Category | November

Interview on Power Semiconductor Technology with Izak Bencuya, Vice President, GM Fairchild

Posted on 01 November 2006

       By Bodo Arlt, Editor BPSD   Bodo Arlt: What end markets will drive module technology? Izak Bencuya: Industrial markets are the first for modules followed by consumer appliance with variable speed inverter drives. This is mainly seen in Japan and China. Computing/server applications needing high efficiency will follow. Bodo Arlt: What is [...]

Sensorless Motor Control Algorithm

Posted on 01 November 2006

       Delivery of Improved Appliance Efficiency Conservation of energy is one of the most important challenges facing us in the 21st century. Recent advances in sensorless permanent magnet motor control technology can help to address this challenge by significantly reducing the energy used in appliances such as refrigerators, washers, fans, and air conditioners. [...]

Best Layout Practices for Switching Power Supplies

Posted on 01 November 2006

       Most power supplies are laid out on multi-layer boards Typical power supplies consist of a mixture of power components handling switching voltages and currents of large value and amplitude, and small signal components handling low-level analog signals, all in close proximity. By L. Haachitaba Mweene, Applications Manager, National Semiconductor   Laying out [...]

Advancements in MOSFET Technology for High Switching Frequency Applications

Posted on 01 November 2006

      By Tom Loder, Vice President of Sales & Marketing, Microsemi Power Products Group   Power metal-oxide semiconductor field-effect transistors (MOSFETs) are known for superior switching speed, and low gate drive power. In these respects, power MOSFETs approach the characteristics of an “ideal switch.” Because of these features, power MOSFETs are the best [...]

Selection, Power Loss Calculation, and Temperature Rise Analysis

Posted on 01 November 2006

       All-in-one efficient online tool for the power modules MELCOSIM offers a variety of possibilities to calculate the power loss and temperature rise for several different circuits and load conditions in order to give application support for the available Mitsubishi power modules. By Prasad Bhalerao and Eugen Stumpf, Mitsubishi Electric Europe, Germany   [...]

A Fast Body Diode UniFET

Posted on 01 November 2006

       Analyzed and Tested under Zero Voltage Switching The power supply market is dominated by majority carrier (high speed) switching devices. Fairchild has introduced a new highly optimized high speed fast body diode planar MOSFET (UniFET) for the SMPS market by reducing overall loss over regular 500V MOSFET. By Sampat Shekhawat, Praveen Shenoy, [...]

Eliminating the Inductor in DC/DC Regulators

Posted on 01 November 2006

       Reduce the inductor size by switching at faster frequencies Responding to the demand for smaller inductors in space-sensitive applications, leading analog IC suppliers have engaged in a speed race over the past few years, coming out with switching regulators featuring faster and faster frequencies. By Ralf Muenster, Director of Marketing, Power Products, [...]

Large Form Factor Video Displays

Posted on 01 November 2006

      Dot correction reduces system cost The LED lighting market is growing rapidly with applications ranging from alphanumeric informational displays to high quality, large form-factor video displays. These markets suffer from two opposing market forces: pressure for higher quality displays, and pressure for lower cost solutions. By Michael Day, Power Management Application Supervisor [...]

Efficient Virtual Prototyping of Electric Drive Systems

Posted on 01 November 2006

       Improving electrical, mechatronic, power-electronic, and electromechanical systems. Automotive engineers can now predict efficiency and fuel economy of vehicle designs, power management strategies, and the electrical design in one integrated design environment. With Simplorer, engineers can simulate complete drivetrains by combining fuel cells, batteries, power electronics, and electric motors in one model. By [...]

Optimising the Power Switch in High Voltage Applications

Posted on 01 November 2006

       High voltage bipolar transistors in SMT package Small high voltage loads are today found in abundance. Be they actuators, motors, solenoids or transformers, power supply or power conversion circuits, all are subject to the relentless quest for better energy efficiency, improved reliability, and reduced cost and footprint. By Peter Blair, Discrete Product [...]