Arrangement for limiting the temperature of a glass-ceramic cook

Details Arrangement for limiting the temperature of a glass-ceramic cook Arrangement for limiting the temperature of a glass-ceramic cook

1999-06-16

2000-09-26

Walberg, Teresa

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219464, H05B 302

Patent

active

061245763

ABSTRACT:
In an arrangement for limiting the temperature of a glass-ceramic cooking zone including a cooking zone control unit which controls the electric power supply to the heating elements of the cooking zones by way of an impulse width control arrangement with a cycling relay, an additional module with a signal processing unit is provided with temperature sensors for sensing the cooking zone temperatures so as to provide temperature signals to an evaluation circuit which compares the temperature values with a maximum temperature value and keeps the cycling relay in an open position when the temperature values reach the maximum temperature to thereby interrupt the power supply to the heating elements and the signal processing unit and opens a main power supply if the temperature still rises after having reached the maximum value.

REFERENCES:
patent: 4201184 (1980-05-01), Scheidler et al.
patent: 4544831 (1985-10-01), Bayer
patent: 4808798 (1989-02-01), Goessler et al.
patent: 5258736 (1993-11-01), Kristen et al.

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