A wireless charging receiver , a receiving coil , configured to be coupled to an alternating magnetic field of a transmitting coil of a wireless charging transmitter, to obtain an alternating-current (AC) power supply; a receiving chip , having an input coupled to the receiving coil and an output coupled to an input of a switched-capacitor conversion chip , and configured to convert the AC power supply into a first direct-current (DC) power supply; and the switched-capacitor conversion chip , having an output coupled to a battery, and configured to output a second DC power supply based on the first DC power supply, and charge the battery based on the second DC power supply, a voltage of the second DC power supply being lower than a voltage of the first DC power supply, and a current of the second DC power supply being greater than a current of the first DC power supply; being characterized by that: the switched-capacitor conversion chip is further configured to detect a path current, and enter into a current limiting mode in response to the path current being greater than or equal to a sum of a current threshold and a first current deviation, the first current deviation being greater than or equal to 0, and lower than the current threshold; the current limiting mode is to limit a current of the switched-capacitor conversion chip; the path current comprises at least one of: an input current of the switched-capacitor conversion chip , an output current of the switched-capacitor conversion chip , and a current on an internal switch in the switched-capacitor conversion chip . a receiving coil , configured to be coupled to an alternating magnetic field of a transmitting coil of a wireless charging transmitter, to obtain an alternating-current (AC) power supply; a receiving chip , having an input coupled to the receiving coil and an output coupled to an input of a switched-capacitor conversion chip , and configured to convert the AC power supply into a first direct-current (DC) power supply; and the switched-capacitor conversion chip , having an output coupled to a battery, and configured to output a second DC power supply based on the first DC power supply, and charge the battery based on the second DC power supply, a voltage of the second DC power supply being lower than a voltage of the first DC power supply, and a current of the second DC power supply being greater than a current of the first DC power supply; being characterized by that: the switched-capacitor conversion chip is further configured to detect a path current, and enter into a current limiting mode in response to the path current being greater than or equal to a sum of a current threshold and a first current deviation, the first current deviation being greater than or equal to 0, and lower than the current threshold; the current limiting mode is to limit a current of the switched-capacitor conversion chip; the path current comprises at least one of: an input current of the switched-capacitor conversion chip , an output current of the switched-capacitor conversion chip , and a current on an internal switch in the switched-capacitor conversion chip . the switched-capacitor conversion chip is further configured to detect a path current, and enter into a current limiting mode in response to the path current being greater than or equal to a sum of a current threshold and a first current deviation, the first current deviation being greater than or equal to 0, and lower than the current threshold; the current limiting mode is to limit a current of the switched-capacitor conversion chip; the path current comprises at least one of: an input current of the switched-capacitor conversion chip , an output current of the switched-capacitor conversion chip , and a current on an internal switch in the switched-capacitor conversion chip . <EOS>