Abstract: According to various embodiments, provided is an electronic device, which comprises a housing and a relay circuit located inside the housing and is capable of receiving and/or retransmitting an electromagnetic field of an external electronic device, wherein the relay circuit is configured to form a resonant frequency higher than that of an operating frequency range of the electromagnetic field transmitted by the external electronic device. Additional various embodiments are possible.

Abstract: A method and electronic device for performing wireless charging are provided. The electronic device includes a housing, a conductive coil, a power transmission circuit electrically connected to the conductive coil, and configured to wirelessly transmit power to an outside of the housing through the conductive coil, a voltage source electrically connected to the power transmission circuit, and a control circuit electrically connected between the power transmission circuit and the voltage source. The control circuit is configured to change power radiated through the conductive coil, monitor a frequency of a signal and/or electromagnetic waves radiated through the conductive coil, and adjust a level of a voltage from the voltage source based on at least a part of a monitored result of the frequency.

Abstract: An electronic device includes a battery, a power regulator electrically connected with the battery and including an input terminal and an output terminal, a connector electrically connected with the input terminal, a wireless power transmitting circuit electrically connected with the output terminal, a switch electrically connected between the connector and the wireless power transmitting circuit, and a controller configured to identify an approaching external electronic device or a wireless charging-related request, identify whether power is provided from an external power supply via the connector in response to the identification, in response to identifying that power is not provided from the external power supply, supply power from the battery via the power regulator to the wireless power transmitting circuit, and in response to identifying that power is provided from the external power supply, supply the power provided from the external power supply to the wireless power transmitting circuit via the switc

Abstract: An electronic device according to one embodiment of the present disclosure includes a conductive coil, a power generation circuit, and one or more processors operatively connected to the power generation circuit and may be configured to: compare an amount of transmission power to be supplied to a power reception device with designated threshold power amount, determine a designated frequency to be a frequency of a control signal for controlling the power generation circuit when the amount of transmission power is equal to or less than the designated threshold power amount, determine a phase of the control signal based at least in part on the amount of transmission power and/or the designated frequency when the designated frequency is determined to be the frequency of the control signal, transmit the control signal having the designated frequency and the phase to the power generation circuit to generate, based at least in part on the control signal, transmission power corresponding to the amount of transmission

Abstract: According to various embodiments, provided is an electronic device, which comprises a housing and a relay circuit located inside the housing and is capable of receiving and/or retransmitting an electromagnetic field of an external electronic device, wherein the relay circuit is configured to form a resonant frequency higher than that of an operating frequency range of the electromagnetic field transmitted by the external electronic device. Additional various embodiments are possible.

Abstract: An electronic device includes a battery, a power regulator electrically connected with the battery and including an input terminal and an output terminal, a connector electrically connected with the input terminal, a wireless power transmitting circuit electrically connected with the output terminal, a switch electrically connected between the connector and the wireless power transmitting circuit, and a controller configured to identify an approaching external electronic device or a wireless charging-related request, identify whether power is provided from an external power supply via the connector in response to the identification, in response to identifying that power is not provided from the external power supply, supply power from the battery via the power regulator to the wireless power transmitting circuit, and in response to identifying that power is provided from the external power supply, supply the power provided from the external power supply to the wireless power transmitting circuit via the switc

Abstract: A method and electronic device for performing wireless charging are provided. The electronic device includes a housing, a conductive coil, a power transmission circuit electrically connected to the conductive coil, and configured to wirelessly transmit power to an outside of the housing through the conductive coil, a voltage source electrically connected to the power transmission circuit, and a control circuit electrically connected between the power transmission circuit and the voltage source. The control circuit is configured to change power radiated through the conductive coil, monitor a frequency of a signal and/or electromagnetic waves radiated through the conductive coil, and adjust a level of a voltage from the voltage source based on at least a part of a monitored result of the frequency.

Abstract: An electronic device according to one embodiment of the present disclosure includes a conductive coil, a power generation circuit, and one or more processors operatively connected to the power generation circuit and may be configured to: compare an amount of transmission power to be supplied to a power reception device with designated threshold power amount, determine a designated frequency to be a frequency of a control signal for controlling the power generation circuit when the amount of transmission power is equal to or less than the designated threshold power amount, determine a phase of the control signal based at least in part on the amount of transmission power and/or the designated frequency when the designated frequency is determined to be the frequency of the control signal, transmit the control signal having the designated frequency and the phase to the power generation circuit to generate, based at least in part on the control signal, transmission power corresponding to the amount of transmission