Induction heating cooker operated at a constant oscillation freq

Details Induction heating cooker operated at a constant oscillation freq Induction heating cooker operated at a constant oscillation freq

1995-03-13

1996-11-05

Leung, Philip H.

Electric heating

Inductive heating

With heat exchange

219626, 219663, 219661, 219665, 363 97, H05B 608

Patent

active

055714382

ABSTRACT:
In a switching device of an induction heating cooker, an oppositely poled diode for conducting a reverse current is coupled across the collector-emitter portion of a switching element provided in the first switching device, and turn-ON operation of the switching devices does not OCCUR in normal operation of the DUTY FACTOR T.sub.2 /T.sub.1 .apprxeq.0.5.

REFERENCES:
patent: 5248866 (1993-09-01), Tanaka et al.
patent: 5353023 (1994-08-01), Geissler
patent: 5354971 (1994-10-01), Chen

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