发明授权
US08432106B2 Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED)
失效
微控制器优化的脉冲宽度调制(PWM)驱动的发光二极管(LED)
- 专利标题: Microcontroller-optimized pulse-width modulation (PWM) drive of a light-emitting diode (LED)
- 专利标题(中): 微控制器优化的脉冲宽度调制(PWM)驱动的发光二极管(LED)
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申请号: US12937936申请日: 2009-04-06
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公开(公告)号: US08432106B2公开(公告)日: 2013-04-30
- 发明人: Adam Horvath , Hans Hoschopf
- 申请人: Adam Horvath , Hans Hoschopf
- 申请人地址: AU Jennersdorf
- 专利权人: LedonLighting Jennersdorf GmbH
- 当前专利权人: LedonLighting Jennersdorf GmbH
- 当前专利权人地址: AU Jennersdorf
- 代理机构: Marshall, Gerstein & Borun LLP
- 优先权: DE102008018808 20080415
- 国际申请: PCT/EP2009/002518 WO 20090406
- 国际公布: WO2009/127340 WO 20091022
- 主分类号: H05B41/00
- IPC分类号: H05B41/00 ; G05F37/02
摘要:
A method for operating a controlled illumination apparatus, the illumination apparatus comprising at least one pulse-width modulation (PWM)-controlled LED, the method comprising carrying out a duty cycle sweep of the PWM signal driving the LED while sensing at least one parameter indicative of the power consumption of the LED to compute a curve reflecting the duty-cycle dependency of the power efficiency of the LED.
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