An examination of impedance matching in receiving side of wireless power transfer system operating at 13.56MHz

Abstract

This paper proposes the impedance matching circuit which keeps input impedance constant by using boost converter and resonant rectifier. In the simulation, the results confirmed characteristic of this circuit and achieved high power factor such as almost 1.0. The proposed circuit is able to reduce total harmonics distortion (THD) by 13%. Experimental result shows that input power factor is almost 1.0. The THD reduces 71.3% compared with simulation result of diode rectifier.