Patents by Inventor Hyungmin GI

Hyungmin GI 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).

  • Patent number: 11513548
    Abstract: An apparatus and method for tracking maximum power are disclosed. The apparatus is configured to track a maximum power at a certain node of an electronic circuit, adjust an impedance of the electronic circuit such that power at the node is maximal, and adjust an impedance of the electronic circuit by comparing power at two points in time to increase power. The apparatus for tracking a maximum power, includes a charge sharing capacitor connected to an initial capacitor in parallel, a first switch disposed between the initial capacitor and an energy harvesting power supply, a second switch disposed between the initial capacitor and the charge sharing capacitor, a third switch disposed between the energy harvesting power supply and a comparator, and a switched-capacitor power converting circuit configured to control the initial capacitor.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: November 29, 2022
    Assignees: Samsung Electronics Co., Ltd., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Chisung Bae, Hyungmin Gi, Yeohoon Yoon, Yoonmyung Lee
  • Publication number: 20220107661
    Abstract: An apparatus and method for tracking maximum power are disclosed. The apparatus is configured to track a maximum power at a certain node of an electronic circuit, adjust an impedance of the electronic circuit such that power at the node is maximal, and adjust an impedance of the electronic circuit by comparing power at two points in time to increase power. The apparatus for tracking a maximum power, includes a charge sharing capacitor connected to an initial capacitor in parallel, a first switch disposed between the initial capacitor and an energy harvesting power supply, a second switch disposed between the initial capacitor and the charge sharing capacitor, a third switch disposed between the energy harvesting power supply and a comparator, and a switched-capacitor power converting circuit configured to control the initial capacitor.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 7, 2022
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Chisung BAE, Hyungmin GI, Yeohoon YOON, Yoonmyung LEE
  • Patent number: 11018579
    Abstract: A boost converter and a cell applicable to the boost converter are provided. The cell comprises a control circuit configured to generate a bottom control signal related to a bottom plate of a capacitor, and a top control signal related to a top plate of the capacitor to connect the capacitor based on one or more operational phases, and a booster configured to convert the top control signal generated by the control circuit, wherein the capacitor is configured to be sequentially connected to voltage levels through switches, based on the bottom control signal and the converted top control signal.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: May 25, 2021
    Assignees: Samsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan University
    Inventors: Seungchul Jung, Sang Joon Kim, Junyoung Park, Yoonmyung Lee, Hyungmin Gi
  • Publication number: 20200382000
    Abstract: A boost converter and a cell applicable to the boost converter are provided. The cell comprises a control circuit configured to generate a bottom control signal related to a bottom plate of a capacitor, and a top control signal related to a top plate of the capacitor to connect the capacitor based on one or more operational phases, and a booster configured to convert the top control signal generated by the control circuit, wherein the capacitor is configured to be sequentially connected to voltage levels through switches, based on the bottom control signal and the converted top control signal.
    Type: Application
    Filed: November 8, 2019
    Publication date: December 3, 2020
    Applicants: Samsung Electronics Co., Ltd., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Seungchul JUNG, Sang Joon KIM, Junyoung PARK, Yoonmyung LEE, Hyungmin GI