Power control for appliance using high inrush current element

Details Power control for appliance using high inrush current element Power control for appliance using high inrush current element

1979-02-01

1982-06-08

Grimley, Arthur T.

Electric heating

Heating devices

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

219492, 219485, 219486, 219509, 323235, 323238, 3401463Z, 307 38, 307 40, H05B 102

Patent

active

043341470

ABSTRACT:
A power control arrangement for controlling the power output of a resistive heating element of the type having a fast thermal response time and a highly variable resistance with temperature. The power control arrangement includes a plurality of operator selectable power settings and an electronic switching system responsive to operator selection of these settings to rapidly couple and decouple a power supply to the element. The switching action is selected to permit rapid heat up of the element without causing an unacceptable current to flow and to prevent excessive cooling of the element after it reaches operating temperatures during steady state operation.

REFERENCES:
patent: 3541429 (1970-11-01), Martin
patent: 3878358 (1975-04-01), Barton et al.
patent: 3912905 (1975-10-01), Giler
patent: 3944790 (1976-03-01), Tamano et al.
patent: 4029937 (1977-06-01), Russell
patent: 4046991 (1977-09-01), Sefton et al.
patent: 4086466 (1978-04-01), Scharlack
patent: 4104715 (1978-08-01), Lawson, Jr.
patent: 4135122 (1979-01-01), Holmquist et al.
Inspec-"Single-Chip Microprocessor Rules the Roast", Electronics, vol. 49, No. 25, pp. 105-110, 12/9/1976.

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