Invention Grant
US08492999B2 System and method for controlling electrical power of LED and LED projector having the same
失效
具有相同功能的LED和LED投影机的电力控制系统及方法
- Patent Title: System and method for controlling electrical power of LED and LED projector having the same
- Patent Title (中): 具有相同功能的LED和LED投影机的电力控制系统及方法
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Application No.: US12725690Application Date: 2010-03-17
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Publication No.: US08492999B2Publication Date: 2013-07-23
- Inventor: Wen-Chin Cheng
- Applicant: Wen-Chin Cheng
- Applicant Address: TW Jhubei, Hsinchu County
- Assignee: Lumens Digital Optics Inc.
- Current Assignee: Lumens Digital Optics Inc.
- Current Assignee Address: TW Jhubei, Hsinchu County
- Agency: Volpe and Koenig, P.C.
- Priority: TW98133286A 20090930
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A method for controlling electrical power of light emission diodes (LED) is provided. The above method comprises steps of providing a supply voltage to the LED driver; providing a driving current to the LED by the LED driver; obtaining an operating voltage of the LED; and adjusting the supply voltage according to the operating voltage of the LED.
Public/Granted literature
- US20110074314A1 SYSTEM AND METHOD FOR CONTROLLING ELECTRICAL POWER OF LED AND LED PROJECTOR HAVING THE SAME Public/Granted day:2011-03-31
Information query
IPC分类:
