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

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He, X. and Sheng, K. and Williams, B.W. and Qian, Z. and Finney, S.J. (2001) A composite soft-switching inverter configuration with unipolar pulsewidth modulation control. IEEE Transactions on Industrial Electronics, 48 (1). pp. 118-126. ISSN 0278-0046 (http://dx.doi.org/10.1109/41.904571)

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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 pulse width modulation control. The idea presented here is that soft-switching processes at turn-on and turn-off for each active switch in inverters can be different. The detailed circuit operational processes, simulation waveforms, and experimental results are included.

ORCID iDs

He, X., Sheng, K., Williams, B.W., Qian, Z. and Finney, S.J. ORCID logoORCID: https://orcid.org/0000-0001-5039-3533;
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