Maximizing Transfer Efficiency with an Adaptive Wireless Power Transfer System for Variable Load Applications

Electronic devices usually operate in a variable loading condition and the power transfer efficiency of accompanying wireless (WPT) method should be optimizable to load. In this paper, reconfigurable WPT technique is introduced maximize weakly coupled, load application. A series-series two-coil network with resonators at frequency 150 kHz presented and, under condition, shunt capacitor element added compensate for maximum state. The series capacitance secondary resonator tuned form resonance transfer. All capacitive elements are equipped reconfigurability. Regardless resistance, proposed approach able achieve constant delivery present only dependent on input voltage fixed operating frequency. comprehensive circuit model, calculation experiment show that optimized can met. 50 W demonstration established verify effectiveness approach.