Analysis and design of wireless electromagnetic energy transfer systems

In this paper we present our research on several original circuits working as wireless power transfer systems (WPTS). All the circuits in the paper used sets of two magnetically coupled coils whose parameters were extracted by simulations using ANSOFT Q3D Extractor. The circuits were then simulated using TINA (DesignSoft), PSpice (Cadence Design) and Simulink in Matlab (Mathworks). We used existing parts libraries from Texas Instruments. The circuits were also physically built and tested and the results were very close to the numerical ones. We also compared the results with data in existing literature and we obtained a bound of the error of less than 5%. We also studied the efficiency of the power transfer and presented some practical applications for these systems such as low power battery chargers.