发明名称 |
Light Emitting Device Power Supply Circuit, and Light Emitting Device Driver Circuit and Control Method Thereof |
摘要 |
The present invention discloses a light emitting device power supply circuit, a light emitting device driver circuit and a control method thereof. The light emitting device driver circuit is coupled to a tri-electrode AC switch (TRIAC) dimmer circuit, and it controls the brightness of a light emitting device circuit according a rectified dimming signal. The light emitting device driver circuit includes a power stage circuit and a light emitting device control circuit. The light emitting device control circuit generates a switch control signal. The power stage circuit operates at least one power switch thereof according to the switch control signal to generate a latching current for firing the TRIAC dimmer circuit, and the latching current is inputted to the light emitting device circuit.
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申请公布号 |
US2012242238(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201213421733 |
申请日期 |
2012.03.15 |
申请人 |
CHEN PEI-YUAN;LIAO CHIA-WEI;LIU JING-MENG;HSIU LENG-NIEN;RICHTEK TECHNOLOGY CORPORATION |
发明人 |
CHEN PEI-YUAN;LIAO CHIA-WEI;LIU JING-MENG;HSIU LENG-NIEN |
分类号 |
H05B37/02 |
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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