发明名称 |
Optical and temperature feedbacks to control display brightness |
摘要 |
An illumination control circuit allows a user to set a desired brightness level and maintains the desired brightness level over temperature and life of a light source. The illumination control circuit uses a dual feedback loop with both optical and thermal feedbacks. The optical feedback loop controls power to the light source during normal operations. The thermal feedback loop overrides the optical feedback loop when the temperature of the light source becomes excessive.
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申请公布号 |
US7183727(B2) |
申请公布日期 |
2007.02.27 |
申请号 |
US20040937889 |
申请日期 |
2004.09.09 |
申请人 |
MICROSEMI CORPORATION |
发明人 |
FERGUSON BRUCE R.;HENRY GEORGE C.;HOLLIDAY ROGER |
分类号 |
H05B37/02;G09G3/36;H05B41/285;H05B41/38;H05B41/392 |
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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