Patent ID: 10847999

Abstract:
Disclosed herein is a wireless power receiving device that includes a power receiving coil that takes in AC power via a magnetic field, and a rectifier that converts the AC power to DC power and outputs the DC power to a load. The rectifier includes a plurality of diodes bridge-connected to each other, the plurality of diodes including a first diode whose anode is connected to one input terminal of the rectifier and a second diode whose cathode is connected to the one input terminal of the rectifier; a first capacitor connected in parallel with the first diode; and a second capacitor connected in parallel with the second diode. Capacitances C1 and C2 of the first and second capacitor satisfy C1<1/(2fRLmax) and C2<1/(2fRLmax) where a frequency of the AC power is denoted by f, and a maximum resistance value of the load is denoted by RLmax.