| 摘要 |
PURPOSE: The induction heater of a current resonance mode equipped with a multi-stage working coil is provided to minimize the number of switching elements by connecting serially a plurality of working coils and controlling an induction heating motion with one inverter. CONSTITUTION: A working coil part(40) heats a cooling container by inducing an eddy current to the cooling container. The working coil part is composed of a plurality of subsidiary wording coils which is serially connected. A resonating capacitor is serially connected to the working coil part. A direct current power supplying part(10) outputs a direct current by receiving an alternating current power. An inverter part(20) sanctions a high-frequency current to the working coil part and the resonating capacitor. A switching controller(30) outputs a switching signal for controlling the drive of the inverter part. |
