KIEE International Transaction on Electrical Machinery and Energy Conversion Systems

The Korean Institute of Electrical Engineers (대한전기학회)
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An Employed Zero Voltage/Zero Current Switching Commutation Cell for All Active Switches in a PWM DC/DC Converter

  • Lee, Dong-Yun (Dept. of Electrical and Electronic Engineering, Hanyang University) ;
  • Hyun, Dong-Seok (Dept. of Electrical and Electronic Engineering, Hanyang University)
  • Published : 2002.04.01
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Abstract

This paper presents an improved Zero Voltage/Zero Current Switching (ZVZCS) commutation cell with minimum additional components, which provides soft switching at both turn-on and turn-off of main and auxiliary switches as well as diodes in a PWM DC/DC converter. The proposed soft-switching technique is suitable for not only minority, but also majority carrier semiconductor devices. The auxiliary switch of the proposed ZVZCS commutation cell is in parallel with the main switch, and therefore, the main switch and the diode are free of currentstress. The operation principles of the proposed ZVZCS commutation cell are theoretically analyzed using the PWM boost converter topology as an example. The validity of the PWM boost converter topology with the proposed ZVZCS commutation cell is verified through theoretical analysis, simulation and experimental results.

Keywords

References

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