The invention discloses a cooking appliance and an
electric heating device for the cooking appliance. The
electric heating device comprises an interactive interface, a first
inductor, an IGBT, a
resonance coil, a first
capacitor, a second
capacitor, a third
capacitor, a switching
assembly and a
control circuit. The first end of the first
inductor is connected with a power source, the first end of the IGBT is grounded, the first end of the
resonance coil is connected with the second end of the first
inductor, the second end of the
resonance coil is connected with the second end of the IGBT, the first end of the first capacitor is connected with the first end of the resonance coil, the second end of the first capacitor is grounded, the first end of the second capacitor is connected with the first end of the resonance coil, the first end of the third capacitor is grounded, the second end of the third capacitor is connected with the second end of the resonance coil, the first end of the switching
assembly is connected with the second end of the second capacitor, the second end of the switching
assembly is connected with the second end of the third capacitor, and the
control circuit is used for controlling on-off of the IGBT and the switching assembly according to user instructions, so that by changing resonance parameters of a resonance circuit, the power range of continuous heating is expanded, and user cooking experience is improved.