Driving circuit for a microwave oven

Details Driving circuit for a microwave oven Driving circuit for a microwave oven

1992-05-12

1994-02-01

Leung, Philip H.

Electric heating

Microwave heating

With control system

323251, 323301, 219760, H05B 668

Patent

active

052834115

ABSTRACT:
A microwave oven driving circuit for stably driving a microwave oven wherein a certain output of a magnetron can be generated by controlling a microcomputer. First and second comparing portions control a voltage supplied from a power supply portion and an output of the magnetron to increase in stages so as to obtain a normal output of the magnetron. Also, the output of the magnetron is gradually decreased without being too abrupt even if the output of the generating portion must be decreased as cooking is completed, thereby improving durability and cooking efficiency of the microwave oven.

REFERENCES:
patent: 4774451 (1988-09-01), Mehnert et al.
patent: 4835353 (1989-05-01), Smith, et al.
patent: 4866589 (1989-09-01), Satoo et al.
patent: 4896093 (1990-01-01), Spires
patent: 4967051 (1990-10-01), Maehara et al.
patent: 4990733 (1991-02-01), Joelsson et al.
patent: 4992637 (1991-02-01), Ishiyama
patent: 5003141 (1991-03-01), Braunisch et al.

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