Electric heating – Metal heating – Of cylinders
Patent
1990-12-18
1992-10-27
Reynolds, Bruce A.
Electric heating
Metal heating
Of cylinders
219 1055C, 219 1055D, 219 1055R, H05B 664
Patent
active
051591650
ABSTRACT:
The present invention relates to a micro-wave oven having a barbecue function, and more particularly to a heating device capable of not only the barbecuing but also broiling a fish by controlling the motor-driving duration and driving the motor, which is used for rotating a barbecue, with a single relay. The control circuit of the present invention comprises a latch circuit A which latches a voltage selection for a barbecue, a latch circuit B which latches a voltage selection for broiling a fish, a heater driving circuit E which drives a heater H according to outputs of said latch circuits A and B, an oscillation circuit C which controls the motor-driving duration according to an output of said latch circuit B, a controller for a motor-driver F which controls said motor according to an output of said oscillation circuit C, and a motor-driver circuit D which drives said motor according to a control output from said controller for the motor-driver F.
REFERENCES:
patent: 4858095 (1989-08-01), Narita et al.
patent: 4900885 (1990-02-01), Inumada
patent: 4904837 (1990-02-01), Low et al.
patent: 4933527 (1990-06-01), Edamura
patent: 4958055 (1990-09-01), Shim
Casella Anthony J.
Goldstar Co. Ltd.
Hespos Gerald E.
Hoang Tu
Reynolds Bruce A.
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