The invention discloses a wireless charging system capable of realizing constant current-constant voltage and power expansion, and relates to the field of wireless charging. The invention aims to solve the problems that in the whole charging process of a battery, the equivalent resistance change of the battery is large, and constant-current and constant-voltage output is difficult to realize. In the constant-current charging mode, the double receivers can effectively share energy transmitted by the transmitter, the current stress of the diode on each receiver is reduced, and finally, the double receivers output in parallel, so that the output current is increased, the power level is improved, and zero-voltage switching can be realized. In a constant-voltage charging mode, only one receiver serves as output, the other receiver serves as compensation of the output side coil, a zero phase angle can be achieved, and the power transmission capacity is improved.
一种可实现恒流‑恒压及功率扩展的无线充电系统,涉及无线充电领域。本发明是为了解决在电池整个充电的过程中,电池的等效电阻变化大,难以实现恒流和恒压输出的问题。本发明恒流充电模式时双接收机能有效地分担发射机传输来的能量,减小了每个接收机上二极管的电流应力,而且最后双接收机以并联的形式输出,从而增大输出电流,提高功率水平,并且能实现零电压开关。恒压充电模式时,只有一个接收机作为输出,另一个接收机作为输出侧线圈的补偿,能实现零相角,提高了功率传输能力。
Wireless charging system capable of realizing constant current-constant voltage and power expansion
一种可实现恒流-恒压及功率扩展的无线充电系统
2024-12-06
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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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