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10 条记录 (耗时 0.015 秒)

    Control of multi-level supply stage
    2.
    发明授权
    Control of multi-level supply stage 有权
    多级供应阶段的控制

    公开(公告)号：US09350246B2

    公开(公告)日：2016-05-24

    申请号：US14669929

    申请日：2015-03-26

    申请人： SNAPTRACK, INC.

    发明人： Martin Paul Wilson

    IPC分类号： H02M3/158 ,  H02M1/00

    CPC分类号： H02M3/158 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/009 ,  Y02B70/1466

    摘要： A buck-boost converter comprising: a voltage source; an inductor, wherein a first terminal of the inductor is switchably connected to the voltage source; and a plurality of capacitors switchably connected to a second terminal of the inductor, wherein a respective plurality of output voltages are formed across the plurality of capacitors, further comprising: an error determination means, for determining an error in each of the plurality of voltages, an inner control loop adapted to switchably connect one of the plurality of capacitors to the second terminal of the inductor in dependence on the determined errors; and an outer control loop adapted to control switching between buck mode and boost mode in dependence upon the determined errors.

    摘要翻译： 一种降压 - 升压转换器，包括：电压源; 电感器，其中所述电感器的第一端子可切换地连接到所述电压源; 以及多个电容器，其可切换地连接到所述电感器的第二端子，其中在所述多个电容器之间形成相应的多个输出电压，还包括：误差确定装置，用于确定所述多个电压中的每一个中的误差， 内部控制回路，其适于根据所确定的误差将多个电容器中的一个电容器可切换地连接到电感器的第二端子; 以及外部控制回路，其适于根据确定的误差来控制降压模式和升压模式之间的切换。

    Control of cross-over point
    8.
    发明授权
    Control of cross-over point 有权
    控制交叉点

    公开(公告)号：US09548700B2

    公开(公告)日：2017-01-17

    申请号：US14584589

    申请日：2014-12-29

    申请人： SNAPTRACK, INC.

    发明人： Gerard Wimpenny ,  Martin Paul Wilson

    IPC分类号： H03F1/02 ,  H03F3/26 ,  G05F1/66

    CPC分类号： H03F1/0205 ,  G05F1/66 ,  H03F1/0222 ,  H03F1/025 ,  H03F3/265 ,  H03F2200/102 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2200/537 ,  H03F2200/541

    摘要： There is provided an output stage comprising: a phase splitter for receiving an input signal and for generating first and second drive signals of opposite phase in dependence thereon; a DC offset signal generator for generating a DC offset signal; an adder for adding the DC offset signal to the first drive signal to provide a first modified drive signal; a subtractor for subtracting the DC offset signal from the second drive signal to provide a second modified drive signal; a first drive transistor associated with a first power supply voltage, for generating a first output signal in dependence on the first modified drive signal; a second drive transistor associated with a second power supply voltage, for generating a second output signal in dependence on the second modified drive signal; and a combiner for combining the first and second output signals to generate a phase combined output signal.

    摘要翻译： 提供了一种输出级，包括：相位分离器，用于接收输入信号并根据其产生相位相位的第一和第二驱动信号; 用于产生DC偏移信号的DC偏移信号发生器; 加法器，用于将DC偏移信号与第一驱动信号相加以提供第一修改的驱动信号; 减法器，用于从第二驱动信号减去DC偏移信号，以提供第二修改的驱动信号; 与第一电源电压相关联的第一驱动晶体管，用于根据第一修改的驱动信号产生第一输出信号; 与第二电源电压相关联的第二驱动晶体管，用于根据第二修改的驱动信号产生第二输出信号; 以及用于组合第一和第二输出信号以产生相位合成输出信号的组合器。

    High efficiency amplification
    10.
    发明授权
    High efficiency amplification 有权
    高效放大

    公开(公告)号：US09190958B2

    公开(公告)日：2015-11-17

    申请号：US13941127

    申请日：2013-07-12

    申请人： SNAPTRACK, INC.

    发明人： Martin Paul Wilson

    IPC分类号： H03F1/00 ,  H03F1/02 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21

    CPC分类号： H03F1/0222 ,  H03F1/00 ,  H03F1/02 ,  H03F1/025 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/331 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/511

    摘要： A radio frequency amplification stage comprising: an amplifier for receiving an input signal to be amplified and a power supply voltage; and a power supply voltage stage for supplying said power supply voltage, comprising: means for providing a reference signal representing the envelope of the input signal; means for selecting one of a plurality of supply voltage levels in dependence on the reference signal; and means for generating an adjusted selected power supply voltage, comprising an ac amplifier for amplifying a difference between the reference signal and one of the selected supply voltage level or the adjusted selected supply voltage level, and a summer for summing the amplified difference with the selected supply voltage to thereby generate the adjusted supply voltage.

    摘要翻译： 一种射频放大级，包括：放大器，用于接收待放大的输入信号和电源电压; 以及用于提供所述电源电压的电源电压级，包括：用于提供表示所述输入信号的包络的参考信号的装置; 用于根据参考信号选择多个电源电压电平中的一个的装置; 以及用于产生经调整的所选择的电源电压的装置，包括用于放大参考信号与所选择的电源电压电平或所调整的所选电源电压电平之一之间的差的交流放大器，以及用于将所放大的差与所选择的电源电压相加的加法器 供给电压，从而生成调整后的电源电压。