Magnetic resonant wireless power transmission is a new type of technology for conducting non-radiative

mid-range power transmission using the near magnetic field based on resonant coupling phenomena. Many research findings were achieved through calculating the coupling voltage and power with the sinusoidal alternating current as the exciting source. The pulse current can also produce alternating magnetic field which induces the alternating current

and wireless power transmission excited by the pulse current has its own features. The circuit response process and the mechanism of resonant coupling excited by the pulse current are discussed

and the conclusion that the coupling process using pulse excitation is in essence also the sine wave coupling is drawn. With this transmission method

higher power can be transmitted to the load compared with sinusoidal excitation. The transfer effects of pulse waves with different pulse widths are compared by experiment and high-frequency resonant coils can be controlled by low frequency pulse signals

by which even more effective wireless power transfer can be achieved. This work is supported by National Natural Science Foundation of China (No. 51207150) and Beijing Natural Science Foundation (No. 4144090).