Patents by Inventor Kisun Lee

Kisun Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230416555
    Abstract: A housing of an electronic device including polymer materials is provided. The housing includes a polymer substrate, a primer layer disposed on at least a portion of the polymer substrate, a color layer disposed on the primer layer, and a coating layer disposed on the color layer. The primer layer, the color layer, and the coating layer include a biomass polyurethane resin and have a glass transition temperature of 80° C. to 110° C.
    Type: Application
    Filed: March 20, 2023
    Publication date: December 28, 2023
    Inventors: Hyunjung JUNG, Hangyu HWANG, Kisun LEE, Wonki LEE, Sungjun JANG, Byounggi CHO, Hyeonseok YOON, Hyoin KIM
  • Patent number: 11695280
    Abstract: An electronic device is provided. The electronic device includes a voltage divider circuit, a first battery electrically connected to a first point of the voltage divider circuit, and a second battery connected in series to the first battery. A second point different from the first point of the voltage divider circuit is electrically connected from a first node on an electric path through which the first battery and the second battery are electrically connected.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: July 4, 2023
    Inventors: Dongyoung Lee, Kisun Lee, Wooin Choi, Byunghwa Park
  • Publication number: 20230205290
    Abstract: An electronic device is provided. The electronic device includes a housing, a battery included within the housing, a connector electrically connected to an external power supply device including an integrated circuit (IC) and exposed to a part of the housing, and a power management unit included within the housing and electrically connected to the connector, wherein the power management unit is configured to communicate with the IC of the external power supply device, and wherein the connector is configured to receive a first current of a first current value during at least a part of the communication and to receive a second current of a second current value greater than the first current value during at least a part in which the communication is not performed.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Inventors: Kuchul JUNG, Sunggeun YOON, Kisun LEE, Hoyoung LEE, Seyoung JANG, Hyemi YU
  • Publication number: 20230123227
    Abstract: An example may include a battery cell and a controller configured to control charging of the battery cell, using a charging switch. The controller may be configured to adjust a charging current supplied to the battery cell by controlling the charging switch to prevent a voltage of a load from being less than a reference voltage when a voltage of the battery cell is equal to or less than the reference voltage while power is being supplied to the battery pack and the load connected to the battery pack.
    Type: Application
    Filed: December 14, 2022
    Publication date: April 20, 2023
    Inventors: Chanjung Bae, Kisun Lee
  • Patent number: 11599172
    Abstract: An electronic device is provided. The electronic device includes a housing, a battery included within the housing, a connector electrically connected to an external power supply device including an integrated circuit (IC) and exposed to a part of the housing, and a power management unit included within the housing and electrically connected to the connector, wherein the power management unit is configured to communicate with the IC of the external power supply device, and wherein the connector is configured to receive a first current of a first current value during at least a part of the communication and to receive a second current of a second current value greater than the first current value during at least a part in which the communication is not performed.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: March 7, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuchul Jung, Sunggeun Yoon, Kisun Lee, Hoyoung Lee, Seyoung Jang, Hyemi Yu
  • Publication number: 20230058431
    Abstract: An electronic device includes: a first DC/DC converter including switches, a first capacitor, and a first inductor; and control circuit configured to control on/off states of the switches. In an on state, the switches include: a first switch configured to connect one end of the first capacitor to the input power source; a second switch configured to connect the one end of the first capacitor to one end of the first inductor; a third switch configured to connect another end of the first capacitor to the one end of the first inductor; and a fourth switch configured to connect the other end of the first capacitor to an output terminal of the first DC/DC converter. The first inductor includes the one end connected to the other end of the second switch and the one end of the third switch, and another end connected to a ground.
    Type: Application
    Filed: August 4, 2022
    Publication date: February 23, 2023
    Inventors: Chuleun YUN, Kisun LEE, Hangseok CHOI
  • Patent number: 11532951
    Abstract: An electronic device is provided. The electronic device includes a battery and a power management module electrically connected to the battery and configured to manage a charging or a discharging of the battery. The power management module includes a first charging circuit configured to include a first switch group, a first capacitor, and a first inductor, a second charging circuit configured to include a second switch group, a second capacitor, and a second inductor, and a power path distributor configured to distribute power from a first external power supply device or a second external power supply device to the first charging circuit or the second charging circuit.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: December 20, 2022
    Inventors: Hangseok Choi, Kisun Lee
  • Patent number: 11476694
    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.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: October 18, 2022
    Inventors: Hangseok Choi, Kisun Lee
  • Patent number: 11456669
    Abstract: Implementations described and claimed herein provide systems and methods for supplying voltage to a load and battery. In one implementation, a first regulated DC-to-DC converter is electrically connected to a first energy source to down convert a first voltage supplied by the first energy source. A load is electrically connected to the first regulated DC-to-DC converter to receive the down converted first voltage. A second regulated DC-to-DC converter is electrically connected to the first regulated DC-to-DC converter to regulate the down converted first voltage to a second voltage. A second power source is electrically connected to the second regulated DC-to-DC converter to charge the second power source using the second voltage, and the second power source is switchably connectable to the load.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: September 27, 2022
    Assignee: Apple Inc.
    Inventors: Jeffrey M. Alves, Peng Wu, Yehonatan Perez, Kisun Lee, Philip Juang
  • Patent number: 11296518
    Abstract: An electronic device includes a housing, a display exposed through one surface of the housing, at least one ground member, a first battery disposed in the housing and including a first anode and a first cathode, a second battery disposed in the housing and including a second anode and a second cathode electrically connected with the at least one ground member, a charging circuit electrically connected with the first battery and the second battery, a charging interface electrically connected with the charging circuit, and a power management integrated circuit electrically connected with the charging interface and the charging circuit and managing power supplied to the electronic device. When an external power source is connected through the charging interface, the charging circuit connects the first battery and the second battery in series during a first time period and connects the first battery and the second battery in parallel during a second time period.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 5, 2022
    Inventors: Seho Park, Kisun Lee, Kyusik Choi
  • Patent number: 11288407
    Abstract: An electronic device for controlling voltage and a method therefor are provided. The electronic device includes a power regulator, a connector including one or more signal terminals and one or more power terminals electrically connected to the power regulator, and a control circuit electrically connected to the one or more signal terminals. The control circuit is configured to identify a type of an external electronic device connected through the connector, identify detected values for at least some of the one or more signal terminals based at least on the identified type corresponding to a predetermined type, and output, through the power regulator, a predetermined voltage to the external electronic device through the one or more power terminals based at least on the detected value being within a first predetermined range.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: March 29, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuchul Jung, Kisun Lee, Cheolyoon Chung, Hangseok Choi, Chihyun Cho
  • Publication number: 20210367434
    Abstract: A method is provided comprising: detecting a connection between an electronic device and a battery charger; transmitting to the battery charger a first request for at least one of a first voltage level and a first current level; receiving from the battery charger a signal; and charging a battery of the electronic device with the signal.
    Type: Application
    Filed: August 9, 2021
    Publication date: November 25, 2021
    Inventors: Ku-Chul JUNG, Erik Wilson MAIER, Oscar FREITAS, Kisun LEE, Chul-Eun YUN, Kwang-Sub LEE
  • Patent number: 11177681
    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
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: November 16, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoungwon Kim, Yusu Kim, Kisun Lee, Minjung Park, Seho Park, Hangseok Choi, Yongsang Yun, Chihyun Cho
  • Publication number: 20210296909
    Abstract: An electronic device is provided. The electronic device includes a housing, a battery included within the housing, a connector electrically connected to an external power supply device including an integrated circuit (IC) and exposed to a part of the housing, and a power management unit included within the housing and electrically connected to the connector, wherein the power management unit is configured to communicate with the IC of the external power supply device, and wherein the connector is configured to receive a first current of a first current value during at least a part of the communication and to receive a second current of a second current value greater than the first current value during at least a part in which the communication is not performed.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 23, 2021
    Inventors: Kuchul JUNG, Sunggeun YOON, Kisun LEE, Hoyoung LEE, Seyoung JANG, Hyemi YU
  • Patent number: 11121559
    Abstract: A method is provided comprising: detecting a connection between an electronic device and a battery charger; transmitting to the battery charger a first request for at least one of a first voltage level and a first current level; receiving from the battery charger a signal; and charging a battery of the electronic device with the signal.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: September 14, 2021
    Assignees: Samsung Electronics Co., Ltd., Fairchild Korea Semiconductor Ltd.
    Inventors: Ku-Chul Jung, Erik Wilson Maier, Oscar Freitas, Kisun Lee, Chul-Eun Yun, Kwang-Sub Lee
  • Patent number: 11050286
    Abstract: An electronic device is provided. The electronic device includes a housing, a battery included within the housing, a connector electrically connected to an external power supply device including an integrated circuit (IC) and exposed to a part of the housing, and a power management unit included within the housing and electrically connected to the connector, wherein the power management unit is configured to communicate with the IC of the external power supply device, and wherein the connector is configured to receive a first current of a first current value during at least a part of the communication and to receive a second current of a second current value greater than the first current value during at least a part in which the communication is not performed.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuchul Jung, Sunggeun Yoon, Kisun Lee, Hoyoung Lee, Seyoung Jang, Hyemi Yu
  • Publication number: 20210167612
    Abstract: An electronic device is provided. The electronic device includes a voltage divider circuit, a first battery electrically connected to a first point of the voltage divider circuit, and a second battery connected in series to the first battery. A second point different from the first point of the voltage divider circuit is electrically connected from a first node on an electric path through which the first battery and the second battery are electrically connected.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Inventors: Dongyoung Lee, Kisun Lee, Wooin Choi, Byunghwa Park
  • Publication number: 20210119465
    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.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 22, 2021
    Inventors: Hangseok Choi, Kisun Lee
  • Publication number: 20210119487
    Abstract: An electronic device is provided. The electronic device includes a battery and a power management module electrically connected to the battery and configured to manage a charging or a discharging of the battery. The power management module includes a first charging circuit configured to include a first switch group, a first capacitor, and a first inductor, a second charging circuit configured to include a second switch group, a second capacitor, and a second inductor, and a power path distributor configured to distribute power from a first external power supply device or a second external power supply device to the first charging circuit or the second charging circuit.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 22, 2021
    Inventors: Hangseok CHOI, Kisun LEE
  • Publication number: 20200366205
    Abstract: Implementations described and claimed herein provide systems and methods for supplying voltage to a load and battery. In one implementation, a first regulated DC-to-DC converter is electrically connected to a first energy source to down convert a first voltage supplied by the first energy source. A load is electrically connected to the first regulated DC-to-DC converter to receive the down converted first voltage. A second regulated DC-to-DC converter is electrically connected to the first regulated DC-to-DC converter to regulate the down converted first voltage to a second voltage. A second power source is electrically connected to the second regulated DC-to-DC converter to charge the second power source using the second voltage, and the second power source is switchably connectable to the load.
    Type: Application
    Filed: August 7, 2020
    Publication date: November 19, 2020
    Inventors: Jeffrey M. Alves, Peng Wu, Yehonatan Perez, Kisun Lee, Philip Juang