公开(公告)号：US20150022113A1

公开(公告)日：2015-01-22

申请号：US14370492

申请日：2012-12-17

Applicant: OSRAM GmbH

Inventor： Yewei Liufu ,  Xuewei Dai ,  XiHe Zhuang ,  Quan Zhang

IPC: H05B33/08 ,  H02M1/42 ,  H02M7/06

CPC classification number: H05B33/0815 ,  H02M1/42 ,  H02M1/4258 ,  H02M7/06 ,  Y02B70/126

Abstract: Various embodiments relate to a power factor controller based single-stage flyback driver and a light-emitting system. The driver includes a primary-side circuit, a secondary-side circuit, a power factor controller, a current feedback circuit, a voltage feedback circuit, and a feedback signal generation circuit, wherein, in the secondary-side circuit, the output voltage is divided using a first voltage division resistor and a second voltage division resistor so as to provide the sampling of the output voltage to the voltage feedback circuit, and the first voltage division resistor or the second voltage division resistor is connected in parallel with a compensation branch having a capacitive reactance.

Abstract translation: 各种实施例涉及基于功率因数控制器的单级反激驱动器和发光系统。 驱动器包括初级侧电路，次级侧电路，功率因数控制器，电流反馈电路，电压反馈电路和反馈信号生成电路，其中，在次级侧电路中，输出电压为 使用第一分压电阻器和第二分压电阻器分压，以将输出电压的采样提供给电压反馈电路，并且第一分压电阻器或第二分压电阻器与具有 电容电抗。

公开(公告)号：US20150097493A1

公开(公告)日：2015-04-09

申请号：US14403196

申请日：2013-05-23

Applicant: OSRAM GmbH

Inventor： Daxin Lin ,  Hui Jia ,  Yaping Liu ,  SiXiong Zeng ,  Middel Tjaco ,  Xuewei Dai ,  Yewei Liufu

IPC: H02M5/293 ,  H05B33/08 ,  H02M1/08 ,  H02M7/06

CPC classification number: H02M5/293 ,  H02H9/041 ,  H02M1/081 ,  H02M7/06 ,  H02M2005/2932 ,  H05B33/0809 ,  H05B33/0815

Abstract: Various embodiments relate to a load driver and a luminaire including the load driver. The load driver may include a voltage limiting circuit including a first polar capacitor and a second polar capacitor connected in inverse series, which are connected in parallel respectively with first and second current limiting elements, where the first and second current limiting elements limit the direction in which current flows so that current flows through different polar capacitors in positive and negative halves of a cycle of an alternating-current power supply.

Abstract translation: 各种实施例涉及负载驱动器和包括负载驱动器的照明器。 负载驱动器可以包括电压限制电路，其包括反向串联连接的第一极性电容器和第二极性电容器，它们分别与第一和第二限流元件并联连接，其中第一和第二限流元件将方向限制在 电流流动，使得电流流过交流电源的一个周期的正和负两半的不同极性电容器。

公开(公告)号：US09356532B2

公开(公告)日：2016-05-31

申请号：US14403196

申请日：2013-05-23

Applicant: OSRAM GmbH

Inventor： Daxin Lin ,  Hui Jia ,  Yaping Liu ,  SiXiong Zeng ,  Middel Tjaco ,  Xuewei Dai ,  Yewei Liufu

IPC: H05B37/02 ,  H02M5/293 ,  H02H9/04 ,  H05B33/08 ,  H02M1/08 ,  H02M7/06

CPC classification number: H02M5/293 ,  H02H9/041 ,  H02M1/081 ,  H02M7/06 ,  H02M2005/2932 ,  H05B33/0809 ,  H05B33/0815

Abstract: Various embodiments relate to a load driver and a luminaire including the load driver. The load driver may include a voltage limiting circuit including a first polar capacitor and a second polar capacitor connected in inverse series, which are connected in parallel respectively with first and second current limiting elements, where the first and second current limiting elements limit the direction in which current flows so that current flows through different polar capacitors in positive and negative halves of a cycle of an alternating-current power supply.

Abstract translation: 各种实施例涉及负载驱动器和包括负载驱动器的照明器。 负载驱动器可以包括电压限制电路，其包括反向串联连接的第一极性电容器和第二极性电容器，它们分别与第一和第二限流元件并联连接，其中第一和第二限流元件将方向限制在 电流流动，使得电流流过交流电源的一个周期的正和负两半的不同极性电容器。