Embedded controlled low-frequency AC to high-frequency AC converter fed induction heater

摘要

The purpose of this paper is to present, a novel boost-active clamp bridge single stage high-frequency zero voltage soft-switching-pulse width modulation (ZVS-PWM) inverter, which converts the utility frequency AC power into high-frequency AC power with an embedded controller. This single stage high-frequency inverter is composed of a single-phase diode bridge rectifier, a non-smoothing filter, a boost-active clamp bridge type ZVS-PWM high-frequency inverter, and an induction-heated load with planar type litz wire working coil assembly. Also, the paper discusses how to extend the soft-switching operation ranges and improve power conversion efficiency.