Electric lamp and discharge devices: systems – Pulsating or a.c. supply
Reexamination Certificate
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.
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Lai Chih-Ming
Wang Chun-Wei
Altis Law Group, Inc.
Foxsemicon Integrated Technology, Inc.
Tran Thuy Vinh
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