Multi-functional high intensity discharge automobile headlamp

Details Multi-functional high intensity discharge automobile headlamp Multi-functional high intensity discharge automobile headlamp

2007-02-06

2007-02-06

Tran, Thuy V. (Department: 2821)

Electric lamp and discharge devices: systems

Special application

Vehicle

C315S308000

Reexamination Certificate

active

11195556

ABSTRACT:
A multi-functional high intensity discharge automobile headlamp features a circuit board installed within a system control box. The circuit board comprise a circuit for automatic detection and protection so that the voltages of the near lights and far lights can be determined and correctly switched, a circuit for DC/DC conversion connected to a far
ear light switch and a DC/AC voltage regulator so that the voltages necessary for the near or far lights can be supplied, a circuit for voltage regulation and high-voltage starting so that the high-voltage power can be suitably controlled, a circuit for near light high-voltage control, a circuit for far light high-voltage control and a DC/AC voltage regulator for providing a low-frequency, square-wave, AC signal for voltage regulation.

REFERENCES:
patent: 4686423 (1987-08-01), Eydt
patent: 5463287 (1995-10-01), Kurihara et al.
patent: 6049171 (2000-04-01), Stam et al.
patent: 6791273 (2004-09-01), Ito et al.
patent: 2003/0030380 (2003-02-01), Oda

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