A wireless power receiver with a 3-level reconfigurable resonant regulating rectifier for mobile-charging applications

摘要

A wireless power receiver using a 3-level reconfigurable resonant regulating (R3) rectifier is presented in this summary. The receiver improves power conversion efficiency and reduces die area and off-chip components by achieving power conversion and voltage regulation in one stage, using only 4 on-chip power switches and 1 off-chip capacitor. The receiver regulates the output voltage at 5 V and delivers a maximum power of 6 W. It was fabricated in a standard 0.35 μm CMOS process with a die area of 4.77 mm2, and the measured peak efficiency reaches 92.2%.