发明申请
US20130169177A1 Active Bleeder Circuit Triggering TRIAC in All Phase and Light Emitting Device Power Supply Circuit and TRIAC Control Method Using the Active Bleeder Circuit
有权
有源漏电电路触发TRIAC在所有相和发光装置电源电路和TRIAC控制方法使用主动式出血电路
- 专利标题： Active Bleeder Circuit Triggering TRIAC in All Phase and Light Emitting Device Power Supply Circuit and TRIAC Control Method Using the Active Bleeder Circuit
- 专利标题（中）： 有源漏电电路触发TRIAC在所有相和发光装置电源电路和TRIAC控制方法使用主动式出血电路
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申请号： US13728541申请日： 2012-12-27
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公开(公告)号： US20130169177A1公开(公告)日： 2013-07-04
- 发明人: Chia-Wei Liao , Leng-Nien Hsin , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
- 申请人： Chia-Wei Liao , Leng-Nien Hsin , Pei-Yuan Chen , Roland Van Roy , Jing-Meng Liu
- 申请人地址： TW Chupei City
- 专利权人： Richtek Technology Corporation
- 当前专利权人： Richtek Technology Corporation
- 当前专利权人地址： TW Chupei City
- 主分类号： G05F1/455
- IPC分类号： G05F1/455 ; G05F3/02 ; H05B37/02
摘要：
The present invention discloses an active bleeder circuit capable of triggering a tri-electrode AC switch (TRIAC) circuit in all phase. The active bleeder circuit receives a rectified signal having an OFF phase and an ON phase. The active bleeder includes: a detection circuit for generating a detection signal according to the rectified signal and accumulating the detection signal in the OFF phase of the rectified signal; and a current sinker circuit coupled to the detection circuit, for generates a latching current to trigger the TRIAC circuit by operating a switch when the detection signal exceeds a predetermined level. The present invention also discloses a light emitting device power supply circuit and a TRIAC control method using the active bleeder circuit.
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