The invention discloses a constant-current constant-voltage wireless charging system and wireless charging method based on an immittance network, and the system comprises a DC power supply which is used for providing a DC input voltage; the inverter is used for inverting the direct-current input voltage into high-frequency alternating voltage; a first immittance network; a first rectifier; a second rectifier; the input end of the second immittance network is connected with the output end of the second rectifier, and the output end of the second immittance network is connected between the inverter and the first immittance network module in series. The second rectifying circuit and the second immittance network with isolation are connected in parallel between the direct-current voltage and the inverter of the wireless charging system, the system can automatically realize early-stage constant-current and later-stage constant-voltage output, and the defects that a traditional constant-current and constant-voltage wireless charging system needs primary side and secondary side communication, a control circuit is complex and the cost is high are overcome. And control failure is easily caused. The method can be widely applied to the technical field of battery wireless charging.
本发明公开了一种基于导抗网络的恒流恒压无线充电系统及无线充电方法,其中系统包括:直流电源,用于提供直流输入电压;逆变器,用于将直流输入电压逆变为高频交变电压;第一导抗网络;第一整流器;第二整流器;带隔离的第二导抗网络,所述第二导抗网络的输入端连接所述第二整流器的输出端,所述第二导抗网络的输出端串联在所述逆变器和第一导抗网络模块之间。本发明于无线充电系统的直流电压和逆变器间并联一个第二整流电路和带隔离的第二导抗网络,系统可以自动地实现前期恒定电流后期恒定电压输出,克服了传统恒流、恒压无线充电系统需要原边和副边通信,控制电路复杂,容易造成控制失败的缺点。本发明可广泛应用于电池无线充电技术领域。
Constant-current constant-voltage wireless charging system and wireless charging method based on immittance network
基于导抗网络的恒流恒压无线充电系统及无线充电方法
2024-01-05
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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