H - Electricity – 05 – B
Patent
H - Electricity
05
B
341/32, 309/83
H05B 1/02 (2006.01) F24C 7/00 (2006.01) F24C 15/10 (2006.01) G05D 23/19 (2006.01) H01H 57/00 (2006.01)
Patent
CA 1334538
A control system for regulating electrical power input to the resistive heating elements of an electric heat- ing apparatus, including domestic cooking appliances, is provided which employs at least one piezoceramic relay device. The electrical power is applied with the piezoceramic relay device responsive to control signals and with the control circuitry being directly and ohmically connected to the power source. In one embodiment, the control means employs individual piezoceramic relay devices for power regulation to the individual heating elements while in different embodiments a single piezoceramic relay device regulates power input to a pair of the heating elements. A method of operating the controlled apparatus in such manner and an apparatus having such control means are also disclosed.
596658
Alley Robert Philbrick
Harnden John Davis Jr.
Kornrumpf William Paul
Company General Electric
Eckersley Raymond A.
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