Study of an IPT System Based on Configurable Charging Current and Charging Voltage

In order to improve the flexibility of configuring charging voltage and charging current for wireless charging systems, the paper is based on a combination of LCL-LCL/S and T-type compensation networks, adding two switches and a T-type compensation network to the secondary side circuit. The interconversion of the In addition, the solution has the following advantages: firstly, the input of reactive power is avoided in the process of constant current and constant voltage charging and the communication between the primary and secondary sides is eliminated, secondly a wireless charging IPT system can be configured for different charging currents and charging voltages and finally the output current or output voltage can be fixed unchanged to realise a wireless charging IPT system for multiple charging devices with constant current or constant voltage output configuration. In order to verify the feasibility of this scheme, an IPT system with four different charging voltages and charging currents is built. The experimental results show that the scheme can be flexibly configured with different charging currents and voltages and has good constant current and constant voltage output characteristics.