Surge current prevention circuit of microwave oven

Details Surge current prevention circuit of microwave oven Surge current prevention circuit of microwave oven

1998-04-10

1999-11-30

Leung, Philip H.

Electric heating

Microwave heating

With control system

219702, 219757, H05B 668

Patent

active

059946849

ABSTRACT:
A surge current prevention circuit of a microwave oven, where a surge relay is turned on or turned off by a predetermined DC voltage supplied by rectification of a predetermined low voltage, such that cost of parts of the surge current prevention circuit becomes low to thereby reduce the manufacturing cost, and electricity can be decreased and operation of the microwave oven can be stabilized by the constant switching operation time of the surge relay.

REFERENCES:
patent: 3317699 (1967-05-01), Helfer
patent: 4375587 (1983-03-01), Perl
patent: 4481393 (1984-11-01), Ueda
patent: 4556773 (1985-12-01), Yoshiyuki et al.

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