
基本信息:
- 专利标题: 一种用于控制LED单元的光输出的反馈控制系统
- 专利标题(英):A feedback control system for controlling the light output of a led unit
- 申请号:CN200580039585.7 申请日:2005-11-14
- 公开(公告)号:CN101061753A 公开(公告)日:2007-10-24
- 发明人: R·库特 , E·J·梅杰
- 申请人: 皇家飞利浦电子股份有限公司
- 申请人地址: 荷兰艾恩德霍芬
- 专利权人: 皇家飞利浦电子股份有限公司
- 当前专利权人: 皇家飞利浦电子股份有限公司
- 当前专利权人地址: 荷兰艾恩德霍芬
- 代理机构: 中国专利代理(香港)有限公司
- 代理人: 龚海军; 陈景峻
- 优先权: 04105921.3 2004.11.19 EP
- 国际申请: PCT/IB2005/053745 2005.11.14
- 国际公布: WO2006/054230 EN 2006.05.26
- 进入国家日期: 2007-05-18
- 主分类号: H05B33/08
- IPC分类号: H05B33/08
The present invention relates to a control system (13) and method for controlling the light output of an emitting unit (11) having at least one LED (15) and emitting light of at least one colour. The control system (13) comprises a feedback based on a detection unit (19) detecting the light output of the emitting unit (11), a detection pulse generator (27), a suppression unit (23) suppressing environmental light interferences in detected light, and a control unit (21) for controlling the light output of the emitting unit on basis of a comparison between a reference signal representing a desired light output of the emitting unit and an output signal of the suppression unit. The detection pulse generator (27) generates detection pulses a-periodically. Thus, an a-periodicity is introduced into the feedback processing of the light output. This provides a possibility by means of conventional suppression algorithms to eliminate or reduce interfering environmental light, particularly pulsed light.
公开/授权文献:
- CN100488329C 一种用于控制LED单元的光输出的反馈控制系统 公开/授权日:2009-05-13
IPC结构图谱:
H | 电学 |
--H05 | 其他类目不包含的电技术 |
----H05B | 电热;其他类目不包含的电照明 |
------H05B33/00 | 电致发光光源 |
--------H05B33/02 | .零部件 |
----------H05B33/08 | ..并非适用于一种特殊应用的电路装置 |