发明申请
- 专利标题： LIGHTING SYSTEM ELECTRONIC BALLAST OR DRIVER WITH SHUNT CIRCUIT FOR LIGHTING CONTROL QUIESCENT CURRENT
- 专利标题（中）： 照明系统电子镇流器或驱动器与分流电路照明控制电流
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申请号： US12915759申请日： 2010-10-29
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公开(公告)号： US20120104975A1公开(公告)日： 2012-05-03
- 发明人: Peter Vigh , Mate Krejcarek , Gabor Schmidt , Jacint Gergely
- 申请人： Peter Vigh , Mate Krejcarek , Gabor Schmidt , Jacint Gergely
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 主分类号： H05B37/02
- IPC分类号： H05B37/02
摘要：
Ballasts and LED drivers are presented for powering at least one light source, in which a shunt circuit provides a high impedance to allow operation of the light source when the AC input power exceeds a power threshold value, and provides a low impedance when the AC input power is below the power threshold value to prevent an output power stage from providing power to the light source.