Light flicker eliminating circuit

Details Light flicker eliminating circuit Light flicker eliminating circuit

1981-04-21

1983-05-10

Dixon, Harold A.

Electric lamp and discharge devices: systems

Special application

Vehicle

315282, 315307, 315311, B60Q 126, G05F 100

Patent

active

043832016

ABSTRACT:
A voltage regulating circuit for eliminating flicker in lights fed by an electric generator driven by an internal combustion engine comprises a transformer having an input connected in series with the output of the generator and with the lights, and a control winding connected in a control circuit. The control circuit comprises a resistor and a transistor or solid state switch for shorting the resistor except during the power strokes of the engine when the engine speed and hence the voltage of the generator are cyclically higher. The voltage at the output of the transformer is thereby reduced during the power strokes of the engine to a value substantially equal to the voltage during exhaust strokes, thereby eliminating visible flicker in the lights.

REFERENCES:
patent: 3265930 (1966-08-01), Powell
patent: 3374396 (1968-03-01), Bell
patent: 4037148 (1977-07-01), Owens
patent: 4162428 (1979-07-01), Elms

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