Performance evaluation of saturating class - C driver circuit for inductive wireless power transfer

Abstract

This paper presents performance evaluation of saturating class - C driver circuit for inductive wireless power transfer. Exact link is designed following link optimization theory to select parameters of the objective circuit. By exploring specific parameters of drain to source voltage effect on overall circuit, single MOSFET is used in the proposed driver circuit design instead of two parallel MOSFETs used in conventional driver circuit. Simulation results show that the proposed driver circuit provides a significant improvement in the driver efficiency (90.34%) as well as in the overall efficiency compared to the existing driver circuit. Furthermore, from the performance comparison, it is observed that the transferred output power (14.94 mW) has also been improved considerably.