Category | September

Interview on Power Module Technology

Posted on 01 September 2007

      with Peter Ingram, President of European Operations, IXYS By Bodo Arlt, Editor BPS   Bodo Arlt: What future end markets will drive IXYS for power module technology? Peter Ingram: The traditional market for power modules, drives and UPS will continue to have a very high priority. Variations and adaptions of electric drive [...]

Spring contacts - reliable alternative to critical solder contacts

Posted on 01 September 2007

       Power Module for Powerful Applications More and more new electronic circuits and chip technologies are now being used in solar inverters to increase the efficiency rate of inverters and, consequently, overall system efficiency. The consequence for power electronic modules: they have to be efficient, flexible, and environmentally compatible, all at the same time. [...]

Using Digital Control to Improve Light Load Behaviour

Posted on 01 September 2007

       The control loop response can be changed whenever needed Since the very first Digital Power Forum which took place in 2004, many articles have been written touting the general advantages of using digital control. It was at this time that ROAL Electronics introduced into the marketplace the first digitally controlled DC-DC converter. [...]

Power Converter Developer Kit

Posted on 01 September 2007

      A fully self-supportive, high density power converter The demand for power conversion is ever increasing [1]. Major drivers for this increasing demand include growth of distributed generation systems and uninterruptible power supply (UPS) systems, higher system efficiency requirements, and increased demand for higher levels of power quality and power reliability. By Perry [...]

TinySwitch-PK Doubles Peak Power Budget

Posted on 01 September 2007

      TinySwitch-PK incorporates a 700 V MOSFET An important goal of electronics design today is to optimize cost and minimize power consumption. Personal video recorders (PVRs) and other consumer products containing disk drives represent an interesting challenge in this regard. By Doug Bailey, VP Marketing, Power Integrations   These units run extremely smoothly [...]

Process Flow Optimization

Posted on 01 September 2007

       Absolute Encoders in Valve Control In process flow control, there are many factors affecting variability but the greatest contributor is the control valve’s performance. Issues associated with control valves, such as dead band, actuator/positioner’s design, response time, valve type, and sizing, all have huge impacts on process flow. Extensive studies on control [...]

Revolution in the Cockpit

Posted on 01 September 2007

       TFT liquid crystal screens and optoelectronics change passenger compartments. So-called Central Information Displays (CID) continue to appear in more and more car dashboards. Although the CIDS are mainly used in luxury cars at the moment, experts estimate an average growth of around thirteen percent per annum in Europe over the next few [...]

Long-Term Stability of Aluminum Electrolytic Capacitors

Posted on 01 September 2007

      This is of particular benefit for automotive customers Aluminum electrolytic capacitors are used in a variety of automotive applications. These include engine management systems for fuel injection as well as control systems for fan and windshield-wiper motors, electronic steering systems, airbags, and multimedia equipment. By Christian Baur, Product Marketing Aluminum Electrolytic Capacitors [...]

2-phase Switched Reluctance Motor Drives

Posted on 01 September 2007

       SRM is used mainly in vacuum cleaners There is growing attention about the use of energy-efficient devices to preserve the environment. The concern for energy efficiency is forcing the industry to find new solutions without compromising the application requirements. By Byoungchul Cho, Sungil Yong, Motion Control System Group, Fairchild Semiconductor, Korea   [...]

A Discussion of the Active Clamp Topology

Posted on 01 September 2007

       Primary switches are switching in a lossless manner The Active Clamp is a topology being favored for a significant number of power converters. There is a misconception, however, that the main FET turns on in a zero voltage condition. The transition of the clamp FET to the main FET is the subject [...]