Synthesizing power electronic switching waveforms for reduced EMI generation

Niall Oswald, Bernard Stark, Colin Hargis, Bill Drury, Derrick Holliday

Research output: Contribution to conferencePaper

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.
Original languageEnglish
Number of pages6
DOIs
Publication statusPublished - Apr 2012
Event5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010) - Brighton, United Kingdom
Duration: 19 Apr 201021 Apr 2010

Conference

Conference5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010)
CountryUnited Kingdom
CityBrighton
Period19/04/1021/04/10

Keywords

  • power electronics
  • EMI
  • synthesizing
  • electronic switching
  • waveforms
  • reduced emi generation

Fingerprint Dive into the research topics of 'Synthesizing power electronic switching waveforms for reduced EMI generation'. Together they form a unique fingerprint.

Cite this