Patents by Inventor Jin Myeong Yang

Jin Myeong Yang 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: 20190318864
    Abstract: A planar transformer according to the present disclosure can include: at least one pair of cores arranged vertically and symmetrically; and a printed circuit board assembly including primary printed circuit boards having coil patterns forming a primary wiring and secondary printed circuit boards having coil patterns forming a secondary wiring, the secondary printed circuit boards respectively disposed over or under the primary printed circuit boards. The coil patterns of the primary printed circuit boards and the coil patterns of the secondary printed circuit boards can be alternately stacked.
    Type: Application
    Filed: September 25, 2018
    Publication date: October 17, 2019
    Inventors: In Yong Yeo, Jin Myeong Yang, Jae Eun Cha, Dae Woo Lee, Woo Young Lee
  • Publication number: 20190315233
    Abstract: A power conversion system for vehicles is provided. The system includes a switching circuit having first input/output terminals, second input/output terminals and a plurality of switching elements connected between the first input/output terminals and the second input/output terminals. A first energy storage device is connected to the second input/output terminals and has a preset charging/discharging voltage. A first voltage conversion circuit converts power output from the first input/output terminals to output a voltage less than the voltage of the first energy storage device. A second energy storage device is charged/discharged with the output voltage of the first voltage conversion circuit. A controller controls open/short-circuit states of the switching elements based on whether the first energy storage device is being charged and whether the vehicle is traveling.
    Type: Application
    Filed: September 4, 2018
    Publication date: October 17, 2019
    Inventors: In Yong Yeo, Jin Myeong Yang, Woo Young Lee, Youn Sik Lee, Dae Woo Lee, Jong Pil Kim
  • 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: 10293705
    Abstract: A vehicle may include a first battery to output power of a first voltage, a second battery to output power of a second voltage, a DC-DC converter to convert the first voltage of the first battery into the second voltage, and to supply the power of the second voltage to the second battery. The DC-DC converter may include a transformer to convert the first voltage into the second voltage, a first switch to control first current input to the transformer from the first battery, a current sensor to measure a value of second current output to the second battery from the transformer, and a controller to turn on/off the first switch based on a set turning-on/off frequency. The controller may delay turning-on/off of the first switch based on the measured value of the second current.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: May 21, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Dae Woo Lee, Woo Young Lee, Jun Ho Kim, Taejong Ha, JaeEun Cha, Jin Myeong Yang, Inyong Yeo
  • Patent number: 10286796
    Abstract: The present disclosure provides a vehicle, a vehicle charging apparatus, vehicle charging system, and a vehicle charging method. The vehicle charging apparatus may include: a first coil; a second coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the first coil; a third coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the second coil; and a fourth coil having one end selectively connected to one end of the second coil, and the other end selectively connected to the other end of the first coil, where the fourth coil intersects the third coil.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 14, 2019
    Assignee: Hyundai Motor Company
    Inventors: Woo Young Lee, Jin Myeong Yang, Gyu Yeong Choe, Jun Ho Kim, Inyong Yeo, Sihun Yang, JaeEun Cha, Dae Woo Lee, JinYoung Yang
  • Patent number: 10256737
    Abstract: A single direct current (DC)-DC converter may include a switching part switching an input DC voltage; first and second transforming parts transforming an output of the switching part; a rectifying part rectifying outputs of each of the first and second transforming parts; and an output part filtering and outputting an output of the rectifying part.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 9, 2019
    Assignee: Hyundai Motor Company
    Inventors: Si Hun Yang, Woo Young Lee, Young Jin Kim, Jin Young Yang, Jin Myeong Yang, Gyu Yeong Choe
  • Publication number: 20190061553
    Abstract: A motor driving and battery charging apparatus is provided. The apparatus includes a motor having a plurality of coils, a rectifier circuit connected to the plurality of coils, and a high voltage battery. An inverter generates a driving current from an output voltage of the high voltage battery and supplies the driving current to the motor while the motor operates. While the high voltage battery is charged, the rectifier circuit rectifies an alternating current (AC) of an external power source, the motor and the inverter compensate for a power factor of the current rectified by the rectifier circuit, and the high voltage battery is charged with an output current of the motor and the inverter.
    Type: Application
    Filed: November 30, 2017
    Publication date: February 28, 2019
    Inventors: Jin Myeong Yang, Woo Young Lee, Jun Ho Kim, Sihun Yang, Youngjin Kim, Jae Eun Cha, Dae Woo Lee, Inyong Yeo
  • Patent number: 10158245
    Abstract: A method and apparatus for controlling an on-board charger (OBC) are provided. The method includes monitoring a voltage of an input power source, increasing or decreasing the voltage of the input power source to a preset output voltage of a power factor corrector (PFC), and operating a converter receiving the preset output voltage to adjust a switching frequency of the converter based on a ripple current of an output terminal of the converter. Additionally, the converter includes a first switch configured to receive a first voltage of a first capacitor mounted within the PFC and a second switch configured to receive a second voltage of a second capacitor mounted within the PFC.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 18, 2018
    Assignee: Hyundai Motor Company
    Inventors: Si Hun Yang, Woo Young Lee, Jun Ho Kim, Young Jin Kim, Jin Myeong Yang, Jin Young Yang
  • Patent number: 10084444
    Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC (silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 25, 2018
    Assignee: Hyundai Motor Company
    Inventors: Dae Woo Lee, Jin Myeong Yang, In Yong Yeo, Jin Young Yang, Youn Sik Lee, Byeong Seob Song, Woo Young Lee
  • Publication number: 20180257494
    Abstract: A vehicle charging apparatus includes: an AC/DC converter configured to variably output a DC link voltage; and a DC/DC converter electrically connected to the AC/DC converter and configured to acquire an output voltage by conversion of the DC link voltage outputted by the AC/DC converter and transmit the acquired output voltage to a battery. The AC/DC converter includes: a first switch element configured to adjust a power factor of the AC/DC converter according to an operation of the first switch element, and a second switch element configured to increase the DC link voltage outputted by the AC/DC converter according to the operation of the first switch element.
    Type: Application
    Filed: July 6, 2017
    Publication date: September 13, 2018
    Inventors: Sihun Yang, JinYoung Yang, Jun Ho Kim, Youngjin Kim, Jin Myeong Yang
  • Patent number: 10071640
    Abstract: An integrated module of an OBC and an inverter includes: an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, the 3-phase AC voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: September 11, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jin Myeong Yang, Si Hun Yang, Gyu Yeong Choe, Jin Young Yang, Han Geun Jang, Woo Young Lee
  • Publication number: 20180141444
    Abstract: The present disclosure provides a vehicle, a vehicle charging apparatus, vehicle charging system, and a vehicle charging method. The vehicle charging apparatus may include: a first coil; a second coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the first coil; a third coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the second coil; and a fourth coil having one end selectively connected to one end of the second coil, and the other end selectively connected to the other end of the first coil, where the fourth coil intersects the third coil.
    Type: Application
    Filed: May 1, 2017
    Publication date: May 24, 2018
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Woo Young LEE, Jin Myeong YANG, Gyu Yeong CHOE, Jun Ho KIM, Inyong YEO, Sihun YANG, JaeEun CHA, Dae Woo LEE, JinYoung YANG
  • Publication number: 20180141457
    Abstract: A vehicle may include a first battery to output power of a first voltage, a second battery to output power of a second voltage, a DC-DC converter to convert the first voltage of the first battery into the second voltage, and to supply the power of the second voltage to the second battery. The DC-DC converter may include a transformer to convert the first voltage into the second voltage, a first switch to control first current input to the transformer from the first battery, a current sensor to measure a value of second current output to the second battery from the transformer, and a controller to turn on/off the first switch based on a set turning-on/off frequency. The controller may delay turning-on/off of the first switch based on the measured value of the second current.
    Type: Application
    Filed: March 20, 2017
    Publication date: May 24, 2018
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Dae Woo Lee, Woo Young Lee, Jun Ho Kim, TAEJONG HA, JaeEun Cha, Jin Myeong Yang, Inyong Yeo
  • Publication number: 20180069424
    Abstract: A method and apparatus for controlling an on-board charger (OBC) are provided. The method includes monitoring a voltage of an input power source, increasing or decreasing the voltage of the input power source to a preset output voltage of a power factor corrector (PFC), and operating a converter receiving the output voltage to adjust a switching frequency of the converter based on ripple current of an output terminal. Additionally, the converter includes a first switch configured to receive a first voltage of a first capacitor mounted within the PFC and a second switch configured to receive a second voltage of a second capacitor mounted within the PFC.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 8, 2018
    Inventors: Si Hun Yang, Woo Young Lee, Jun Ho Kim, Young Jin Kim, Jin Myeong Yang, Jin Young Yang
  • Publication number: 20180054195
    Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC(silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.
    Type: Application
    Filed: November 21, 2016
    Publication date: February 22, 2018
    Applicant: Hyundai Motor Company
    Inventors: Dae Woo LEE, Jin Myeong YANG, In Yong YEO, Jin Young YANG, Youn Sik LEE, Byeong Seob SONG, Woo Young LEE
  • Publication number: 20180041133
    Abstract: A single direct current (DC)-DC converter may include a switching part switching an input DC voltage; first and second transforming parts transforming an output of the switching part; a rectifying part rectifying outputs of each of the first and second transforming parts; and an output part filtering and outputting an output of the rectifying part.
    Type: Application
    Filed: November 18, 2016
    Publication date: February 8, 2018
    Applicant: Hyundai Motor Company
    Inventors: Si Hun YANG, Woo Young LEE, Young Jin KIM, Jin Young YANG, Jin Myeong YANG, Gyu Yeong CHOE
  • Publication number: 20170349054
    Abstract: An integrated module of an OBC and an inverter includes: an OBC primary side circuit and a plurality of transformers converting, when 3-phase alternating current (AC) voltages are received from a fuel station, the 3-phase AC voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 7, 2017
    Inventors: Jin Myeong YANG, Si Hun YANG, Gyu Yeong CHOE, Jin Young YANG, Han Geun JANG, Woo Young LEE
  • Publication number: 20170170735
    Abstract: A resonant converter system is provided. The resonant converter system includes a secondary side of a transformer that is disposed within an LLC resonant converter. The secondary side of the transformer is configured with a single coil. Additionally, a rectifier of a secondary side of the LLC resonant converter includes a single diode.
    Type: Application
    Filed: April 25, 2016
    Publication date: June 15, 2017
    Inventors: Si Hun Yang, Woo Young Lee, Young Jin Kim, Jin Young Yang, Jin Myeong Yang, Gyu Yeong Choe
  • Patent number: 9632118
    Abstract: A current sensing apparatus includes: a temperature sensor configured to sense a temperature of a power converter; a current sensing unit configured to sense an input current of the power converter; and a central processing unit (CPU) configured to control an operation of the power converter in response to the sensed temperature of the power converter and the sensed input current of the power converter. The CPU includes a compensation unit configured to store, upon receiving an indication of the sensed temperature of the power converter from the temperature sensor, an operation voltage of at least one diode included in the current sensing unit in a map, and to compensate for an error of a sensing current based on the stored operation voltage when the current sensing unit senses the input current.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: April 25, 2017
    Assignee: Hyundai Motor Company
    Inventors: Jin Myeong Yang, Youn Sik Lee, Je Hwan Lee, Seong Min Lee, Sang Cheol Shin, Han Geun Jang