs (SGTOs) for extreme pulse power, operating in excess of 10kA/cm2, about a 10-fold higher density than the traditional thyristor. Moreover, SGTO active turn-off also provides the opportunity for supporting recovery voltage times (tq) [...]