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    • 16. 发明申请
    • POWER SUPPLY FOR A LOAD CONTROL
    • 用于负载控制的电源
    • US20080246451A1
    • 2008-10-09
    • US12140648
    • 2008-06-17
    • Aaron DobbinsRussell WeightmanDavid J. PerreaultJames P. SteinerChen Ming Wu
    • Aaron DobbinsRussell WeightmanDavid J. PerreaultJames P. SteinerChen Ming Wu
    • G05F1/455
    • H02M5/257H02M5/2573H02M2001/0006H05B39/08
    • A power supply adapted to be coupled in series electrical connection between an AC voltage source and an electrical load for generating a DC voltage, the power supply comprising an energy storage capacitor, the DC voltage produced across the capacitor; a charging circuit adapted to be coupled in series electrical connection between the source and the load and to conduct a load current from the source to the load, the charging circuit coupled to the energy storage capacitor for charging the energy storage capacitor; a controllably conductive device coupled in parallel electrical connection with the charging circuit and having a control input for rendering the controllably conductive device conductive, the controllably conductive device adapted to carry the load current from the source to the load when the controllably conductive device is conductive; and a triggering circuit coupled to the control input of the controllably conductive device for causing the controllably conductive device to become conductive when the energy storage capacitor has charged to a desired maximum value; wherein the charging circuit is adapted to conduct the load current from the source to the load when the controllably conductive device is non-conductive, the charging circuit imposing a low voltage drop relative to the peak value of an AC voltage of the AC voltage source, such that substantially all of the AC voltage is available to the load during the time when the controllably conductive device is non-conductive.
    • 一种适于在AC电压源和用于产生DC电压的电负载之间串联连接的电源,所述电源包括储能电容器,所述电容器两端产生的直流电压; 充电电路,其适于在所述源极和所述负载之间串联电连接并且将负载电流从所述源极传递到所述负载,所述充电电路耦合到所述储能电容器,用于对所述储能电容器充电; 可控导电装置,其与所述充电电路并联电连接并且具有用于使所述可控制导电装置导电的控制输入,所述可控制导电装置适于在所述可控导电装置导电时将所述负载电流从所述源运载到所述负载; 以及触发电路,其耦合到所述可控导电装置的控制输入端,用于当所述储能电容器已经充电至期望的最大值时使所述可控导电器件导通; 其中所述充电电路适于在所述可控导电器件不导通时将来自所述源极的负载电流传导到所述负载,所述充电电路相对于所述AC电压源的AC电压的峰值施加低电压降, 使得在可控导电器件不导电的时间内基本上所有的交流电压都可用于负载。
    • 19. 发明授权
    • Asymmetric multilevel outphasing architecture for RF amplifiers
    • 射频放大器的非对称多电平外相结构
    • US08026763B2
    • 2011-09-27
    • US12615696
    • 2009-11-10
    • Joel L. DawsonDavid J. PerreaultSungWon ChungPhilip GodoyEverest Huang
    • Joel L. DawsonDavid J. PerreaultSungWon ChungPhilip GodoyEverest Huang
    • H03F3/68
    • H03F3/217H03F1/0244H03F1/0277H03F1/0294H03F3/2176H03F3/602
    • A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
    • 射频(RF)电路包括被配置为产生多个电压的电源,多个功率放大器,每个具有RF输出端口和电源输入端口,开关网络具有耦合到所述多个输入端口的多个输入端口 电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口,其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压,至少 开关网络输出端口电压中的两个能够是多个电压中的不同的电压,以及RF功率组合器电路,其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。