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1. 发明公开

EP3079446A1 DIMMING CIRCUIT 无效
标题翻译： DIMMERSCHALTUNG
公开(公告)号：EP3079446A1
公开(公告)日：2016-10-12
申请号：EP16160817.9
申请日：2016-03-17
申请人： Lextar Electronics Corporation
发明人： CHANG, Chun-Jong , CHEN, Po-Shen , HUANG, Jhao-Cyuan , YEH, Chien-Nan
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H03K5/08 , H05B33/0812
摘要： A dimming circuit is disclosed herein. The dimming circuit includes a control voltage receiving module and a driving module. The control voltage receiving module is configured to output a reference voltage according to a control voltage. The driving module is electrically connected to the control voltage receiving module, in which the driving module includes a driving transistor, a first transistor and a feedback circuit. The driving transistor is configured to provide a driving current to drive a lighting module. The first transistor is configured to control the driving transistor with feedback according to the reference voltage. The feedback circuit is electrically connected between the driving transistor and the first transistor and configured to determine the operating state of the first transistor according to the driving current.
摘要翻译：本文公开了一种调光电路。调光电路包括控制电压接收模块和驱动模块。控制电压接收模块被配置为根据控制电压输出参考电压。驱动模块电连接到控制电压接收模块，其中驱动模块包括驱动晶体管，第一晶体管和反馈电路。驱动晶体管被配置为提供驱动电流以驱动照明模块。第一晶体管被配置为根据参考电压来控制具有反馈的驱动晶体管。反馈电路电连接在驱动晶体管和第一晶体管之间，并被配置为根据驱动电流确定第一晶体管的工作状态。

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