发明名称 Light control system with PWM duty cycle control using current signal feedback
摘要 A light control system having a light emitting device to produce a pre-determined light output is disclosed. The light control system includes a power circuit in electrical communication with the light emitting device for transmitting an electrical current to the light emitting device for controlling the light output, a timing circuit in electrical communication with the power circuit, wherein the timing circuit generates a pre-determined timing sequence and regulates a duty cycle of the power circuit in response to the timing sequence, and a feedback circuit in communication with the light emitting devices and the timing circuit, wherein the feedback circuit is adapted to monitor an electrical characteristic of the light emitting devices and control the timing sequence of the timing circuit in response to the electrical characteristics of the light emitting devices.
申请公布号 US8120273(B2) 申请公布日期 2012.02.21
申请号 US20080259313 申请日期 2008.10.28
申请人 EDWARDS DANIEL ROBERT;VISTEON GLOBAL TECHNOLOGIES, INC. 发明人 EDWARDS DANIEL ROBERT
分类号 H05B37/02 主分类号 H05B37/02
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