公开(公告)号：US12154497B2

公开(公告)日：2024-11-26

申请号：US18392495

申请日：2023-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hangseok Choi ,  Sangwoo Kang

IPC: G09G3/3225

Abstract: An example electronic device including a power supply circuit may include a battery; a display module including a display panel; a regulator; a power supply circuit configured to: based on an input voltage of the battery, provide a first voltage and a second voltage to the display module, and provide a third voltage to the regulator; and a switch control circuit configured to: control a switching operation of the power supply circuit, wherein the power supply circuit includes: a first power circuit and a second power circuit, wherein the first power circuit includes multiple switch elements, a first capacitor, a second capacitor, a third capacitor, and a first inductor, and is configured to: for a first time interval, based on a drive signal of the switch control circuit, charge the first capacitor and the second capacitor, based on a current of the first inductor and discharge the third capacitor to provide a first output current to the display module, and for a second time interval, based on a drive signal of the switch control circuit, charge the third capacitor and discharge the first capacitor and the second capacitor to provide the first output current and a second output current to the display module, and wherein the second power circuit is configured to: convert a voltage level of the input voltage of the battery to provide a second voltage to the display module.

公开(公告)号：US11742753B2

公开(公告)日：2023-08-29

申请号：US16885535

申请日：2020-05-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok Choi ,  Sangwoo Kang

IPC: H02M3/06 ,  H02J7/00 ,  H02M3/158 ,  H01M10/44 ,  H01M10/42 ,  G05F1/59 ,  H02J7/34

CPC classification number: H02M3/06 ,  H01M10/4264 ,  H01M10/44 ,  H02J7/0045 ,  H02J7/00712 ,  H02J7/007182 ,  H02M3/158 ,  G05F1/59 ,  H02J7/007 ,  H02J7/345 ,  H02J2207/20

Abstract: An electronic device including a voltage divider adaptively changing a voltage division ratio is provided. The electronic device comprises a rechargeable battery; a connector configured to connected the electronic device with an external electronic device; a voltage divider comprising a plurality of capacitors and a plurality of switches for switching an electrical path between each of the plurality of capacitors and the rechargeable battery, wherein the voltage divider is configured to provide three or more voltage division ratios; and a processor operably coupled with the voltage divider and the connector, wherein the processor is configured to: receive an indicator indicating a first voltage of a first power from the external electronic device; select a voltage division ratio from the three or more division ratios, based at least in part on the indicator; and control the plurality of switches on the basis of the selected voltage division ratio, and wherein the voltage divider is configured to: charge a rechargeable battery with a second voltage by dividing the first voltage according to the selected voltage division ratio.

公开(公告)号：US11177681B2

公开(公告)日：2021-11-16

申请号：US16663733

申请日：2019-10-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyoungwon Kim ,  Yusu Kim ,  Kisun Lee ,  Minjung Park ,  Seho Park ,  Hangseok Choi ,  Yongsang Yun ,  Chihyun Cho

IPC: H02J50/80 ,  H02J7/02 ,  H02J50/12

Abstract: An electronic device according to various embodiments may include: a coil configured to receive a signal for wirelessly obtaining power from an external electronic device; a wireless power circuit (MFC) configured to output the signal received by the coil as a DC signal; a first capacitive voltage divider circuit configured to adjust the voltage of, and to output, power according to a first voltage division ratio; a second capacitive voltage divider circuit configured to adjust the voltage of, and to output, power according to a second voltage division ratio; a controller configured to control the electronic device to provide the DC signal to at least one capacitive voltage divider circuit among the first capacitive voltage divider circuit and the second capacitive voltage divider circuit, based on a voltage value of the signal received through the coil; and a battery configured to receive another signal output from the at least one capacitive voltage divider circuit, based on the provided DC signal, thereby obtaining power.

公开(公告)号：US12107435B2

公开(公告)日：2024-10-01

申请号：US18191512

申请日：2023-03-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok Choi

IPC: H02J50/12 ,  H02J50/80 ,  H02M7/5395

CPC classification number: H02J50/12 ,  H02J50/80 ,  H02M7/5395 ,  H02J2207/20

Abstract: An electronic device utilizing a wireless charging system is provided. The electronic device includes a power source, a transmission coil, a full-bridge inverter electrically connected to the power source and the transmission coil, and a control circuit which communicates with an external device through the transmission coil, and controls the full-bridge inverter to transmit a power signal through the transmission coil. The control circuit may: receive, from the external device, a first control signal requesting that the power of the power signal be reduced to less than a specified power, in response to the first control signal, adjust the duty cycle of each of first to fourth gate signals for controlling the full-bridge inverter, and switch to a pulse width modulation (PWM) drive state in which an operation according to a first period and an operation according to a second period are alternately repeated.

公开(公告)号：US20170117942A1

公开(公告)日：2017-04-27

申请号：US15398970

申请日：2017-01-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinwoo KIM ,  Junho Kim ,  Seok-Hyun Kim ,  Hangseok Choi

IPC: H04B5/00 ,  H04B1/10

CPC classification number: H04B5/0062 ,  H04B1/1018 ,  H04B5/0025

Abstract: A calibrator to process an output signal of an analog digital converter in a wireless communication device, the calibrator comprising a level filter to remove noise from the output signal of the analog digital converter using mask information regulating a signal level; a timing filter to remove pulses from the level-filtered signal that are beyond a reference duty ratio by using timing information; a pattern filter to remove pulses from the timing-filtered signal that are judged to not comprise a reference number of consecutive pulses by using pattern information; and a duty correction circuit to correct a duty of the pattern-filtered signal to improve performance of the wireless communication device by separately performing a filtering operation on noise and a damping component included in a normal signal.

公开(公告)号：US11893931B2

公开(公告)日：2024-02-06

申请号：US17992291

申请日：2022-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hangseok Choi ,  Sangwoo Kang

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2330/028

Abstract: An electronic device including a power supply circuit according to the disclosure may include: a battery; a display module including a display panel; a regulator; a power supply circuit configured to: based on an input voltage of the battery, provide a first voltage and a second voltage to the display module, and provide a third voltage to the regulator; and a switch control circuit configured to: control a switching operation of the power supply circuit, wherein the power supply circuit includes: a first power circuit and a second power circuit, wherein the first power circuit includes multiple switch elements, a first capacitor, a second capacitor, a third capacitor, and a first inductor, and is configured to: for a first time interval, based on a drive signal of the switch control circuit, charge the first capacitor and the second capacitor, based on a current of the first inductor and discharge the third capacitor to provide a first output current to the display module, and for a second time interval, based on a drive signal of the switch control circuit, charge the third capacitor and discharge the first capacitor and the second capacitor to provide the first output current and a second output current to the display module, and wherein the second power circuit is configured to: convert a voltage level of the input voltage of the battery to provide a second voltage to the display module.

公开(公告)号：US11476694B2

公开(公告)日：2022-10-18

申请号：US17072198

申请日：2020-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok Choi ,  Kisun Lee

IPC: H02J7/00

Abstract: An electronic device is provided that includes a battery, a power management module, and a processor electrically connected to the power management module. The power management module includes a charging circuit including a plurality of switches, a capacitor, and an inductor. The power management module receives power from an external power supply device, identifies an electrical connection between the charging circuit and the external power supply device, operates in a first mode to charge the battery when a type of the external power supply device is a first type, and operates in a second mode to charge the battery when the type of the external power supply device is a second type.

公开(公告)号：US20220200310A1

公开(公告)日：2022-06-23

申请号：US17555852

申请日：2021-12-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok Choi

IPC: H02J7/00

Abstract: Disclosed are an electronic device for charging a battery based on a voltage of an interface and a method for controlling the same. The electronic device for charging a battery based on a voltage of an interface, according to an embodiment, may include: an interface comprising a conductive piece, a current reference control circuit; and a charging current control circuit configured to control the magnitude of a charging current applied to the interface, based on a control signal resulting from a comparison between a charging current value applied to the interface and a first critical current value configured in the current reference control circuit, wherein the current reference control circuit is configured to, based on a voltage value applied to the interface reaching a first critical voltage value, gradually decrease the first critical current value until the voltage value applied to the interface falls below the first critical voltage value, and maintain the first critical current value based on the voltage value applied to the interface being less than the first critical voltage value.

公开(公告)号：US20210119465A1

公开(公告)日：2021-04-22

申请号：US17072198

申请日：2020-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok Choi ,  Kisun Lee

IPC: H02J7/00

Abstract: An electronic device is provided that includes a battery, a power management module, and a processor electrically connected to the power management module. The power management module includes a charging circuit including a plurality of switches, a capacitor, and an inductor. The power management module receives power from an external power supply device, identifies an electrical connection between the charging circuit and the external power supply device, operates in a first mode to charge the battery when a type of the external power supply device is a first type, and operates in a second mode to charge the battery when the type of the external power supply device is a second type.

公开(公告)号：US12158495B2

公开(公告)日：2024-12-03

申请号：US17966456

申请日：2022-10-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok Choi ,  Sangwoo Kang ,  Kwangyoon Lee ,  Chuleun Yun ,  Cheolha Yun

IPC: G01R31/28 ,  G01R27/28 ,  H02J4/00 ,  H03K17/082

Abstract: A method and an apparatus for diagnosing an electronic apparatus are provided. The device for diagnosing an electronic device includes a master diagnosis block that generates a control signal when a diagnosis mode is started, a multiplexer that sequentially outputs a diagnosis power through a diagnosis power path based on the control signal, a slave diagnosis block that is sequentially supplied the diagnosis power through the diagnosis power path and generates diagnosis data of a power management circuit of the electronic device by using the diagnosis power, a modulator that transmits the diagnosis data by modulating a power signal of the diagnosis power path, and a demodulator that receives the diagnosis data by demodulating the power signal of the diagnosis power path and provides the diagnosis data to the master diagnosis block.