-
公开(公告)号：EP3007521A2
公开(公告)日：2016-04-13
申请号：EP15174194.9
申请日：2015-06-29
申请人： O2Micro, Inc.
发明人： Lee, Sheng-Tai , Kuo, Ching-Chuan , Lin, Yung-Lin
CPC分类号： H05B37/02 , H05B33/0815
摘要： A driving circuit includes a power converter, a dimming controller and a current path coupled to the dimming controller. The power converter receives input power from a rectifier and provides output power to a light source. A power switch transfers power from an AC power source to the rectifier when the power switch is on. The dimming controller receives a switch monitoring signal indicative of the state of the power switch. An average current flowing through the light source has a first value if the power switch is on. The dimming controller is operable for adjusting the average current based on the switch monitoring signal. A current flows from the AC power source through the current path to ground when the power switch is off.
摘要翻译： 驱动电路包括功率转换器，调光控制器以及耦接至调光控制器的电流路径。 功率转换器从整流器接收输入功率并向光源提供输出功率。 电源开关打开时，电源开关将交流电源的电源传输至整流器。 调光控制器接收指示电源开关的状态的开关监控信号。 如果电源开关打开，流过光源的平均电流具有第一值。 调光控制器可操作用于基于开关监控信号调节平均电流。 当电源开关关闭时，电流从AC电源通过电流路径流向地。
-
公开(公告)号：EP3007521A3
公开(公告)日：2016-06-01
申请号：EP15174194.9
申请日：2015-06-29
申请人： O2Micro, Inc.
发明人： Lee, Sheng-Tai , Kuo, Ching-Chuan , Lin, Yung-Lin
CPC分类号： H05B37/02 , H05B33/0815
摘要： A driving circuit includes a power converter, a dimming controller and a current path coupled to the dimming controller. The power converter receives input power from a rectifier and provides output power to a light source. A power switch transfers power from an AC power source to the rectifier when the power switch is on. The dimming controller receives a switch monitoring signal indicative of the state of the power switch. An average current flowing through the light source has a first value if the power switch is on. The dimming controller is operable for adjusting the average current based on the switch monitoring signal. A current flows from the AC power source through the current path to ground when the power switch is off.
-
搜索结果
2 条记录 (耗时 0.007 秒)
