Lighting control circuit for head lamps

Details Lighting control circuit for head lamps Lighting control circuit for head lamps

1991-02-06

1991-12-24

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Special application

Vehicle

315 83, 307 108, B60Q 102

Patent

active

050755935

ABSTRACT:
A lighting control circuit for head lamp has three relays with coils. When a lighting switch is turned on, high beams of right and left head lamps are lit. When the dimmer switch is turned on, low beams of right and left head lamps are lit. When the lighting switch is turned off, right and left head lamps are lit by low voltage which is equal to 50% of a rated voltage so as to improve the durability of the head lamps.

REFERENCES:
patent: 3391301 (1968-07-01), Poznik
patent: 3644886 (1972-02-01), Sabaroff
patent: 3723721 (1973-03-01), Weber
patent: 4713584 (1987-12-01), Jean
patent: 4841199 (1989-06-01), Irie
patent: 4934769 (1990-06-01), Kurozu et al.
patent: 4949012 (1990-08-01), Irick et al.
patent: 5030884 (1991-07-01), Roussey et al.

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