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Bodos Power Systems - who has written 763 posts on PowerGuru – Power Electronics Information Portal.


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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) [...]

Parameters and Characteristics of 1700V Planar NPT+ IGBT with Enhanced Injection for High Power Modules

Posted on 31 July 2014

      Development results of 1700V NPT+ IGBT chips for modules with commutation power from 0,15 up to 4 MW By P. Mashevich and T. Kritskaya, Angstrem JSC; V. Martynenko; V. Muskatinev, A. Bormotov, M. Togaev, Electrovipryamitel JSC Introduction Power modules on the base of IGBT and FRD are currently the most common components [...]

1200V SiC Hybrid IGBT Modules for High Frequency Applications

Posted on 29 July 2014

      Dedicated IGBT-modules for high switching frequency operation have been successfully introduced to the market over the past years. Typical applications are X-ray generators, CT-scanners, induction heating, welding, plasma cutters or inverters for isolated or contactless electrical power conversion. By Eckhard Thal, Mitsubishi Electric Europe B.V., Ratingen, Germany The switching frequency in those [...]

Three Stability Assessment Methods Every Engineer Should Know About

Posted on 09 July 2014

      Many engineers are familiar with the Bode plot as an effective stability assessment method. However, some authors suggest and even teach that the Bode plot is the only method needed. This article shows why this thinking is short-sighted. A single, low cost instrument that can produce Bode plots, as well as two [...]

Sensor Module Ensures Optimum Battery Utilisation in Heavy-Duty Vehicles, called omniMoves

Posted on 08 July 2014

      Precise battery diagnostics makes maneuvering large, heavy-duty loads easier Isabellenhütte’s shunt-based IVT Modular sensor module measures the basic battery components’ current and voltage with an error rate of less than 0.1 per cent. This exceptional degree of accuracy provides for consistent power control and efficient utilisation, especially for high-capacity battery systems. This [...]