Category | March

Maximizing Integrated Battery Charger Performance

Posted on 01 March 2007

      Intelligent thermal control managing power New multi-function power management ICs promise to reduce PCB size by integrating multiple blocks onto a single chip. Such integration can threaten system integrity by exceeding the thermal limits of the device package. An intelligent thermal control circuit eliminates this problem by dynamically managing power usage and, [...]

Interview on Technology of Current Transducers

Posted on 01 March 2007

       with Paul Van Iseghem, President and CEO LEM By Bodo Arlt, Editor BPSD   Bodo Arlt: What end markets drive current transducer technology? Paul Van Iseghem: For LEM there are four focus markets that drive the current transducer business development. Our business started 35 years ago when the founder of LEM, Mr Jean [...]

Powering the Modern Electronic Revolution

Posted on 01 March 2007

       Digital control has the ability to raise power supply performance to the next level If a single event were to define the start of the modern electronic revolution, it would have to be the 1958 invention of the Integrated Circuit (IC). The independent work of two inventors, Robert Noyce, co-founder of Fairchild [...]

Exploring the Behaviour of Parallel IGBT Modules

Posted on 01 March 2007

      Tested under extreme SOA conditions The extreme ruggedness of high voltage SPT-IGBT modules has enabled the investigation of new limits in IGBT SOA performance when operating in parallel. In this article, a set of results is presented where two 3300V/1200A SPT-IGBT modules were tested in parallel under extreme RBSOA conditions with a [...]

Vertical Structure to Optimize On-Resistance in Power MOS

Posted on 01 March 2007

      The lower resistance allows a smaller chip Consumer products have become a leading technological and market driver of the semiconductor industry, fostering an ever-increasing demand for power density in devices targeted for that segment. By Dick James, Senior Technology Advisor, Chipworks   Chipmakers have found that by reducing power losses, they can [...]

Trends in Battery Powered Portable Devices

Posted on 01 March 2007

      Power rail requires a fixed 3.3V output The year of 2006 turned out to be a stellar year for the shipment of battery-powered portable electronic devices. During the course of 2006, consumers bought over 950 million cell phones, 220 million notebooks, 140 million MP3 players, 90 million DSCs and 10 million GPS [...]

Specifying Optocouplers for Safe and Robust Industrial Systems

Posted on 01 March 2007

      Isolators for IEC/EN/DIN EN 60747-5-2 In the industrial field the system level safety standards are IEC (International Electrotechnical Commission) 6041 for worldwide or international standards, UL5082 (from Underwriters Laboratories) for the United States and EN 501783 (from the European Union) for Europe. At the component level for optocouplers, the safety standards are [...]

The Challenge of Packaging Small Power Devices

Posted on 01 March 2007

      Better Electrical Performance, Lower Cost, High Reliability The demand for smaller and thinner devices is dictating the development of packaging and interconnecting techniques for discrete power semiconductors. This trend is driven by requirements of space-critical end applications, and enabled by ongoing substantial improvements in silicon efficiency. By Siegbert Haumann, Christoph Luechinger, Orthodyne [...]

Film Technology has Wind in its Sails

Posted on 01 March 2007

         Film capacitors overcome internal defects Aluminium electrolytic capacitors present serious deficiencies for the higher voltages required in the very latest wind power applications. In contrast, film technology offers significantly improved life expectancy, environmental performance and power handling. By Gilles Terzulli and Craig Hunter, AVX   Wind power is a fast growing [...]