发明授权
- 专利标题： End of lamp life protection circuit with bi-level detections for the electronic ballast and method thereof
- 专利标题（中）： 电子镇流器双层检测的灯寿命保护电路结束及其方法
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申请号： US12980449申请日： 2010-12-29
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公开(公告)号： US08378592B2公开(公告)日： 2013-02-19
- 发明人: Ching-Ho Chou , Yung-Chuan Lu , Edy Chandra , Chao-Wei Tsai
- 申请人： Ching-Ho Chou , Yung-Chuan Lu , Edy Chandra , Chao-Wei Tsai
- 申请人地址： TW Taoyuan Hsien
- 专利权人： Delta Electronics, Inc.
- 当前专利权人： Delta Electronics, Inc.
- 当前专利权人地址： TW Taoyuan Hsien
- 代理机构： Gottlieb, Rackman & Reisman, P.C.
- 优先权： TW98146628A 20091231
- 主分类号： H05B37/02
- IPC分类号： H05B37/02
摘要：
The configurations of an end of lamp life protection circuit for a ballast and a method thereof are provided in the present invention. The proposed circuit includes a voltage-dividing circuit receiving an input voltage and outputting a first and a second divided voltages and a switch apparatus raising the first divided voltage when the second divided voltage is less than a first pre-determined threshold value and turning off the ballast when the first divided voltage is higher than a second pre-determined threshold value.
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