公开(公告)号：US20130049626A1

公开(公告)日：2013-02-28

申请号：US13585170

申请日：2012-08-14

申请人： Wanfeng ZHANG ,  InHwan Oh

发明人： Wanfeng ZHANG ,  InHwan Oh

IPC分类号： G05F1/12 ,  H05B37/00

CPC分类号： H05B33/0815

摘要： Aspects of the disclosure provide a circuit. The circuit includes a first switch, a second switch and a controller. The first switch is switched on and off to allow a boost circuit to transfer electric energy from an input power supply to a capacitor to generate an intermediate power supply having a higher voltage than the input power supply. The second switch is switched on and off to allow a buck circuit to provide a driving voltage based on the intermediate power supply to drive a load device, and to regulate a current to the load device. The controller is configured to provide a first signal to the first switch and a second signal to the second switch to switch on and off the first switch and the second switch.

摘要翻译： 本公开的方面提供电路。 电路包括第一开关，第二开关和控制器。 第一开关被接通和关断以允许升压电路将电能从输入电源传送到电容器以产生具有比输入电源更高的电压的中间电源。 第二开关被接通和关断以允许降压电路基于中间电源提供驱动电压以驱动负载装置，并调节到负载装置的电流。 控制器被配置为向第一开关提供第一信号，并将第二信号提供给第二开关以接通和断开第一开关和第二开关。

公开(公告)号：US20130020956A1

公开(公告)日：2013-01-24

申请号：US13548797

申请日：2012-07-13

申请人： Wanfeng ZHANG ,  Pantas Sutardja

发明人： Wanfeng ZHANG ,  Pantas Sutardja

IPC分类号： H05B37/02

CPC分类号： H05B33/086

摘要： New and useful methods and systems for providing lighting control are disclosed. For example, in an embodiment a lighting system includes one or more first solid state lights having a first aesthetic color, one or more second solid state lights having a second aesthetic color, the second aesthetic color having an appreciably longer wavelength than the first aesthetic color, and an amplitude correlation circuit configured to control a ratio of first light produced by the one or more first solid state lights to second light produced by the one or more second solid state lights as a function of a received dimming control signal.

摘要翻译： 公开了用于提供照明控制的新的有用的方法和系统。 例如，在一个实施例中，照明系统包括具有第一美学颜色的一个或多个第一固态光，具有第二美学颜色的一个或多个第二固态光，第二美学颜色具有比第一美学颜色明显更长的波长 以及幅度相关电路，被配置为控制由一个或多个第一固态光产生的第一光与由一个或多个第二固态光产生的第二光的比值作为接收到的调光控制信号的函数。

公开(公告)号：US20100079081A1

公开(公告)日：2010-04-01

申请号：US12547240

申请日：2009-08-25

申请人： Wanfeng ZHANG ,  Jianqing LIN ,  Shaoan DAI

发明人： Wanfeng ZHANG ,  Jianqing LIN ,  Shaoan DAI

IPC分类号： H05B41/36

CPC分类号： H05B33/0815 ,  H05B33/0851

摘要： Apparatuses, methods, systems, and circuits for light-emitting diode (LED) control are disclosed. In one embodiment, an LED control circuit can include a first pin receiving an input voltage supply; a second pin receiving a primary signal from a primary winding of a transformer coupled to the LED; a third pin coupled to a ground supply; and logic configured to estimate an output current and/or output voltage at the LED coupled to a secondary winding of the transformer from the input voltage supply and the primary signal.

摘要翻译： 公开了用于发光二极管（LED）控制的装置，方法，系统和电路。 在一个实施例中，LED控制电路可以包括接收输入电压源的第一引脚; 第二引脚从耦合到所述LED的变压器的初级绕组接收主信号; 耦合到地面电源的第三引脚; 以及被配置为从所述输入电压源和所述主信号估计耦合到所述变压器的次级绕组的所述LED处的输出电流和/或输出电压的逻辑。