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    • 5. 发明申请
    • INDUCTIVELY COUPLED POWER TRANSFER RECEIVER
    • 电感耦合功率传输接收机
    • US20140306545A1
    • 2014-10-16
    • US14129754
    • 2012-07-06
    • Daniel RobertsonKunal BhargavaAiguo Hu
    • Daniel RobertsonKunal BhargavaAiguo Hu
    • H02J5/00
    • H02J50/12H01F38/14H02J5/005
    • An inductively coupled power transfer receiver including a tunable circuit and a power supply circuit. The tunable circuit includes a power receiving coil in series with a first capacitance and a first variable impedance connected in parallel with the power receiving coil. The variable impedance includes at least one impedance element and one or more semiconductor devices for controlling the effective impedance of the first variable impedance. The first variable impedance may be a second capacitance in series with the first semiconductor device; an inductance in parallel with the first semiconductor device; a second capacitance in parallel with the first semiconductor device; or a capacitance and an inductor in parallel with the first semiconductor device. The power supply circuit includes a power control circuit which provides a control signal to the first variable impedance based on an output voltage produced by the power supply circuit.
    • 一种电感耦合功率传输接收器,包括可调谐电路和电源电路。 可调电路包括与第一电容串联的受电线圈和与电力接收线圈并联连接的第一可变阻抗。 可变阻抗包括用于控制第一可变阻抗的有效阻抗的至少一个阻抗元件和一个或多个半导体器件。 第一可变阻抗可以是与第一半导体器件串联的第二电容; 与第一半导体器件并联的电感; 与所述第一半导体器件并联的第二电容; 或与第一半导体器件并联的电容和电感器。 电源电路包括功率控制电路,其基于由电源电路产生的输出电压向第一可变阻抗提供控制信号。