Patents by Inventor Tae Jong Ha

Tae Jong Ha 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: 10457151
    Abstract: A power conversion apparatus and method are provided. The apparatus includes a main battery and a power converter configured to execute a high power conversion mode that generates a high power and a low power conversion mode that generates a low power using an input power from the main battery. Additionally, an auxiliary battery is configured to receive and charge the low power and an inverter is configured to convert the high power to a driving power for driving a motor.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: October 29, 2019
    Assignee: Hyundai Motor Company
    Inventors: Tae-Jong Ha, Gi-Bong Son
  • Publication number: 20190312499
    Abstract: A power conversion system for vehicles is provided. The system includes a first energy storage device and a charging device with a rectification circuit for rectifying AC power to generate a DC link voltage. A DC-DC converter converts the level of the DC link voltage to generate a charging voltage of the first energy storage device. A low voltage DC-DC converter selectively down-converts one of the voltage of the first energy storage device and the DC link voltage to output a low voltage having a predetermined level. The low voltage DC-DC converter selectively converts one of the voltage of the first energy storage device and the DC link voltage into the low voltage based on whether the first energy storage device is charged according to input of the AC power.
    Type: Application
    Filed: October 5, 2018
    Publication date: October 10, 2019
    Inventors: Tae Jong Ha, In Yong Yeo, Dae Woo Lee, Youn Sik Lee
  • Publication number: 20190273441
    Abstract: A low voltage DC-DC converter for a vehicle includes: a switching circuit including a plurality of capacitors and a plurality of switches and converting a high voltage output from a high voltage battery into an AC voltage; a transformer converting the AC voltage output from the switching circuit into a low voltage; a current sensor measuring a current value output from the transformer; and a controller comparing the current value measured by the current sensor with a reference value to determine whether a current mode is a continuous current mode or a discontinuous current mode, and controlling one of the plurality of switches to be turned on or off as the determination result.
    Type: Application
    Filed: September 17, 2018
    Publication date: September 5, 2019
    Inventors: Dae Woo LEE, Woo Young LEE, Min Seong CHOI, Tae Jong HA, Jae Eun CHA, Jin Myeong YANG, In Yong YEO
  • Patent number: 10404179
    Abstract: A low voltage DC-DC converter for a vehicle includes: a switching circuit including a plurality of capacitors and a plurality of switches and converting a high voltage output from a high voltage battery into an AC voltage; a transformer converting the AC voltage output from the switching circuit into a low voltage; a current sensor measuring a current value output from the transformer; and a controller comparing the current value measured by the current sensor with a reference value to determine whether a current mode is a continuous current mode or a discontinuous current mode, and controlling one of the plurality of switches to be turned on or off as the determination result.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: September 3, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dae Woo Lee, Woo Young Lee, Min Seong Choi, Tae Jong Ha, Jae Eun Cha, Jin Myeong Yang, In Yong Yeo
  • Patent number: 10391558
    Abstract: The present invention provides a power manufacturing apparatus capable of preventing particle growth when fine powder is formed through a fluid, the apparatus comprising: a molten steel providing part for providing molten steel; and a cooling fluid spraying part which is arranged at a lower part of the molten steel providing part and sprays a cooling fluid on the molten steel in order to pulverize the molten steel provided by the molten steel providing part, wherein the cooling fluid spraying part forms a first flow for cooling the molten steel so as to pulverize the molten steel and a second flow for forming a descending air current in the molten steel.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: August 27, 2019
    Assignee: POSCO
    Inventors: Tae-Jong Ha, Si-Won Yoon, Hae-Kwon Jeong
  • Patent number: 10250117
    Abstract: The present disclosure provides a converter controlling apparatus including a plurality of switching devices capable of controlling a pulse width modulation (PWM), the converter controlling apparatus including: an efficiency determiner configured to variably change resistance of a gate terminal, wherein a PWM signal for controlling the PWM of the switching device is applied to a gate terminal based on an amount of current flowing through the converter.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: April 2, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Youn Sik Lee, Dae Woo Lee, Tae Jong Ha, In Yong Yeo, Byeong Seob Song
  • Patent number: 10056772
    Abstract: Disclosed herein is a wireless charging device including a heat radiation panel having a radiation plate and a radiation fin protruding from an upper surface of the radiation plate; a core section arranged in a region other than the protruding radiation fin, the core section being made of a material having high permeability; and a coil section arranged on the core section so as to come into contact with the protruding radiation fin.
    Type: Grant
    Filed: October 24, 2015
    Date of Patent: August 21, 2018
    Assignee: Hyundai Motor Company
    Inventors: Woo Young Lee, Si Hun Yang, In Yong Yeo, Tae Jong Ha, Gyu Yeong Choe, Hyun Wook Seong
  • Publication number: 20180166982
    Abstract: The present disclosure provides a converter controlling apparatus including a plurality of switching devices capable of controlling a pulse width modulation (PWM), the converter controlling apparatus including: an efficiency determiner configured to variably change resistance of a gate terminal, wherein a PWM signal for controlling the PWM of the switching device is applied to a gate terminal based on an amount of current flowing through the converter.
    Type: Application
    Filed: October 27, 2017
    Publication date: June 14, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Youn Sik LEE, Dae Woo LEE, Tae Jong HA, In Yong YEO, Byeong Seob SONG
  • Patent number: 9908424
    Abstract: A wireless charging system of a vehicle includes: a transmitting coil module including a plurality of transmitting coils; and a receiving coil module including a plurality of receiving coils receiving power by electronic resonance with the plurality of transmitting coils. The plurality of transmitting coils have a winding structure which is formed by a conductive wire causing a direction of a magnetic field generated by any one of the plurality of transmitting coils different from a direction of a magnetic field generated by a transmitting coil directly adjacent to the one transmitting coil by making a current flow in the plurality of transmitting coils.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: March 6, 2018
    Assignee: Hyundai Motor Company
    Inventors: Woo Young Lee, Tae Jong Ha, In Yong Yeo, Byeong Seob Song, Gyu Yeong Choe
  • Publication number: 20170349052
    Abstract: Switching devices of a primary circuit connected in parallel to each other and a method for operating the same are provided. The switching device includes a first module that is connected between a power supply component that applies power of a vehicle and a ground component. A plurality of first modules and a plurality of second modules are provided. Further, a second module is connected in parallel to the first module.
    Type: Application
    Filed: November 9, 2016
    Publication date: December 7, 2017
    Inventors: Tae Jong Ha, In Yong Yeo, Dae Woo Lee, Youn Sik Lee
  • Publication number: 20160336776
    Abstract: Disclosed herein is a wireless charging device including a heat radiation panel having a radiation plate and a radiation fin protruding from an upper surface of the radiation plate; a core section arranged in a region other than the protruding radiation fin, the core section being made of a material having high permeability; and a coil section arranged on the core section so as to come into contact with the protruding radiation fin.
    Type: Application
    Filed: October 24, 2015
    Publication date: November 17, 2016
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Woo Young Lee, Si Hun Yang, In Yong Yeo, Tae Jong Ha, Gyu Yeong Choe, Hyun Wook Seong
  • Publication number: 20160279712
    Abstract: The present invention provides a power manufacturing apparatus capable of preventing particle growth when fine powder is formed through a fluid, the apparatus comprising: a molten steel providing part for providing molten steel; and a cooling fluid spraying part which is arranged at a lower part of the molten steel providing part and sprays a cooling fluid on the molten steel in order to pulverize the molten steel provided by the molten steel providing part, wherein the cooling fluid spraying part forms a first flow for cooling the molten steel so as to pulverize the molten steel and a second flow for forming a descending air current in the molten steel.
    Type: Application
    Filed: December 24, 2013
    Publication date: September 29, 2016
    Applicants: POSCO, POSCO
    Inventors: Tae-Jong HA, Si-Won YOON, Hae-Kwon JEONG
  • Publication number: 20160185237
    Abstract: A power conversion apparatus and method are provided. The apparatus includes a main battery and a power converter configured to execute a high power conversion mode that generates a high power and a low power conversion mode that generates a low power using an input power from the main battery. Additionally, an auxiliary battery is configured to receive and charge the low power and an inverter is configured to convert the high power to a driving power for driving a motor.
    Type: Application
    Filed: July 9, 2015
    Publication date: June 30, 2016
    Inventors: Tae-Jong Ha, Gi-Bong Son
  • Publication number: 20160137072
    Abstract: A wireless charging system of a vehicle includes: a transmitting coil module including a plurality of transmitting coils; and a receiving coil module including a plurality of receiving coils receiving power by electronic resonance with the plurality of transmitting coils. The plurality of transmitting coils have a winding structure which is formed by a conductive wire causing a direction of a magnetic field generated by any one of the plurality of transmitting coils different from a direction of a magnetic field generated by a transmitting coil directly adjacent to the one transmitting coil by making a current flow in the plurality of transmitting coils.
    Type: Application
    Filed: April 23, 2015
    Publication date: May 19, 2016
    Inventors: Woo Young Lee, Tae Jong Ha, In Yong Yeo, Byeong Seob Song, Gyu Yeong Choe