A novel modulation and demodulation method for wireless power and data transmission

This paper proposes a novel wireless power and data transmission (WPDT) scheme to meet the communication requirements in a wireless power transfer system. The scheme borrows the idea of power line communication which modulates a high-frequency data carrier into fundamental AC electric wave. The scheme provides a number of appealing characteristics, such as shared magnetic linkage, low cost, small size, high power density, weak interference to power transfer and high data bit, as well as limited bit error rate. The cross interference between power transfer and data transmission is analyzed in depth. The parameter design methods concerning communication cells are given. Data transmission model is built as well to obtain optimum system performance. Eight binary data 10011010 are correctly transferred at a bit rate of 28.33 kbps, validating the feasibility of proposed WPDT scheme.