发明名称 |
LIGHT POWER COMPENSATION DEVICE, LIGHT POWER COMPENSATION CIRCUIT, AND DETECTING MODULE |
摘要 |
Alight power compensation circuit includes a current source to be electrically coupled to a temperature-detecting light-emitting device and providing a working current for the temperature-detecting light-emitting device, a detector unit operable to detect a forward bias voltage across the temperature-detecting light-emitting device and providing a detector voltage proportional to the forward bias voltage, a compensation voltage converting module converting the detector voltage into a compensation voltage which has a negative relation to change in the detector voltage, and a driving module converting the compensation voltage into a driving current which is proportional to the compensation voltage and which drives operation of a controlled light-emitting device.
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申请公布号 |
US2012268015(A1) |
申请公布日期 |
2012.10.25 |
申请号 |
US201113213719 |
申请日期 |
2011.08.19 |
申请人 |
SUN TAI-PING;WANG CHIA-HUNG;LIN HUEI-JYUN;NATIONAL CHI NAN UNIVERSITY |
发明人 |
SUN TAI-PING;WANG CHIA-HUNG;LIN HUEI-JYUN |
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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