Invention Grant
US08643297B2 Control circuit and control method for dimming LED lighting circuit
有权
LED照明电路调光控制电路及控制方法
- Patent Title: Control circuit and control method for dimming LED lighting circuit
- Patent Title (中): LED照明电路调光控制电路及控制方法
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Application No.: US13223660Application Date: 2011-09-01
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Publication No.: US08643297B2Publication Date: 2014-02-04
- Inventor: Ta-Yung Yang , Li Lin , Chi-Yin Lo , Kuo-Hsien Huang , Hung-Chun Chen
- Applicant: Ta-Yung Yang , Li Lin , Chi-Yin Lo , Kuo-Hsien Huang , Hung-Chun Chen
- Applicant Address: TW Taipei Hsien
- Assignee: System General Corporation
- Current Assignee: System General Corporation
- Current Assignee Address: TW Taipei Hsien
- Agency: Bacon & Thomas, PLLC
- Main IPC: H05B37/02
- IPC: H05B37/02
Abstract:
The present invention provides a control circuit for dimming LED lighting. The control circuit comprises a voltage divider, a controller and an adaptive bleeder. The voltage divider receives an input voltage from an input terminal to generate a dimming signal. The controller generates a switching signal in response to the dimming signal. The controller further generates a control signal in response to the input voltage. The adaptive bleeder receives the control signal and draws a bleeder current from the input terminal in response to the control signal.
Public/Granted literature
- US20120242252A1 CONTROL CIRCUIT AND CONTROL METHOD FOR DIMMING LED LIGHTING CIRCUIT Public/Granted day:2012-09-27
Information query
