Picture of scraped petri dish

Scrape below the surface of Strathprints...

Explore world class Open Access research by researchers at the University of Strathclyde, a leading technological university.

Explore

Synthesizing power electronic switching waveforms for reduced EMI generation

Oswald, Niall and Stark, Bernard and Hargis, Colin and Drury, Bill and Holliday, Derrick (2012) Synthesizing power electronic switching waveforms for reduced EMI generation. In: 5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010), 2010-04-19 - 2010-04-21.

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A method of analysing switching waveforms using their derivative terms shows that imposing an ‘S-shaped’ profile on the switching transitions offers significant improvements in the control of power loss and radiated EMI in power converters. Numerical modelling to investigate the effects of varying the timing parameters of the waveforms enables switching transients to be shaped to reduce high-frequency spectral content. The resulting synthesized waveforms are used to demonstrate experimentally that total high-frequency power content is reduced without any associated increase in switching time and therefore power loss.