Voltage protection circuit to prevent power amplifier burnout, and electronic device having the same

    公开(公告)号:US11211955B2

    公开(公告)日:2021-12-28

    申请号:US16832495

    申请日:2020-03-27

    Abstract: Disclosed is a voltage protection circuit for preventing power amplifier burnout in an electronic device. The electronic device includes a power amplifier (PA) configured to amplify a transmission signal, a switch configured to set a path of a signal outputted from the PA, a bias control circuit configured to control the supply of a bias current driving the PA, and a voltage protection circuit configured to provide a main control signal for turning off the PA earlier than turning off the switch based on a battery voltage providing a driving power of the electronic device, and forward the main control signal to the bias control circuit, wherein, in response to receiving the main control signal instructing to turn off the PA from the voltage protection circuit, the bias control unit stops the supply of the bias current driving the PA.

    Electronic device comprising antenna and method for transmitting or receiving signal

    公开(公告)号:US11101827B2

    公开(公告)日:2021-08-24

    申请号:US16766975

    申请日:2019-01-21

    Abstract: Disclosed is an electronic device which includes a housing that includes a first plate, a second plate facing away from the first plate, and a side member surrounding a space between the first plate and the second plate, wherein the side member includes a first conductive portion including a first end and being elongated, a second conductive portion including a second end and a third end and being elongated, the second end being adjacent to the first end, a third conductive portion including a fourth end adjacent to the third end and being elongated, a first insulating portion disposed between the first end and the second end to contact the first end and the second end, and a second insulating portion disposed between the third end and the fourth end to contact the third end and the fourth end, a display that is exposed through the first plate, at least one wireless communication circuit that is electrically connected with a first point placed at the first conductive portion and adjacent to the first end, a first switching element electrically connected with a second point, which is placed at the second conductive portion and is adjacent to the third end, through a capacitive element and electrically connected with a third point placed at the second conductive portion and adjacent to the third end, and a fourth point placed at the third conductive portion and adjacent to the fourth end, at least one ground member that is electrically connected with a fifth point placed at the first conductive portion and more distant from the first end than the first point, a second switching element electrically connected with a sixth point placed at the second conductive portion and adjacent to the second end, a seventh point placed at the second conductive portion and adjacent to the third point, and an eighth point placed at the third conductive portion and more distant from the fourth end than the fourth point, and a control circuit that is configured to control the first switching element and the second switching element. Moreover, various embodiment found through the present disclosure are possible.

    ANTENNA AND FOLDABLE ELECTRONIC DEVICE INCLUDING THE SAME

    公开(公告)号:US20210143853A1

    公开(公告)日:2021-05-13

    申请号:US17152855

    申请日:2021-01-20

    Abstract: In an embodiment, an electronic device may include a housing including a hinge module, a first housing, and second housing. The first and second housings are rotatably coupled to each other via the hinge module to be in a folded state or an unfolded state. The electronic device may further include a flexible display, at least one conductive pattern disposed in the first housing, at least one conductor disposed at a position in the second housing corresponding to the at least one conductive pattern such that the at least one conductor is capacitively coupled to the conductive pattern when the electronic device is in the folded state, and a wireless communication circuit electrically connected to the at least one conductive pattern in the first housing. Other embodiments are also possible.

    Method for multiband communication using single antenna and electronic device therefor

    公开(公告)号:US10985786B2

    公开(公告)日:2021-04-20

    申请号:US16875510

    申请日:2020-05-15

    Abstract: Disclosed is an electronic device that performs communication in multiple bands by using a single antenna, and includes an antenna, a radio frequency front end module (RF FEM) connected to the antenna, a first signal processing module connected to the RF FEM and configured to process a signal of a first radio access technology (RAT), and a second signal processing module connected to the RF FEM and configured to process a signal of a second RAT, the signal of the second RAT being different than the signal of the first RAT, and the RF FEM including a frequency separating circuit configured to separate a signal received through the antenna into the signal of the first RAT and the signal of the second RAT, and a switch including a first input terminal coupled with the antenna, a first output terminal coupled with an input terminal of the frequency separating circuit, a second input terminal coupled with one of output terminals of the frequency separating circuit, and a second output terminal coupled with a path for the first signal processing module.

    Loop type antenna and electronic device including same

    公开(公告)号:US10985463B2

    公开(公告)日:2021-04-20

    申请号:US16939503

    申请日:2020-07-27

    Abstract: According to various embodiments, an electronic device comprises: a first plate; a second plate facing the opposite direction of the first plate; a housing including a lateral member for encompassing the space between the first plate and the second plate; and an antenna structure, wherein the antenna structure includes: a plurality of insulating layers arranged in a stacked manner so as to be parallel to the first plate; a loop antenna array formed by the insulating layers and/or by the peripheries of the insulating layers; and a wireless communication circuit electrically connected to loop antennas, and configured to transmit and receive a first signal having a first frequency of a range of 3 GHz to 100 GHz.

    ELECTRONIC DEVICE AND WIRELESS COMMUNICATION SYSTEM THEREOF

    公开(公告)号:US20210028872A1

    公开(公告)日:2021-01-28

    申请号:US16934542

    申请日:2020-07-21

    Abstract: An electronic device includes a network monitor configured to acquire network environment information related to a radio frequency (RF) transmission signal; a transceiver configured to generate an envelope signal of the RF transmission signal; a transmission (Tx) module including a power amplifier for receiving the RF transmission signal from the transceiver and amplifying the RF transmission signal; and an envelope tracking (ET) modulator configured to receive the envelope signal from the transceiver and to provide a bias of a power amplifier to correspond to the envelope signal, wherein the ET modulator determines a magnitude of the bias of the power amplifier based on the network environment information acquired by the network monitor.

    Electronic device including a plurality of switches selectively connecting antenna having a plurality of feeding terminals with communication circuit, and driving method thereof

    公开(公告)号:US10886623B2

    公开(公告)日:2021-01-05

    申请号:US16444311

    申请日:2019-06-18

    Abstract: Disclosed is an electronic device. The electronic device includes an antenna including a radiation part comprising a radiator having a patch shape, a first feeding port provided in a first direction of the radiation part, a second feeding port provided in a second direction perpendicular to the first direction of the radiation part, a third feeding port provided in a direction facing away from the first direction, and a fourth feeding port provided in a direction facing away from the second direction, a wireless communication circuit that includes a first communication circuit and a second communication circuit, the first communication circuit including a first transmitter and a first receiver and the second communication circuit including a second transmitter and a second receiver, a first switch configured to selectively connect the first transmitter and the first receiver with the first feeding port, a second switch configured to selectively connect the first transmitter and the first receiver with the second feeding port, a third switch configured to selectively connect the second transmitter and the second receiver with the third feeding port, and a fourth switch configured to selectively connect the second transmitter and the second receiver with the fourth feeding port.

    VOLTAGE PROTECTION CIRCUIT TO PREVENT POWER AMPLIFIER BURNOUT, AND ELECTRONIC DEVICE HAVING THE SAME

    公开(公告)号:US20200313703A1

    公开(公告)日:2020-10-01

    申请号:US16832495

    申请日:2020-03-27

    Abstract: Disclosed is a voltage protection circuit for preventing power amplifier burnout in an electronic device. The electronic device includes a power amplifier (PA) configured to amplify a transmission signal, a switch configured to set a path of a signal outputted from the PA, a bias control circuit configured to control the supply of a bias current driving the PA, and a voltage protection circuit configured to provide a main control signal for turning off the PA earlier than turning off the switch based on a battery voltage providing a driving power of the electronic device, and forward the main control signal to the bias control circuit, wherein, in response to receiving the main control signal instructing to turn off the PA from the voltage protection circuit, the bias control unit stops the supply of the bias current driving the PA.

    ELECTRONIC DEVICE INCLUDING SPHERICAL STRUCTURE

    公开(公告)号:US20200238977A1

    公开(公告)日:2020-07-30

    申请号:US16751780

    申请日:2020-01-24

    Abstract: An electronic device including a first device having a spherical housing, and a second device arranged on a surface of the spherical housing, wherein the first device includes a first driving device arranged in the spherical housing and configured to deliver power to the spherical housing, a structure arranged in the spherical housing and configured to arrange the second device on a surface of the spherical housing, a second driving device configured to trigger a movement of the structure, a processor electrically connected with the first driving device and the second driving device, and a memory operatively connected with the processor, wherein the memory is configured to store instructions that, when executed, enable the processor to control the second driving device to, in response to identifying a coupling of the second device with the first device, adjust an arrangement direction of the second device with respect to the first driving device.

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