Dimmer circuit with input voltage compensated soft start circuit

Electricity: power supply or regulation systems – External or operator controlled – Phase controlled switching using electronic tube or a three...

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315194, 323300, 323324, 323326, G05F 502

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active

046805362

ABSTRACT:
A circuit for controlling the initiation and operation of a phase control circuit employed in voltage regulation to a load such as dimming lights. The circuit uses a power semi-conductor which is triggered by a "walk-in" circuit. The "walk-in" circuit includes a regulator diode across a diode bridge which stabilizes the output of the load, such as a level of lighting.

REFERENCES:
patent: 3244965 (1966-04-01), Gutzwiller
patent: 3331013 (1967-07-01), Cunningham
patent: 3872374 (1975-03-01), Rasmussen
"Speed Control Compensates for Abnormal Line Voltage," reprint from Aug. 1970 issue of EDN.

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