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

F - Mech Eng,Light,Heat,Weapons

24

C

309/82

F24C 7/04 (2006.01) H05B 1/02 (2006.01)

Patent

CA 1140972

9D-RG-13454 ABSTRACT OF THE DISCLOSURE A power control arrangement for controlling the power output of a resistive heating element of the type having a resistance, at least under start-up conditions, which draws excessive current when coupled across the supply intended for use with the element. 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 coupled and decoupled a power supply to the element. The switching action is selected to permit rapid heat up of the element without causing an unaccep- table current to flow and to prevent excessive cooling of the element after it reaches operating temperatures during steady state operation.

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