Induction heating cooking apparatus and method for operating...

Details Induction heating cooking apparatus and method for operating... Induction heating cooking apparatus and method for operating...

2007-02-13

2007-02-13

Leung, Philip H. (Department: 3742)

Electric heating

Inductive heating

With heat exchange

C219S664000, C219S665000, C363S078000

Reexamination Certificate

active

11257072

ABSTRACT:
An induction-heating cooking apparatus and a method for operating the same are disclosed. Upon receiving a low-voltage signal in a high-output level state, the apparatus controls an output signal to allow an inverter to be operated only in a ZVS (Zero Voltage Switching) area. If an input voltage applied to a circuit is a low voltage, the apparatus compensates for the input voltage using a smaller one between a blocking voltage and an output control signal generated from the microprocessor, thereby limiting a compensation component. Therefore, the apparatus prevents the occurrence of a power loss caused by an excessive switching operation, and also prevents a switch from receiving a high instantaneous current, resulting in increased endurance of cooking appliances.

REFERENCES:
patent: 2 062 985 (1981-05-01), None
patent: 2 162 384 (1986-01-01), None
patent: 2 181 030 (1987-04-01), None
patent: 4-282595 (1992-10-01), None

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