H - Electricity – 05 – B
Patent
H - Electricity
05
B
309/69.3
H05B 1/02 (2006.01) H05B 3/74 (2006.01)
Patent
CA 1284810
TEMPERATURE LIMITING ARRANGEMENT FOR A GLASS-CERAMIC COOKTOP APPLIANCE ABSTRACT An improved power control system for a glass-ceramic cooktop appliance of the type having at least one radiant heating unit disposed beneath the glass-ceramic cooking surface, and a user actuable input keyboard to enable the user to select one of a plurality of power settings for the heating unit. The control system monitors the glass-ceramic temperature and the rate of change of the glass-ceramic temperature to detect abnormal thermal load conditions on the glass-ceramic cooking surface. Upon detection of an abnormal load condition, the power level applied to the heating unit is lowered as a function of the sensed glass-ceramic temperature, the temperature rate of change, and the user selected power setting, to limit the temperature of the glass-ceramic cooking surface so as to avoid damage by excessive temperatures resulting from the abnormal thermal load conditions on the cooking surface.
559189
Payne Thomas Roy
Welle Louis Anthony Jr.
Company General Electric
Craig Wilson And Company
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