The invention discloses an adjustable wireless charging system which is divided into a transmitting end and a receiving end, the transmitting end is provided with a transmitting end resonance network,the transmitting end resonance network at least comprises a transmitting coil and a first capacitor, the receiving end is provided with a receiving end resonance network, and the receiving end resonance network at least comprises a receiving coil and a second capacitor. The system further comprises correction devices which are respectively a transmitting end correction capacitor, a receiving endcorrection capacitor, a transmitting end correction inductor and a receiving end correction inductor; the transmitting end correction capacitor is connected with the first capacitor in parallel and provides a variable capacitance value for the transmitting end; the receiving end correction capacitor is connected with the second capacitor in parallel and provides a variable capacitance value for the receiving end; the transmitting end correction inductor is connected with the transmitting coil in series and provides a variable inductance value for the transmitting end; the receiving end correction inductor is connected with the receiving coil in series and provides a variable inductance value for the receiving end; the driving frequency of an input source of the transmitting end resonance network, the resonance frequency of the transmitting end resonance network and the resonance frequency of the receiving end resonance network are all 79kHz-90kHz. According to the adjustable wireless charging system, the total capacitance value or the total inductance value of the transmitting end resonance network and the receiving end resonance network is adjusted through the correction devices,so that the resonance stability is ensured, the interference of an environmental electromagnetic field is reduced, and the maximum efficiency transmission and the minimum interference noise are obtained.
本发明公开了可调无线充电系统,分为发射端和接收端,在发射端具有发射端谐振网络,发射端谐振网络至少包含发射线圈以及第一电容,在接收端具有接收端谐振网络,接收端谐振网络至少包括接收线圈以及第二电容,还包括多个修正器件,分别为发射端修正电容、接收端修正电容、发射端修正电感和接收端修正电感;发射端修正电容与第一电容并联,并向发射端提供可变的电容值;接收端修正电容与第二电容并联,并向接收端提供可变的电容值;发射端修正电感与发射线圈串联,并向发射端提供可变的电感值;接收端修正电感与接收线圈串联,并向接收端提供可变的电感值;发射端谐振网络的输入源的驱动频率、发射端谐振网络的谐振频率、接收端谐振网络的谐振频率,均在79kHz‑90kHz。本发明的可调无线充电系统,通过修正器件,调整发射端谐振网络和接收端谐振网络的总电容值或总电感值,从而保证谐振的稳定,减少环境电磁场的干扰,获得最大的效率传输和最低的干扰噪声。
Adjustable wireless charging system
可调无线充电系统
2020-12-18
Patent
Electronic Resource
Chinese
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