Category | March

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 [...]

Methods of Current Measurement in Mid-Frequency Power Circuits

Posted on 14 March 2014

      Fast-changing power current precise measurements are very important in modern measuring equipment for power semiconductor devices. It is quite important for converter equipment as well, since improved control algorithms are used there, which require knowledge of instantaneous current value in a certain period of time. By Alexey Poleshchuk, R&D Center, Proton-Electrotex JSC [...]

Power meets Precision

Posted on 13 March 2014

      The PX8000 Precision Power Scope is a mixture of power-analyzer and oscilloscope DLM4000, WT3000, DL850E – Yokogawa’s last year’s developments focused on power measurement in a special way. The new Power Scope PX8000 is supposed to fill a gap in this power measurement solution as it combines power-analyzer and oscilloscope functions. By [...]

WPC Standard Wireless Charger Receiver Solution Based on FPGA

Posted on 11 March 2014

      By Louis Tang, Fairchild Semiconductor Background With the vigorous development of wireless charger technology, and as more smartphone users are plagued by various charging cables, the convenience of a wireless charger will be widely accepted and adopted. Currently there are three different wireless charger standards – WPC (Qi), PMA and A4WP. The [...]

Programmable Power Technology offers Highest-In-Class Power Density and Efficiency with Versatile Programmable Functionality

Posted on 10 March 2014

      The increased complexity and sophistication of modern electronics in the field of networking, telecommunications, embedded systems, industrial control systems and automatic test equipment creates an ever increasing demand for advanced high performance power management systems. By: Alan Elbanhawy, Simo Radovic and Jason Weinstein, Exar Corporation, California, USA These systems require a host [...]

SEPIC-Fed Buck Topology Boosts Performance in Non-Isolated DC-DC Converters

Posted on 06 March 2014

      A point-of-load (POL) converter is a step-down dc-dc converter designed to supply constant voltage to a load, (almost) independently of load currents. It has become a popular solution for a wide variety of applications: from networking and telecommunications to data-communications and computing applications. By Fariborz Musavi, Director of Engineering, CUI The use [...]

Systems Approach to Server Power Supplies

Posted on 05 March 2014

      Supported by New Synchronous MOSFET Driver Family In an effort to provide better solutions to its customers in the server arena, Infineon Technologies has enlarged its focus from pure MOSFET technology and product to system solutions. This means that Infineon supplies not only the MOSFET for the power converter but also the [...]

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 [...]

PMBus – the Rising Star!

Posted on 26 February 2014

      Once upon a time, there was an ugly step-child called “power” that was shoved in a corner where it could be hardly be seen and most definitely not heard. But as applications became more intelligent, the step-child began to grow with it. Now, the world is becoming more energy conscious and more [...]