会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 25. 发明授权
    • Synchronous rectifier control circuit and method
    • 同步整流控制电路及方法
    • US07688602B2
    • 2010-03-30
    • US12111273
    • 2008-04-29
    • Jing Hu
    • Jing Hu
    • H02M3/335H02M5/42
    • H02M1/38H02M1/08H02M3/33592Y02B70/1475
    • Circuit and method for controlling a synchronous rectifier. A circuit for monitoring the drain to source voltage of an SR transistor in a secondary side circuit of a voltage converter is disclosed, having a circuit for generating a gate control circuit for the SR MOSFET; the circuit preventing subsequent gate control signals until a primary turn on detection signal is received. In another embodiment a circuit for generating the primary turn on detection signal is provided. A method for controlling an SR transistor is disclosed comprising monitoring the drain to source voltage of the SR MOSFET, generating a gate control output, and preventing subsequent gate control output signals until a primary turn on detection signal is received. In another method embodiment a method for generating the primary turn on detection signal is disclosed. An SR embodiment incorporating the control circuit embodiments is disclosed.
    • 用于控制同步整流器的电路和方法。 公开了一种用于监视电压转换器的次级侧电路中的SR晶体管的漏极到源极电压的电路,具有用于产生用于SR MOSFET的栅极控制电路的电路; 接收到直到主要接通检测信号为止的后续的栅极控制信号的电路。 在另一个实施例中,提供了用于产生初级导通检测信号的电路。 公开了一种用于控制SR晶体管的方法,其包括监视SR MOSFET的漏极 - 源极电压,产生栅极控制输出,并且防止后续的栅极控制输出信号,直到接收到初级导通检测信号。 在另一方法实施例中,公开了一种用于产生主导通检测信号的方法。 公开了结合了控制电路实施例的SR实施例。
    • 27. 发明授权
    • Power supply and method for regulating supply voltage
    • 电源和调节电源电压的方法
    • US07136292B1
    • 2006-11-14
    • US11192982
    • 2005-07-29
    • Tuck Meng ChanXiaowu GongJing HuMeng Kiat JeohKok Kee LimJunyang Luo
    • Tuck Meng ChanXiaowu GongJing HuMeng Kiat JeohKok Kee LimJunyang Luo
    • H02M3/335H02M7/44
    • H02M1/36H02M3/33523H02M2001/0032Y02B70/16
    • In a preferred embodiment, there is provided a switched mode power supply operable in start-up mode, normal mode and standby mode. The power supply may comprise a transformer having a primary winding on a primary side and a secondary winding on a secondary side, the primary winding being coupleable to a DC input voltage, and circuitry on the secondary side being arranged to provide a DC output voltage; and a power controller. The power controller may comprise a regulation controller for regulating a DC supply voltage on a supply line during standby mode, and a high voltage device coupled to the DC input voltage and the supply line. The current through the high voltage device to the supply line, during standby mode, may be controlled by the regulation controller. During standby mode, when the supply voltage is greater than or equal to a reference voltage, the current through the high voltage device to the supply line is substantially zero. When the supply voltage is less than the reference voltage, the greater the difference between the supply voltage and the reference voltage, the greater the current through the high voltage device to the supply line. In other preferred embodiments, there is also provided the power controller itself and a method for regulating a supply voltage during standby mode.
    • 在优选实施例中,提供了一种在启动模式,正常模式和待机模式下可操作的开关模式电源。 电源可以包括具有初级侧的初级绕组和次级侧的次级绕组的变压器,初级绕组可耦合到DC输入电压,并且次级侧上的电路布置成提供DC输出电压; 和电源控制器。 功率控制器可以包括用于在待机模式期间调节供电线路上的直流电源电压的调节控制器和耦合到直流输入电压和电源线的高压设备。 电流通过高压设备到电源线,在待机模式下,可由调节控制器控制。 在待机模式下,当电源电压大于或等于参考电压时,通过高压设备到电源线的电流基本为零。 当电源电压小于参考电压时,电源电压和参考电压之差越大,通过高压设备到电源线的电流越大。 在其他优选实施例中,还提供了功率控制器本身以及用于在待机模式期间调节电源电压的方法。