Performance evaluations of single-ended quasi-load resonant inverter incorporating advanced-2nd generation IGBT for soft switching

The authors present an efficient single-ended high-frequency induction heating quasi-resonant inverter circuit using a single advanced second generation insulated gate bipolar transistor (IGBT) for soft switching and its specially designed driver IC, which operates in a zero voltage soft switching (ZVS) mode under a PFM-based power regulation strategy. The generic voltage-fed and current-fed circuit versions of single-ended resonant inverters for home power electronics appliances are systematically proposed and classified on the basis of the soft switched PFM mode inverter family. The advanced IGBT designed for the application specific soft switching and its driver IC are demonstrated as a novel induction heating rice cooker including cooking vessel and evaluated from an experimental point of view. These new technologies are especially developed for a quasi-resonant ZVS high-frequency inverter with working coil-linked induction heating loads