The invention discloses a novel LCC-S compensation wireless charging system for charging an unmanned aerial vehicle. The system accords with the charging characteristic of constant current and constant voltage of an airborne battery in the unmanned aerial vehicle, and the structure of the system is a combination of a clamping circuit formed by two diodes D1 and D2 and a special LCC-S compensation wireless charging system. Under the assistance of the clamping circuit, the system can automatically complete switching from a constant current mode to a constant voltage mode. In the initial stage of charging, the two diodes D1 and D2 in the clamping circuit are both in a reverse bias state, the branch where the LR is located is disconnected, and the system carries out constant current output through an SS structure; as charging proceeds, when the two diodes D1 and D2 in the clamping circuit bear forward voltage and are switched on, the system performs constant voltage output through a special LCC-S structure. The system is simple in structure, a communication auxiliary circuit, a charge state detection circuit and an open circuit protection circuit are not needed, the system works at a fixed frequency, and the problem of low system stability caused by a frequency bifurcation phenomenon is avoided.
本发明公开了一种针对无人机充电的新型LCC‑S补偿的无线充电系统。该系统符合无人机中机载电池先恒流后恒压的充电特性,其结构为由两个二极管D1和D2构成的钳位电路和特殊的LCC‑S补偿无线充电系统的组合。在钳位电路的辅助下,系统可自动完成恒流模式到恒压模式的切换。在充电初期,钳位电路中的两个二极管D1和D2均处于反向偏置状态,LR所在支路被断路,系统以SS结构进行恒流输出;随着充电的进行,当钳位电路中的两个二极管D1和D2均承受正向电压而导通时,系统以特殊的LCC‑S结构进行恒压输出。该系统结构简单,无需通信辅助电路、荷电状态检测电路和开路保护电路,且系统以定频工作,避免了频率分叉现象造成系统稳定性低的问题。
Novel LCC-S compensation wireless charging system for unmanned aerial vehicle charging
一种针对无人机充电的新型LCC-S补偿的无线充电系统
2024-01-09
Patent
Elektronische Ressource
Chinesisch
Unmanned aerial vehicle wireless charging system and charging method
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