Induction heating cooking device

Details Induction heating cooking device Induction heating cooking device

2011-07-05

2011-07-05

Van, Quang T (Department: 3742)

Electric heating

Inductive heating

With power supply system

C219S662000, C219S663000

Reexamination Certificate

active

07973268

ABSTRACT:
An induction heating cooking device has an inverter including a resonant circuit, and a heating output control part. The resonant circuit has a resonant capacitor and a heating coil that is magnetically coupled to a load. The inverter has first and second switching elements. The heating output control part performs control by inverting the rate values of the driving periods of the first and second switching elements. The driving of the inverter is thus controlled so that substantially the same heating output is obtained to average the losses of the first and second switching elements.

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K. Izaki et al., “New Constant-Frequency Variable Powered Quasiresonant Inverter Topology Using Soft-Switched Type IGBTS for Induction-Heated Cooking Appliance with Active Power Filter,” EPE '95: 6thEuropean conference on Power Electronics and Applications. Sevilla. Sep. 19-21, 1995, Brussels, EPE Assoc. B, vol. 2, Sep. 19, 1995, pp. 2.129-2.134.
International Search Report issued Jan. 25, 2005 in the International (PCT) Application of which the parent of the present application is the U.S. National Stage.

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