Design and Development of an LC Compensated WPT System with Multiple
Constant Voltage Outputs Function
Abstract
As the increasing demands for the constant voltage (CV) charging of
multiple loads, this article proposes an LC compensated wireless power
transfer (WPT) system with multiple CV outputs function. The proposed
WPT system can achieve multiple voltage outputs without decoupling
method. Each voltage output channel is composed of a compensation
capacitor and a compensation inductor connected in series. By
configuring different compensation inductors and capacitors for each
output channel, it can achieve different CV outputs without affecting
the output voltage of other output channels. In addition, the system can
achieve near-zero phase angle (ZPA) and zero-voltage switching (ZVS)
operations, which can improve system efficiency. Finally, the
correctness and rationality of the proposed WPT system is verified by
built an experimental prototype with two CV output channels.