Light emitting diode illuminating device

Details Light emitting diode illuminating device Light emitting diode illuminating device

2008-12-29

2011-11-22

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

C315S309000, C315S360000

Reexamination Certificate

active

08063574

ABSTRACT:
An exemplary light emitting diode illuminating device includes a light emitting diode (LED) light source, a heat dissipating device, a temperature detector, a power supply and a pulse width modulator. The heat dissipating device is thermally connected to the LED light source. The temperature detector is thermally connected to the LED light source and configured for detecting the working temperature of the LED light source. The power supply is electrically connected to the pulse width modulator for providing electric power to the pulse width modulator. The pulse width modulator has a direct current (DC) output mode and a pulse output mode.

REFERENCES:
patent: 7344279 (2008-03-01), Mueller et al.
patent: 7538499 (2009-05-01), Ashdown
patent: 7731417 (2010-06-01), Kumagai
patent: 7741825 (2010-06-01), Lenz
patent: 2007/0105212 (2007-05-01), Oldham et al.
patent: 2745312 (2005-12-01), None
patent: 101001491 (2007-07-01), None

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