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    • 1. 发明申请
    • AMPLITUDE MODULATION CIRCUIT AND NON-CONTACT POWER FEEDING DEVICE
    • 振幅调制电路和非接触式电源馈电装置
    • US20140300197A1
    • 2014-10-09
    • US14242066
    • 2014-04-01
    • Funai Electric Co., Ltd.
    • Naoyuki Wakabayashi
    • H03C1/10H01F38/14
    • H03C1/10H01F38/14H02J7/025H02J50/12H03C7/02
    • An amplitude modulation circuit includes a resonance circuit powered by an oscillator and comprising a power transmission coil with a first coil portion, a second coil portion, a modulation coil, and a resonance condenser; and a switch that switches between a state where the first coil portion and the second coil portion are connected in series and a state where the first coil portion and the modulation coil are connected in series according to a level switching timing of transmission data and a timing when a coil current in the resonance circuit becomes zero. The combined inductance of the first coil portion and the second coil portion connected in series and a combined inductance of the first coil portion and the modulation coil connected in series are equal.
    • 振幅调制电路包括由振荡器供电并包括具有第一线圈部分的电力传输线圈,第二线圈部分,调制线圈和谐振电容器的谐振电路; 以及在第一线圈部分和第二线圈部分串联连接的状态之间切换的开关以及第一线圈部分和调制线圈根据发送数据的电平切换定时和时序连接的状态 当谐振电路中的线圈电流变为零时。 串联连接的第一线圈部分和第二线圈部分的组合电感以及串联连接的第一线圈部分和调制线圈的组合电感相等。