The invention provides a wireless charging circuit, a control method thereof and electronic equipment, and relates to the field of wireless charging. In the wireless charging circuit, a primary side module is connected with a primary side inductor, the primary side inductor is coupled with a secondary side inductor, the secondary side inductor, a switching compensation module and a secondary side module are sequentially connected, the primary side module is externally connected with an input voltage, and the secondary side module and the switching compensation module are both connected with a load; the switching compensation module is used for switching a compensation mode according to the voltage of the load; when the voltage of the load is lower than a set threshold value, the switching compensation module is switched to a first compensation mode to realize constant current output; when the voltage of the load is larger than or equal to the threshold value, the switching compensation module is switched to a second compensation mode, and constant voltage output is achieved. In the application, the switching compensation module can be switched to different compensation modes according to the voltage condition of the load, and constant-current and constant-voltage wireless charging can be realized, so that the output power and transmission efficiency of electric energy transmission are improved.
本申请提供一种无线充电电路及其控制方法及电子设备,涉及无线充电领域。该无线充电电路中原边模块与原边电感连接,原边电感与副边电感耦合,副边电感、切换补偿模块以及副边模块依次连接,原边模块外接输入电压,副边模块、切换补偿模块均与负载连接;切换补偿模块用于根据负载的电压切换补偿模式;当负载的电压低于设定阈值时,切换补偿模块切换为第一补偿模式,实现恒流输出;当负载的电压大于等于阈值时,切换补偿模块切换为第二补偿模式,实现恒压输出。在本申请中,切换补偿模块可以根据负载的电压情况切换至不同的补偿模式,可以实现恒流恒压的无线充电,从而提高电能传输的输出功率和传输效率。
Wireless charging circuit, control method thereof and electronic equipment
一种无线充电电路及其控制方法及电子设备
2022-03-25
Patent
Electronic Resource
Chinese
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