FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, in particular to wireless charging systems. Wireless charging receiver comprises a receiving coil configured to communicate with a variable magnetic field of the transmitting coil of the wireless charging transmitter to obtain alternating current power; a receiving microcircuit having an input connected to a receiving coil and an output connected to the input of the conversion IC with switched capacitors, and configured to convert AC power to the first DC power; and a switching capacitor with switched capacitors having an output connected to the battery and configured to output a second DC power based on the first DC power, and for charging the battery based on the second DC power, wherein the voltage of the second DC power supply is less than the voltage of the first DC power supply, and the current of the second DC power supply is greater than the current of the first DC power supply.
EFFECT: technical result when transition of IC conversion with switching capacitors to current limitation mode, flowing current can be reduced, thus problems of sudden change of flowing current are avoided.
16 cl, 12 dwg
