A composite soft-switching inverter configuration with unipolar pulsewidth modulation control

Xiangning He, Kuang Sheng, Barry W. Williams, Zhaoming Qian, Stephen J. Finney

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This paper presents a new composite soft-switching configuration for single-phase inverters where power bridge leg modules are used. The presented configuration consists of only one inductor and one capacitor as well as two low-power-rated switches/diodes for full-bridge circuits. It can realize snubber functions and/or resonant zero-current switching at any load current for switches in power inverters with unipolar sinusoid pulsewidth modulation control. The idea presented here is that soft-switching processes at turn-on and -off for each active switch in inverters can be different. The detailed circuit operational processes, simulation waveforms, and experimental results are included.

Original languageEnglish
Pages (from-to)118-126
Number of pages9
JournalIEEE Transactions on Industrial Electronics
Volume48
Issue number1
DOIs
Publication statusPublished - Feb 2001

Keywords

  • Power inverter
  • Pulsewidth modulation control
  • Snubber
  • Soft switching

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