Control system for a microwave oven, a microwave oven using such

Details Control system for a microwave oven, a microwave oven using such Control system for a microwave oven, a microwave oven using such

1994-10-31

1997-08-05

Leung, Philip H.

Electric heating

Microwave heating

With control system

219702, 219710, 219760, 323301, H05B 668

Patent

active

056539061

ABSTRACT:
A control system for a microwave oven having a magnetron unit, a microwave oven using such a control system and methods of making the same are provided, the system being adapted to interconnect a power source to a transformer unit of the magnetron unit to operate the same, the system comprising a unit for determining the actual voltage level of said power source to be utilized at that time and being adapted to interconnect the power source to a particular tap of the transformer unit if the determined power level is above a certain value and to interconnect the power source to another tap of the transformer unit if the determined power level is below the certain value.

REFERENCES:
patent: 4733158 (1988-03-01), Marchione et al.
patent: 4843201 (1989-06-01), Smith et al.
patent: 4843301 (1989-06-01), Belanger
patent: 4939331 (1990-07-01), Berggren et al.
patent: 5001318 (1991-03-01), Noda
patent: 5075617 (1991-12-01), Farr
patent: 5212360 (1993-05-01), Carlson
patent: 5274208 (1993-12-01), Noda
patent: 5347109 (1994-09-01), Nakabayashi et al.
Prior known control system for a microwave oven having only one microprocessor for the display and power modules thereof.
Prior known control system for a microwave oven having a plurality of different voltage taps on the magnetron means thereof.
Prior known control system for a microwave oven having line means to interconnect an electrical power source to the transformer means of the magnetron means thereof.

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