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This paper is to present an effective wireless power transfer (WPT) system to recharge the battery of electric unmanned aerial vehicle (e-UAV). The proposed system can generate an approximately even magnetic field which allows the e-UAV to get enough energy at different points above the charging pad. Also, based on the design, the proposed system is capable to transmit enough power at a high efficiency...
To avoid to be damaged when class D power amplifier chip load is short circuit, the paper presents a self-recovering over current protection circuit in chip. The over current protection circuit would active used to shut down the output buffer when two output pins short-circuit to power supply, short-circuit to ground or short-circuit to each other. Different from previously reported scheme, the scheme...
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