发明授权
- 专利标题: Method and apparatus for controlling dimming levels of LEDs
- 专利标题(中): 用于控制LED调光水平的方法和装置
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申请号: US13392530申请日: 2010-08-18
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公开(公告)号: US08629619B2公开(公告)日: 2014-01-14
- 发明人: Bernd Clauberg , Richard Greischar , Ameya Shrotriya
- 申请人: Bernd Clauberg , Richard Greischar , Ameya Shrotriya
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips N.V.
- 当前专利权人: Koninklijke Philips N.V.
- 当前专利权人地址: NL Eindhoven
- 代理商 Yuliya Mathis
- 国际申请: PCT/IB2010/053729 WO 20100818
- 国际公布: WO2011/024101 WO 20110303
- 主分类号: H05B37/00
- IPC分类号: H05B37/00
摘要:
Circuits useful in achieving efficient current control of LEDs based on a dimming control input are described. The circuits use a combination of PWM dimming and analog dimming to achieve a highly efficient LED driver over a wide range of dimming from near 0% to 100% light output.
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