Patents by Inventor Woo-Young Lee

Woo-Young 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: 20180182445
    Abstract: A memory device may include first and second latch sections configured to respectively store a target address and a recent input address, a comparison unit configured to compare an input address with the target address and the recent input address respectively stored in the first and second latch sections, and output a resultant signal, a counting section configured to increase a count corresponding to the recent address stored in the second latch section in response to the resultant signal, and a control unit configured to check the count of the counting section and update the input address to the second latch section in response to the resultant signal.
    Type: Application
    Filed: October 9, 2017
    Publication date: June 28, 2018
    Inventors: Woo-Young LEE, Duck-Hwa HONG, Jung-Hyun KIM, Jae-Hoon CHA, Jeong-Tae HWANG
  • Publication number: 20180175270
    Abstract: Provided herein are a thermoelectric material and a method for preparing the same, wherein the thermoelectric material has excellent thermoelectric performance and high mechanical properties (in particular, fracture toughness), and thus, when the thermoelectric material is applied to a thermoelectric module, the thermoelectric module has excellent performance and efficiency and a long lifespan.
    Type: Application
    Filed: May 25, 2017
    Publication date: June 21, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Byung Wook KIM, Jong Kook LEE, Han Saem LEE, In Woong LYO, Jin Woo KWAK, Woo Young LEE, Gwan Sik KIM, Hwi Jong LEE
  • 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: 20180141443
    Abstract: A vehicle charging system includes a power transmitter including at least one voltage converter configured to allow a vehicle charging mode to be changed by a plurality of switches and a magnetic field generator configured to generate a magnetic field corresponding to a voltage converted by the voltage converter; and a power receiver including a current inductor configured to allow an electrical signal to be induced by the magnetic field generated by the magnetic field generator, a rectifier configured to rectify the induced electrical signal and a battery configured to be charged by the electrical signal rectified by the rectifier.
    Type: Application
    Filed: December 16, 2016
    Publication date: May 24, 2018
    Inventors: Woo Young LEE, Byeong Seob SONG, JaeEun CHA, Gyu Yeong CHOE, Minjung KIM, Jongeun BYUN, Minkook KIM, Dongmyoung JOO, Sangjoon ANN, Byoung Kuk 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: 20180109292
    Abstract: A reception pad for a wireless power transfer (WPT) system includes: a plate-shaped ferrite; an insulating layer disposed on one side of the ferrite; a first coil layer disposed on the insulating layer; an interlayer insulating layer disposed on the first coil layer; and a second coil layer disposed on the interlayer insulating layer. The insulating layer at least partially surrounds the first coil layer and the second coil layer, the first coil layer and the second coil layer at least partially overlap each other and are arranged in a rectangular ring form on the one side of the ferrite, and a ratio of a width which is larger between a first width of the first coil layer and a second width of the second coil layer to a first length of the ferrite in a width direction corresponding to the first width or the second width is 0.14 to 0.15.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 19, 2018
    Inventors: Woo Young Lee, Gyu Yeong Choe, Min Jung Kim, Min Kook Kim, Jong Eun Byeon, Min Hyuck Kang, Dong Gyun Woo, Byoung Kuk Lee, Dong Myoung Joo
  • Publication number: 20180070578
    Abstract: A wireless power transfer (WPT) control method using an object detection sensor, performed at a WPT apparatus, may include detecting whether or not an object exists between a transmission pad and a reception pad mounted on an electric vehicle (EV) using an object detection sensor; in response to detecting that an object does not exist between the transmission pad and the reception pad, controlling the transmission pad to perform WPT to the reception pad; and in response to detecting that an object exists between the transmission pad and the reception pad, generating ultrasonic waves using an ultrasonic wave generator.
    Type: Application
    Filed: September 7, 2017
    Publication date: March 15, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Research & Business Foundation Sungkyunkwan University
    Inventors: Gyu Yeong CHOE, Woo Young Lee, Min Kook Kim, Min Jung Kim, Byoung Kuk Lee
  • 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
  • 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: 20180061566
    Abstract: A trans inductor having a powdery magnetic substance and a power converter using the trans inductor are provided. The trans inductor and the power converter reduce peak current flowing in an inverter power module (IGBT), improve inverter efficiency, reduce output RMS current (output effective current) and reduce capacitor consumption by applying a material with properties that are resistant against current saturation instead of a core material of a conventional trans inductor employed in a power converter. Accordingly, an inductance decreasing rate due to core saturation when high current is generated is improved and current flowing in a switch device is prevented from being abruptly increased.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 1, 2018
    Inventors: Dae Woo Lee, Si Hun Yang, Jin Young Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
  • 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: 20180050124
    Abstract: The present invention relates to an air refining and purifying sterilization module and an air refining and purifying sterilizer including the same, and more particularly, to an air refining and purifying sterilization module and an air refining and purifying sterilizer including the same with excellent sterilization, purification, deodorization, and ventilation performance with respect to various pollutants generated in smoking rooms including tobacco smoke and carbon monoxide and every living spaces as improved catalyst performance. The present invention provides an air purifying sterilizer module in which the photocatalyst unit is formed of an alloy coated metal foam carried with a photocatalytic material and an air purifying sterilizer including the same in the air purifying sterilizer module including a filter unit, a photocatalyst unit, and an ultraviolet lamp.
    Type: Application
    Filed: November 27, 2015
    Publication date: February 22, 2018
    Applicant: PURESYS CO., LTD.
    Inventor: 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
  • Patent number: 9866130
    Abstract: A DC-DC converter includes: a clamp capacitor having one terminal connected with a ground terminal of a voltage source; a switching circuit including first and second switches connected with each other in series between a positive terminal and the ground terminal of the voltage source, and third and fourth switches connected with each other in series between both terminals of the clamp capacitor; and a forward-flyback transformer including a plurality of primary coils connected between a first connection node between the first and second switches and a second connection node between the third and fourth switches.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 9, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Jaehyuk Choi, Woo Young Lee, Seok Joon Kim, Jong Pil Kim, Sam Gyun Kim, Gun Woo Moon, Han Shin Youn, Jae Bum Lee, Jae Il Baek
  • 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
  • Patent number: 9837134
    Abstract: A semiconductor system includes a first semiconductor device and a second semiconductor device. The first semiconductor device outputs an external command. The second semiconductor device provides a first supply voltage to a bit line sense amplifier. The first supply voltage is generated by using a precharge voltage in response to the external command during a first time period from a point in time when a precharge mode begins. The second semiconductor device also adjusts a voltage level of the first supply voltage during a second time period from a point in time when the first time period terminates to a point in time when an active mode begins.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 5, 2017
    Assignee: SK hynix Inc.
    Inventor: Woo Young Lee
  • Patent number: 9789774
    Abstract: A device and method are provided for a charger for vehicles. In particular, the charger includes, an AC/DC converter configured to convert a commercial alternating current power source to a direct current power source and a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source. The direct current power source is supplied to a battery. The DC/DC converter includes a snubber circuit that reduces the magnitude of a ripple current of the charging power source.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: October 17, 2017
    Assignee: Hyundai Motor Company
    Inventors: Jin Young Yang, Dae Woo Lee, Jong Pil Kim, Si Hun Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
  • Patent number: 9781835
    Abstract: Provided is a printed circuit board including: an insulating layer; electronic devices embedded in the insulating layer; and an adhesive layer for fixing the electronic devices.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: October 3, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Won Suk Jung, Kyu Won Lee, Yun Ho An, Woo Young Lee
  • Publication number: 20170279309
    Abstract: A primary coil circuit of a ground assembly for wirelessly transferring power to a secondary coil includes: a primary coil magnetically coupled to the secondary coil and having a first terminal and a second terminal; a second capacitor having a first terminal and a second terminal connected to the first terminal of the primary coil; a first inductor having a first terminal coupled to a first input terminal of a power source and a second terminal coupled to the first terminal of the second capacitor; and a first capacitor having a first terminal coupled commonly to the second terminal of the first inductor and the first terminal of the second capacitor and a second terminal coupled commonly to the second terminal of the primary coil and a second input terminal of the power source.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 28, 2017
    Inventors: Woo Young Lee, Gyu Yeong Choe, Min Jung Kim, Min Kook Kim, Jong Eun Byeon, Min Hyuck Kang, Dong Gyun Woo, Byoung Kuk Lee, Dong Myoung Joo
  • Publication number: 20170264143
    Abstract: A wireless power transmission pad for transmitting wireless power to a reception pad including a secondary coil includes: a rectangular-shaped primary coil having an X-width defined in an x-direction and a Y-width defined in a y-direction and having a central space; a ferrite coupled to the primary coil; and a housing supporting the primary coil and the ferrite. A first cross-sectional area of a first portion including the X-width of the primary coil is smaller than a second cross-sectional area of a second portion including the Y-width of the primary coil.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 14, 2017
    Inventors: Woo Young Lee, Gyu Yeong Choe, Byoung Kuk Lee, Min Kook Kim, Dong Myoung Joo, Jong Eun Byeon, Min Hyuck Kang, Dong Gyun Woo, Min Jung Kim