Zero-voltage-switching PWM inverter for high-frequency DC-AC power conversion

Jin He, Ned Mohan, Bill Wold

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


A zero-voltage-switching (ZVS) three-phase PWM inverter which uses a newly proposed Parallel-Resonant DC-Link (PRDCL) circuit is further examined in this paper. The proposed PRDCL circuit is aimed at both providing zero-dc-link voltage periods for PWM inverter switchings and imposing minimum dc bus voltage stress to PWM inverters. A simple circuit control scheme and the design formulas are offered. To confirm the circuit theoretical analyses and results, a 50-watt ZVS single-phase PWM inverter experimental prototype using the proposed PRDCL circuit was fabricated and tested. The test results have proved the proposed circuit and concept. The paper concludes with the power device selections and device stress evaluations as well as a detailed comparison of the proposed PRDCL ZVS inverter system with conventional voltage source PWM inverters.

Original languageEnglish (US)
Pages (from-to)959-968
Number of pages10
JournalIEEE Transactions on Industry Applications
Issue number5
StatePublished - 1993


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