Patents by Inventor Bong Jin Cho

Bong Jin Cho 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: 11799284
    Abstract: The present disclosure is directed to an apparatus for controlling temperature of component of power source separation circuit in which a temperature detection circuit may be implemented in a circuit that uses a power source different from a power source used by the control microcomputer, may directly measure a temperature of a circuit component, and may deliver a protective signal to the control microcomputer using a comparator and an insulating phototransistor, thereby implementing a protective operation.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: October 24, 2023
    Assignee: LG ELECTRONICS INC.
    Inventor: Bong Jin Cho
  • Patent number: 11785680
    Abstract: An induction heating device and a method for sensing a cooking vessel on an induction heating device are provided. The induction heating device may include a controller that converts a resonance waveform generated as current is applied to a sensing coil into a square waveform. The controller may determine whether a cooking vessel placed on the induction heating device has an inductive heating property based on a number of pulses of the converted square waveform.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: October 10, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyungsoo Hwangbo, Bong Jin Cho
  • Patent number: 11570855
    Abstract: The present invention relates to an induction heating cooker including a synchronization circuit for a plurality of inverters, comprising: a first inverter including a first switching circuit unit for applying a first power source to a first heating coil, and a first control unit for controlling the first switching circuit unit; and a second inverter including a second switching circuit unit for applying a second power source to a second heating coil, and a second control unit for controlling the second switching circuit unit, wherein the first inverter further includes a first insulated signal transfer unit for controlling an operation of the second switching circuit unit, and the first control unit may match an operating frequency of the second switching circuit unit with an operating frequency of the first switching circuit unit by using the first insulated signal transfer unit.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: January 31, 2023
    Assignee: LG Electronics Inc.
    Inventors: Bong Jin Cho, Jinwook Han, Seongho Son
  • Publication number: 20220039217
    Abstract: An induction heating device and a method for sensing a cooking vessel on an induction heating device are provided. The induction heating device may include a controller that converts a resonance waveform generated as current is applied to a sensing coil into a square waveform. The controller may determine whether a cooking vessel placed on the induction heating device has an inductive heating property based on a number of pulses of the converted square waveform.
    Type: Application
    Filed: October 13, 2021
    Publication date: February 3, 2022
    Inventors: Kyungsoo HWANGBO, Bong Jin CHO
  • Publication number: 20210396308
    Abstract: The present invention relates to a control apparatus and a control method for a transmission of an agricultural work vehicle, the control apparatus comprising: a forward/backward clutch of a forward/backward shifting unit that performs forward/backward shifting with respect to drive generated by an engine; and a drive clutch of a drive shifting unit that performs drive shifting with respect to the drive generated by the engine
    Type: Application
    Filed: September 20, 2019
    Publication date: December 23, 2021
    Inventors: Ji Hun YU, Jin Woong LEE, Ok Shik SHIN, Bong Jin CHO
  • Publication number: 20210359506
    Abstract: The present disclosure is directed to an apparatus for controlling temperature of component of power source separation circuit in which a temperature detection circuit may be implemented in a circuit that uses a power source different from a power source used by the control microcomputer, may directly measure a temperature of a circuit component, and may deliver a protective signal to the control microcomputer using a comparator and an insulating phototransistor, thereby implementing a protective operation.
    Type: Application
    Filed: October 11, 2019
    Publication date: November 18, 2021
    Inventor: Bong Jin CHO
  • Patent number: 11178732
    Abstract: An induction heating device and a method for sensing a cooking vessel on an induction heating device are provided. The induction heating device may include a controller that converts a resonance waveform generated as current is applied to a sensing coil into a square waveform. The controller may determine whether a cooking vessel placed on the induction heating device has an inductive heating property based on a number of pulses of the converted square waveform.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: November 16, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyungsoo Hwangbo, Bong Jin Cho
  • Publication number: 20190387585
    Abstract: The present invention relates to an induction heating cooker including a synchronization circuit for a plurality of inverters, comprising: a first inverter including a first switching circuit unit for applying a first power source to a first heating coil, and a first control unit for controlling the first switching circuit unit; and a second inverter including a second switching circuit unit for applying a second power source to a second heating coil, and a second control unit for controlling the second switching circuit unit, wherein the first inverter further includes a first insulated signal transfer unit for controlling an operation of the second switching circuit unit, and the first control unit may match an operating frequency of the second switching circuit unit with an operating frequency of the first switching circuit unit by using the first insulated signal transfer unit.
    Type: Application
    Filed: January 5, 2018
    Publication date: December 19, 2019
    Inventors: Bong Jin CHO, Jinwook HAN, Seongho SON
  • Publication number: 20180376545
    Abstract: An induction heating device and a method for sensing a cooking vessel on an induction heating device are provided. The induction heating device may include a controller that converts a resonance waveform generated as current is applied to a sensing coil into a square waveform. The controller may determine whether a cooking vessel placed on the induction heating device has an inductive heating property based on a number of pulses of the converted square waveform.
    Type: Application
    Filed: June 26, 2018
    Publication date: December 27, 2018
    Inventors: Kyungsoo HWANGBO, Bong Jin Cho