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1. 发明授权

US09318911B2 Self-adaptive input power charger and method for controlling input current of charger 有权
标题翻译：自适应输入电源充电器和控制充电器输入电流的方法
公开(公告)号：US09318911B2
公开(公告)日：2016-04-19
申请号：US14073052
申请日：2013-11-06
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Jie Yao , Wei Chen , Chen Zhao , Shuai Cheng
IPC分类号： H02J7/00
CPC分类号： H02J7/0081 , H02J7/0083 , H02J7/0093
摘要： Disclosed herein are circuits and methods for limiting a charger input current. In one embodiment, a self-adaptive input power charger for charging a battery, can include: (i) a power stage circuit configured to receive an external input power supply that supplies an input voltage and an input current to the charger; (ii) a comparison circuit configured to generate a comparison result indicating that the input power supply has entered a current-limiting state when the input voltage is less than a first reference voltage; (iii) a current regulation circuit configured to generate a first control signal in response to the comparison result; and (iv) a driving control circuit configured to limit the input current by the first control signal.
摘要翻译：这里公开了限制充电器输入电流的电路和方法。在一个实施例中，一种用于对电池充电的自适应输入电力充电器可以包括：（i）功率级电路，被配置为接收向充电器提供输入电压和输入电流的外部输入电源; （ii）比较电路，被配置为当所述输入电压小于第一参考电压时产生指示所述输入电源已经进入限流状态的比较结果; （iii）电流调节电路，被配置为响应于比较结果产生第一控制信号; 以及（iv）驱动控制电路，被配置为通过第一控制信号来限制输入电流。

2. 发明授权

US09271366B2 Dimmable LED driver and driving method 有权
公开(公告)号：US09271366B2
公开(公告)日：2016-02-23
申请号：US14843860
申请日：2015-09-02
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Xiaodong Huang
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0851 , H05B33/0815 , H05B33/0845 , Y02B20/347 , Y02B20/348
摘要： Disclosed are dimmable LED driver circuits and methods. A dimmable LED driver can include: an SCR, an electronic transformer, and a rectifier bridge to convert an AC voltage to a DC voltage signal; a power stage circuit that receives the DC voltage signal, and outputs a constant current to drive an LED load, where the power stage circuit includes first and second power stage circuits, the first power stage circuit receiving the DC voltage signal, and generating a first output voltage to the second power stage; and an input current control circuit that receives an input current of the first power stage circuit and the first output voltage, and generates a first control signal to control the input current as a square wave signal during an on time of the SCR, and the input current is substantially zero during an off time of the SCR.

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