High efficiency power controller for solid state lighting

Details High efficiency power controller for solid state lighting High efficiency power controller for solid state lighting

2007-06-11

2009-12-01

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

With power factor control device

C315S18500S, C315S224000, C315S291000, C315S312000

Reexamination Certificate

active

07626342

ABSTRACT:
A high efficiency power controller comprising of a driver circuit to convert to direct current (DC) voltage from alternating current (AC) voltage is used for drive solid state lighting (SSL) including light emitting diode (LED) and organic light emitting diode (OLED). The driver circuit is comprises of an AC-DC limited current unit, sensor processor, signal generator, feedback controller and SSL lamp module, which converts the AC supply voltage to a DC voltage by using a negative feedback current and voltage limiting circuit for powering SSL. The invented driver circuit operates at high efficiency with low power consumption. The current and voltage feedback circuit mode from current, voltage, light intensity and thermal temperature for SSL possesses reliable DC power driver without any flash during lighting.

REFERENCES:
patent: 5343122 (1994-08-01), Sugimori et al.
patent: 6181086 (2001-01-01), Katyl et al.
patent: 2008/0224636 (2008-09-01), Melanson
patent: 2008/0232141 (2008-09-01), Artusi et al.

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