ZVS Phase-Shift PWM-Controlled Single-Stage Boost Full-Bridge AC–AC Converter for High-Frequency Induction Heating Applications

This paper presents a new single-stage utility frequency ac-high-frequency ac resonant power converter for high-frequency induction heating applications. The newly proposed ac-ac converter features a boost converter and a full-bridge resonant inverter integrated circuit with a source voltage sensorless control system. The experimental results of a 3.0 kW-40 kHz prototype are demonstrated on zero-voltage soft switching and steady-state characteristics, then, the validity of the proposed ac-ac converter is revealed from a practical viewpoint.