To provide an inverter type electromagnetic induction heating device capable of efficiently supplying an expected power to an object to be heated of various kinds of materials.
The electromagnetic induction heating device is provided with a resonant load circuit 10 including the object to be heated, a power supply circuit 1 generating a direct current voltage, and an inverter supplying power to the resonant load circuit 10 by converting the direct current voltage generated at the power circuit 1 into an alternating current voltage, of which the inverter has upper and lower arms 2 composed of at least two switching elements 3 serially connected. The power supply circuit 1 generates not less than two kinds of direct current voltages different from each other, and switches output voltages according to the quality of the materials of the object to be heated.
COPYRIGHT: (C)2005,JPO&NCIPI
Reihiko Kanoda
Junpei Uruno
Shincho Yasuo
Masayuki Isogai
Sugawara Hideaki
Masami Nakamura
| JP11260542A | ||||
| JP2000341981A | ||||
| JP6269161A | ||||
| JP2000133488A | ||||
| JP2002112555A |