Hair curling appliance power control circuit

Details Hair curling appliance power control circuit Hair curling appliance power control circuit

1988-11-03

1990-11-06

Pellinen, A. D.

Electric heating

Heating devices

Tool or instrument

219489, 219492, H05B 102, A45D 104

Patent

active

049688707

ABSTRACT:
A power control circuit for supplying electrical power from a power source to an electrical appliance having a heating element, which circuit comprises an input for connection to a power source, an output for connection to a heating element, and supply elements between the input and the output for supplying power at a first, relatively higher level for a predetermined start-up time interval, and at a second, relatively lower level after the predetermined start-up time interval has elapsed.
After the start-up time interval, first timing elements brings into operation second timing elements which switches a silicon controlled rectifier off or on, via a NAND gate and transistor to supply power intermittently to the heating element.

REFERENCES:
patent: 3385957 (1968-05-01), Munson et al.
patent: 3827345 (1974-09-01), Willson
patent: 4085309 (1978-04-01), Godel et al.
patent: 4223498 (1980-11-01), Payne et al.
patent: 4348583 (1982-09-01), Bube et al.
patent: 4375205 (1983-03-01), Green
patent: 4642441 (1987-02-01), Kenyon
patent: 4673798 (1987-06-01), Contri et al.

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