The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2011
Filed:
Dec. 29, 2008
Chih-ming Lai, Miao-Li Hsien, TW;
Chun-wei Wang, Miao-Li Hsien, TW;
Chih-Ming Lai, Miao-Li Hsien, TW;
Chun-Wei Wang, Miao-Li Hsien, TW;
Foxsemicon Integrated Technology, Inc., Chu-Nan, Miao-Li Hsien, TW;
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.