A combined PDM and AVC control for induction cooking appliances

This paper presents a combined pulse density modulation (PDM) and asymmetrical voltage cancellation (AVC) control for induction cooking appliances. The average output power can be adjusted by the varying output voltage waveform, which achieves the zero-voltage switching (ZVS) condition, and reduced the power losses on the IGBT switches. The proposed control improves the efficiency at the low power level as well as increases the power range operation. The simulated results using the PSPICE program verify the proposed control scheme.