Circuit device for light-emitting diode driving and...

Details Circuit device for light-emitting diode driving and... Circuit device for light-emitting diode driving and...

2008-05-07

2010-06-01

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural regulators

C315S18500S, C315S226000, C315S307000

Reexamination Certificate

active

07728532

ABSTRACT:
A circuit device for an LED's driving and stabilizing system includes an AC/DC controllable driving voltage source, a feedback driving controller, an LED demodulation driving controller controllable driving voltage source, an external regulator, and an LED modular device. While various internal conditions or factors of the circuit device may be obtained through integrally or partially setting and computing, the circuit device may also be externally connected to an input signal source according to the characteristics of different attributive conditions to thereby achieve the function of automatic regulation, enabling the LED modular device connected thereto and having been used over a long period of time to have lowered brightness attenuation rate, reduced power loss, reduced heat generation, and accordingly, extended the LED's lifespan.

REFERENCES:
patent: 6577072 (2003-06-01), Saito et al.
patent: 2008/0018267 (2008-01-01), Arakawa et al.
patent: 2009/0195170 (2009-08-01), Pai et al.

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