Invention Grant
- Patent Title: Control method capable of preventing flicker effect and light emitting device thereof
- Patent Title (中): 能够防止闪烁效果的控制方法及其发光装置
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Application No.: US12625576Application Date: 2009-11-25
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Publication No.: US08169156B2Publication Date: 2012-05-01
- Inventor: Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
- Applicant: Kuo-Ching Hsu , Tsung-Hau Chang , Chin-Hsun Hsu
- Applicant Address: TW Hsinchu Science Park, Hsin-Chu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsinchu Science Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW98127570A 20090817
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A control method capable of preventing flicker effect for a light source module includes detecting variation situations of a driving current passing through the light source module to generate a current detection signal, adjusting a variable reference voltage according to the current detection signal, obtaining a feedback voltage from the light source module, generating a voltage control signal according to the feedback voltage and the variable reference voltage, and generating an output voltage according to the voltage control signal to drive the light source module.
Public/Granted literature
- US20110037410A1 Control Method Capable of Preventing Flicker Effect and Light Emitting Device Therefore Public/Granted day:2011-02-17
Information query
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