发明名称 |
DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES |
摘要 |
A driving circuit includes a power converter, a dimming controller and a current path coupled to the dimming controller. The power converter receives input power from a rectifier and provides output power to a light source. A power switch transfers power from an AC power source to the rectifier when the power switch is on. The dimming controller receives a switch monitoring signal indicative of the state of the power switch. An average current flowing through the light source has a first value if the power switch is on. The dimming controller is operable for adjusting the average current based on the switch monitoring signal. A current flows from the AC power source through the current path to ground when the power switch is off. |
申请公布号 |
EP3007521(A2) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20150174194 |
申请日期 |
2015.06.29 |
申请人 |
O2MICRO, INC. |
发明人 |
LEE, SHENG-TAI;KUO, CHING-CHUAN;LIN, YUNG-LIN |
分类号 |
H05B37/02;H05B33/08 |
主分类号 |
H05B37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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