Development of a soft-switching power supply for ozone generation based on phase-shifted control

摘要

The paper presents a novel soft-switching topology based on phase-shifted control for ozone supply, where the two switching devices and the one lossless capacitor based on full bridge inverter are added to achieve ZVS/ZCS. Six switching modes are analyzed in detail during half period. With TMS320F28335 as a controller, the output voltage loop based on PI algorithm is designed to steady the AC high voltage, and phase-shifted control changes the output power, and frequency tracking of load current remained series quasi-resonant state.