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Parameter design method for wireless power and data transmission via the same inductive link

Wireless power transfer (WPT) which can realize electric power transmission over certain distances without physical contact has been an active research topic in recent years. Reliable data transmission between primary side and secondary side plays an essential role in a well-designed WPT system. In this paper, electric power and data signal through the same inductive link and the S/P compensation topology is adopted to compensate leakage inductance to increase transfer efficiency. On-off keying (OOK) has been applied to modulate power and data signal. Also, the demodulation circuit are analyzed in detail. By designing proper parameters, the impact of the data carrier on the power transmission can be minimized. The results of simulation verify the soundness of the theoretical analysis.