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Wireless power receiving device, wireless power feeding device and wireless power feeding system, automatic tuning assist circuit
Wireless power receiving device, wireless power feeding device and wireless power feeding system, automatic tuning assist circuit
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机译:无线电力接收装置,无线电力馈送装置和无线电力馈送系统,自动调谐辅助电路
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摘要
An automatic tuning assist circuit is coupled in series with a transmission antenna. A first switch and a second switch are arranged in series between a first terminal and a second terminal of the automatic tuning assist circuit. Furthermore, a third switch and a fourth switch are arranged in series between the first terminal and the second terminal. A first auxiliary capacitor is arranged between a connection node that connects the first switch and the second switch and a connection node that connects the third switch and the fourth switch. A first control unit switches on and off the first switch through the fourth switch with the same frequency as that of the driving voltage, and with a given phase difference with respect to the driving voltage.
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