Abstract
Synchronous transmission of signal is as important as wireless power transmission. In order to solve the problem of mutual interference between power and signal in the wireless synchronous transmission system of power and signal with shared channel, this paper proposes a new electric field-coupled power and signal transfer system using common mode and differential mode separation circuits. Based on the principle of transmitting power in common mode and transmitting signal in differential mode, this paper establishes the circuit models of power transmission channel and signal transmission channel, and analyzes the working performance of the system in detail according to the circuit theory. At the same time, the design principles of the system parameters are given in this paper. Finally, simulation and experiment verify the feasibility of the proposed system, and the effect of plate capacitance change on system performance is studied.
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