A wirelessly charged electronic device, comprising a receive coil, a wireless electric energy receiver (RXIC), a charger, a controller, and a battery (Bat), wherein the receive coil is configured to: receive an alternating magnetic field transmitted by a transmit coil, and convert the alternating magnetic field into an alternating current; the wireless electric energy receiver (RXIC) is configured to convert the alternating current sent by the receive coil into a direct current; an input end of the charger is connected to an output end of the wireless electric energy receiver (RXIC), and an output end of the charger is connected to the battery (Bat) and is configured to charge the battery (Bat) after converting the direct current sent by the wireless electric energy receiver (RXIC); characterized in that the charger comprises at least an open-loop DC-DC converter and a closed-loop DC-DC converter, and the open-loop DC-DC converter is connected to the closed-loop DC-DC converter in series or in parallel; and the controller is configured to: receive power of a transmit end and obtain required charging power of a receive end, compare the power of the transmit end with a first preset threshold of the transmit end, and compare the required charging power with a preset threshold of the receive end, and when the power of the transmit end is greater than the first preset threshold of the transmit end and the required charging power is greater than the first preset threshold of the receive end, control the open-loop DC-DC converter to work in a fast charging phase, specifically comprising: controlling the open-loop DC-DC converter to work in a constant current step-down phase to charge the battery at a constant current, or controlling the open-loop DC-DC converter to work in a constant voltage step-down phase to charge the battery at a constant voltage. the receive coil is configured to: receive an alternating magnetic field transmitted by a transmit coil, and convert the alternating magnetic field into an alternating current; the wireless electric energy receiver (RXIC) is configured to convert the alternating current sent by the receive coil into a direct current; an input end of the charger is connected to an output end of the wireless electric energy receiver (RXIC), and an output end of the charger is connected to the battery (Bat) and is configured to charge the battery (Bat) after converting the direct current sent by the wireless electric energy receiver (RXIC); characterized in that the charger comprises at least an open-loop DC-DC converter and a closed-loop DC-DC converter, and the open-loop DC-DC converter is connected to the closed-loop DC-DC converter in series or in parallel; and the controller is configured to: receive power of a transmit end and obtain required charging power of a receive end, compare the power of the transmit end with a first preset threshold of the transmit end, and compare the required charging power with a preset threshold of the receive end, and when the power of the transmit end is greater than the first preset threshold of the transmit end and the required charging power is greater than the first preset threshold of the receive end, control the open-loop DC-DC converter to work in a fast charging phase, specifically comprising: controlling the open-loop DC-DC converter to work in a constant current step-down phase to charge the battery at a constant current, or controlling the open-loop DC-DC converter to work in a constant voltage step-down phase to charge the battery at a constant voltage.