Invention Grant
- Patent Title: Circuits and methods for controlling dimming of a light source
- Patent Title (中): 用于控制光源调光的电路和方法
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Application No.: US12834672Application Date: 2010-07-12
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Publication No.: US08111017B2Publication Date: 2012-02-07
- Inventor: Yung Lin Lin , Ching-Chuan Kuo
- Applicant: Yung Lin Lin , Ching-Chuan Kuo
- Applicant Address: US CA Santa Clara
- Assignee: O2Micro, Inc
- Current Assignee: O2Micro, Inc
- Current Assignee Address: US CA Santa Clara
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A controller for controlling dimming of a light source includes a detection pin, an input signal pin, and a monitoring pin. The detection pin is operable for monitoring a rectified voltage and for detecting whether the rectified voltage comes from a TRIAC dimmer or an on/off switch dimmer. The input signal pin is operable for receiving an input signal indicative of the rectified voltage and the controller controls dimming of the light source according to the input signal if the rectified voltage comes from a TRIAC dimmer. The monitoring pin is operable for receiving a monitoring signal indicating an operation of the on/off switch dimmer and the controller controls dimming of the light source according to the monitoring signal if the rectified voltage comes from an on/off switch dimmer.
Public/Granted literature
- US20110140620A1 CIRCUITS AND METHODS FOR CONTROLLING DIMMING OF A LIGHT SOURCE Public/Granted day:2011-06-16
Information query
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