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首页> 外文期刊>International review of electrical engineering >Capacitive Coupling Wireless Power Transfer Circuit with a Compensated L for High Voltage Gain and Soft Switching
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Capacitive Coupling Wireless Power Transfer Circuit with a Compensated L for High Voltage Gain and Soft Switching

机译:具有补偿L的电容耦合无线功率传输电路,用于高压增益和软开关

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摘要

A Capacitive coupling wireless power transfer (WPT) circuit with a compensated L is proposed. Two pairs of small area metal electrodes are used to produce two coupling capacitors and a resonant inductor is employed for the capacitive coupling wireless power transfer. By adding one parallel inductor to the series resonant circuit, an output voltage gain greater than 1 can be achieved. In addition, zero voltage switching (ZVS), zero current switching (ZCS), and higher output voltage can be obtained using the compensated inductor even at high frequency operation. A 6.3W Capacitive coupling WPT system is implemented with an approximately 700pF coupling capacitance by two 108cm~2 copper plates and 6.78MHz operation for charging a small power electric device. The experimental results confirm the ZVS and ZCS operation, higher efficiency, and larger output voltage.
机译:提出了一种具有补偿L的电容耦合无线功率传输(WPT)电路。两对小面积金属电极用于产生两个耦合电容器,而谐振电感器用于电容耦合无线功率传输。通过在串联谐振电路中增加一个并联电感器,可以获得大于1的输出电压增益。此外,即使在高频操作下,使用补偿电感器也可以获得零电压开关(ZVS),零电流开关(ZCS)和更高的输出电压。 6.3W电容耦合WPT系统由两个108cm〜2铜板和约6.78MHz工作频率实现约700pF的耦合电容,可为小功率电子设备充电。实验结果证实了ZVS和ZCS工作,更高的效率和更大的输出电压。

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