Invention Grant
- Patent Title: Luminance adjusting circuit
- Patent Title (中): 亮度调节电路
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Application No.: US13308565Application Date: 2011-12-01
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Publication No.: US08482210B2Publication Date: 2013-07-09
- Inventor: Zu-Pei He , Ruey-Shyang You , Han-Che Wang , Kuan-Hong Hsieh
- Applicant: Zu-Pei He , Ruey-Shyang You , Han-Che Wang , Kuan-Hong Hsieh
- Applicant Address: CN Shenzhen
- Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.
- Current Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Altis Law Group, Inc.
- Priority: CN201110329507 20111026
- Main IPC: H05B37/02
- IPC: H05B37/02

Abstract:
A luminance adjusting circuit includes an LED module, a switch module and a processing unit. A table equating luminance levels and average current values is pre-stored. The processing unit includes a judging and executing module and a signal generating module. The judging and executing module achieves a desired luminance level according to trigger signals generated by a button. The signal generating module produces timing signals to turn on and turn off the switch module periodically, thereby achieving an average current value to adjust the luminance level of the LED module to the desired level.
Public/Granted literature
- US20130106302A1 LUMINANCE ADJUSTING CIRCUIT Public/Granted day:2013-05-02
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