Category | Technology

The Future of Power Semiconductors

Posted on 20 April 2016

      Rugged and High Performing Silicon Carbide Transistors The use of SiC based power semiconductor solutions has shown a huge increase over the last years, it is a revolution to rely on. Driving forces behind this market development are the following trends: energy saving, size reduction, system integration and improved reliability. By Dr. [...]

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 [...]

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 [...]

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 [...]

Active Vibration Control in Ultrasonic Wire Bonding

Posted on 17 December 2014

      Improving Bondability on Demanding Surfaces Ultrasonic wire bonding is an established technology for connecting the electrodes of microelectronic devices as well as power electronic modules. Bonding on demanding surfaces like connector pins embedded in plastic frames can challenging. A new approach for surpressing unwanted vertical vibrations by an active vibration control can [...]

Pushing Hall Effect Technology to New Limits

Posted on 06 November 2014

      Transducers break new ground in accuracy over a wide temperature range Reducing energy consumption and improving efficiency are key targets for most power electronics applications, especially in motor control drives, in uninterruptible and switch-mode power supplies or for industrial uses such as welding. Outside the industrial sphere, the same goals can be [...]

CIPS 2014 - A Race towards the Lowest Inductive Power Module

Posted on 07 May 2014

      292 engineers and scientists attended the conference, 24% more than 2012 Attendees came from 17 countries in Europe, America and Asia with 22 participants alone from Japan. The 8th International Conference on Integrated Power Electronics Systems (CIPS 2014) was held on 25-27 February 2014 in Nuremberg as part of the ECPE Annual [...]

Comparison of Silicon Versus Gallium Nitride FETs for the Use in Power Inverters for Brushless DC Servo Motors

Posted on 17 March 2014

      The Institute of Robotics and Mechatronics of the German Aerospace Centre (DLR) is actually developing a new lightweight robot named SARA, what stands for Safe Robot Assistant. As successor of the LBR III it is the 4th generation of lightweight robots made at the institute. It will feature safe sensor signal supervision [...]

200A/600V Silicon Carbide Hybrid Intelligent Power Module for Servo-Inverter Applications

Posted on 03 March 2014

      In Multi-Axis Servo-Drives several servo amplifiers are operating from a common DC-link power supply. Mechanically those servo amplifiers usually are mounted in a so called “book-shelf-arrangement” in a common mechanical rack. This specific construction principle is providing a limited space at each inverter’s backside for cooling the power semiconductors. By E.Thal, Mitsubishi [...]

Efficiency Improvement in Booster Power Modules with SiC Components

Posted on 27 February 2014

      Two factors are shaping the development of advanced power conversion systems - increasingly stringent standards for energy efficiency, especially in solar and UPS applications, and the need to decrease the overall system’s costs for the customer. By Dr. Evangelos Theodossiu, Product Marketing Manager, Vincotech GmbH These two goals are rather ambitious, at [...]