Category | Application and Design

How Proper Applications of Thermally Conductive Materials will Improve Motor Power Density

Posted on 30 July 2015

      Motor designers have battled heat in motor designs for years. Thermal losses in electric machines rob motion systems of power and degrade efficiency. Excess heat can reduce reliability of motors and shorten their lifetimes. Meanwhile, electrification in all transportation sectors is driving requirements for motors with ever-higher power densities. By Anita LaFond, [...]

Keep Pace with Today´s Power Technology

Posted on 25 July 2015

      As one of the leading electronics companies Texas Instruments fuels power designs with an innovative portfolio and speeds time to market with powerful, easy-to-use design tools. Now the company extends its power product range with some industry firsts. By Wolfgang Patelay, Freelance Journalist, Bodo´s Power Systems According to Dave Priscak, Director, Power [...]

Switching Behavior of USCi’s SiC Cascodes

Posted on 15 June 2015

      The co-packaged cascode device, combining a Silicon low voltage FET with a trench vertical SiC normally-on JFET, was recently introduced by United Silicon Carbide. This device has several benefits, including the ability to use standard 10V or 12V gate drive, high Vth (4.5V), fast temperature independent switching, avalanche and short circuit-ratings and [...]

Wireless Power Transmission with High Efficiency and Wide Dynamic Range for Extensive Applications

Posted on 15 June 2015

      Wireless power transmission has been known for many years, with inductive near field proximity coupling being the most commonly used technology. By Markus Rehm, Ingenieurbuero Rehm, Villingen-Schwenningen, Germany The demand for wireless power supplies is huge: Mobile devices, charged without wire or contact, are robust, splash proof, reliable, simple to protect against [...]

Maintaining Precision in Varying Temperatures

Posted on 02 June 2015

      High precision transducers are becoming more in demand in high-performance industrial applications, specifically for medical equipment such as scanners and MRI machines, precision motor controllers, metering, measurement accessories and test equipment. By Michel Ghilardi, R&D Programme Manager, LEM, and Horst Bezold, Signaltec Most of these applications are using high precision transducers but [...]

SiC-Diodes, SiC-MOSFETs and Gate Driver IC

Posted on 18 May 2015

      The best use of SiC devices and applications are shown. Uninterruptible Power Supplies (UPS) will be described in more detail. Additional to SiC, a portfolio of very fast, high output current and high common noise immunity Gate Drivers will be introduced. Those devices can drive Si-SJFET and -IGBTs but are especially perfectly [...]

Optimizing Control of Both the Synchronous Rectifier and Primary MOSFET in Flyback Power Supplies Improves Efficiency and Reliability

Posted on 04 May 2015

      Overcomes the limitations of Schottky diode rectifier designs without the complexity of traditional synchronous rectifier implementations By Silvestro Fimiani, Senior Product Manager, Power Integrations Designers of flyback power supplies have generally used Schottky diode rectification in the output stage due to its simplicity and low cost. Diode-rectifier designs have proven adequate in [...]

Performance Comparisons of SiC Transistors, GaN Cascodes and Si - Coolmos in SMPS

Posted on 20 April 2015

      How do available SiC - transistors and GaN cascodes stack up against Si - Coolmos in real-world SMPS? Proven by extensive tests, neither SiC transistors nor GaN cascodes beat Si Coolmos. Alleged advantages of GaN are due to the cascode, not the material. By Dr. – Ing. Artur Seibt, Vienna Introduction and [...]

Web-based Simulation Tool to Simplify IGBT Selection and Thermal Design in Minutes

Posted on 16 April 2015

      By Kristofer Eberle, Plexim and Jiangmin Chunyu and Andrea Gorgerino, International Rectifier, An Infineon Technologies Company For a given voltage, current rating and package type, there can be many possible IGBT candidates. Additionally, the designer has to ensure that the power stage operates reliably within the thermal constraints. To alleviate these two [...]

A Low-Cost LED Driver Module, 0.5 A/33 V

Posted on 31 March 2015

      For general use, with efficiency above 90% This article describes a simple constant current driver module with fast PWM input that can be used for driving mid and high power LEDs. By Valentin Kulikov, FuturoLighting This module operates from 8V to 33V and the output current can be configured from 0.1 to [...]