Abstract
With the development of power electronics, wireless power transfer (WPT) technology has been widely used in many fields because of its convenience and safety. In this paper, a multi-frequency wireless power and information transfer system with common inductive coils is proposed by using the multi-frequency programmed pulse width modulation (MFPWM) technology, which applies double modules to realize the power and data transmission with a single full-bridge inverter. The performances of the power and data transfer, as well as the principles of the control strategy are analyzed in detail. It shows that the power and data can share a pair of common couple coil and a single inverter. A simulation model is designed to verify the effectiveness of the proposed method and structure. The system demonstrates stability and feasibility under this control strategy.
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