The invention provides an anti-offset wireless charging system capable of autonomously switching constant-current and constant-voltage output. The anti-offset wireless charging system comprises a direct-current voltage source, an induction type electric energy transmission converter, an auxiliary loop and a battery load, the direct-current voltage source is connected with the induction type electric energy transmission converter and the auxiliary loop, and the induction type electric energy transmission converter is connected with the battery load; the induction type electric energy transmission converter comprises a primary side compensation coil Lf1 and a secondary side compensation coil Lf2; the auxiliary loop comprises an auxiliary coil La; the primary side compensation coil Lf1, the secondary side compensation coil Lf2 and the auxiliary coil La are bipolar DD coils. According to the invention, autonomous switching between the constant current output mode and the constant voltage output mode of the wireless charging system is realized, the sensitivity of the system to position offset is reduced, the anti-offset capability of the system is improved, and the output stability is ensured.
本发明提供了一种恒流恒压输出自主切换的抗偏移无线充电系统,包括直流电压源、感应式电能传输变换器、辅助回路以及电池负载;所述直流电压源连接所述感应式电能传输变换器和所述辅助回路,所述感应式电能传输变换器连接所述电池负载;所述感应式电能传输变换器包括初级侧补偿线圈Lf1和次级侧补偿线圈Lf2;所述辅助回路包括辅助线圈La;所述初级侧补偿线圈Lf1、所述次级侧补偿线圈Lf2以及所述辅助线圈La均为双极性DD线圈。本发明实现无线充电系统恒流和恒压输出模式的自主切换,同时降低系统对位置偏移的敏感度,提高系统的抗偏移能力,以保证输出的稳定性。
Anti-offset wireless charging system capable of autonomously switching constant-current and constant-voltage output
恒流恒压输出自主切换的抗偏移无线充电系统
2022-06-24
Patent
Electronic Resource
Chinese
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