Load control circuit

Details Load control circuit Load control circuit

2007-02-20

2007-02-20

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S247000, C315S224000, C315S307000, C315S312000

Reexamination Certificate

active

11006190

ABSTRACT:
A load control circuit enabling miniaturization of a brightness adjustment system. The load control circuit includes a variable resistor for generating a reference potential. A first duty signal generation circuit connected to the variable resistor controls a LED based on a reference potential. A second duty signal generation circuit connected to the variable resistor generates a second duty signal controls a lamp. The first duty signal generation circuit is configured so that the first duty signal changes differently from the second duty signal.

REFERENCES:
patent: 5821700 (1998-10-01), Malvaso
patent: 6926423 (2005-08-01), Bucher et al.
patent: 2003/0178951 (2003-09-01), Park et al.
patent: 2003/0234762 (2003-12-01), Nakatsuka et al.

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