Zero Voltage Switching Converters

Abstract

In this paper zero voltage switching converters are investigated. The investigation starts by discussing the RCD charge-discharge snubber. The concept of resonant and qua si-resonant DC link converters is discussed. One of the most promising quasi-res onant DC links reported in the literature is implemented and tested in a battery charge r application. Simulated resonant link voltage and current waveforms are analyzed. IGBT swi tching waveforms under zero voltage conditions are investigated. Measured waveforms are s hown and the converter and the overall battery charger efficiency are measured