Invention Application
US20110156592A1 END OF LAMP LIFE PROTECTION CIRCUIT WITH BI-LEVEL DETECTIONS FOR THE ELECTRONIC BALLAST AND METHOD THEREOF
有权
用于电子镇流器的双层级检测的灯寿命保护电路结束及其方法
- Patent Title: END OF LAMP LIFE PROTECTION CIRCUIT WITH BI-LEVEL DETECTIONS FOR THE ELECTRONIC BALLAST AND METHOD THEREOF
- Patent Title (中): 用于电子镇流器的双层级检测的灯寿命保护电路结束及其方法
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Application No.: US12980449Application Date: 2010-12-29
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Publication No.: US20110156592A1Publication Date: 2011-06-30
- Inventor: Ching-Ho Chou , Yung-Chuan Lu , Edy Chandra , Chao-Wei Tsai
- Applicant: Ching-Ho Chou , Yung-Chuan Lu , Edy Chandra , Chao-Wei Tsai
- Applicant Address: TW Taoyuan
- Assignee: Delta Electronics, Inc.
- Current Assignee: Delta Electronics, Inc.
- Current Assignee Address: TW Taoyuan
- Priority: TW98146628 20091231
- Main IPC: H05B37/03
- IPC: H05B37/03
Abstract:
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.
Public/Granted literature
- US08378592B2 End of lamp life protection circuit with bi-level detections for the electronic ballast and method thereof Public/Granted day:2013-02-19
Information query
