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    • 1. 发明申请
    • POWER FACTOR CONTROLLER BASED SINGLE-STAGE FLYBACK DRIVER AND LIGHT-EMITTING SYSTEM
    • 基于功率因数控制器的单级飞行驱动器和发光系统
    • WO2013102550A1
    • 2013-07-11
    • PCT/EP2012/075751
    • 2012-12-17
    • OSRAM GMBH
    • LIUFU, YeweiDAI, XueweiZHUANG, XiheZHANG, Quan
    • H05B33/08
    • H05B33/0815H02M1/42H02M1/4258H02M7/06Y02B70/126
    • It is provided a power factor controller based single-stage flyback driver and a light-emitting system. The driver includes: a primary-side circuit including a primary winding; a secondary- side circuit including a secondary winding; a power factor controller; a current feedback circuit; a voltage feedback circuit; and a feedback signal generation circuit. 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. By using the driver, overshoot at startup can be avoided.
    • 提供了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,其包括初级绕组; 包括次级绕组的次级侧电路; 功率因数控制器 电流反馈电路; 电压反馈电路; 和反馈信号发生电路。 在次级侧电路中,使用第一分压电阻器和第二分压电阻器对输出电压进行分压,以向电压反馈电路提供输出电压的采样,并且将第一分压电阻器或第二电压 分压电阻与具有容抗的补偿支路并联连接。 通过使用驱动器,可以避免启动时的过冲。