Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1979-02-01
1981-08-04
Tolin, Gerald P.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219492, 219490, 219464, 323319, 361 37, 307 40, H05B 102
Patent
active
042824222
ABSTRACT:
A power control system is disclosed which controls the power output of one or more resistive heating elements in response to operator selected power level settings. Control of power to the elements is accomplished by generating a multi-bit binary word representing a selected power level, each bit being operative to control the application of power to the element during a different control interval. A control word is generated for each element and is updated once during every associated control period, a period comprising a number of intervals equal to the number of heating elements. The heating elements are of a type which draw a relatively high current during a transient heat-up period. The application of power to other elements is inhibited when one of the elements is having power applied thereto during its transient period. Power control for each element is staggered by testing a bit of different positional value in each word during any given interval.
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Baker Alfred L.
Payne Thomas R.
General Electric Company
Lacomis Bernard J.
Paschall M.
Reams Radford M.
Tolin Gerald P.
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