Patents by Inventor Daewoong Han

Daewoong Han 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: 20250122061
    Abstract: A platform system includes a station including a moving portion and a guide configured to guide movement of the moving portion, and a manipulator configured to pick up an object from the moving portion or to place the object on the moving portion, where the moving portion is configured to move in response to the manipulator picking up the object from the moving portion or placing the object on the moving portion.
    Type: Application
    Filed: October 7, 2024
    Publication date: April 17, 2025
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: DAEWOONG HAN, SEUNGYEON KIM, Minsu CHANG, JUN-WON JANG, TAESIN HA
  • Patent number: 9660524
    Abstract: A DC-DC converter and a method for estimating output current of a DC-DC converter are provided. The method includes measuring, by a controller, input voltage and output voltage of the DC-DC converter and measuring output voltage of a current transformer (CT) included in the DC-DC converter. In addition, the method includes compensating, by the controller, for the output voltage based on the relationship between the measured output voltage and CT output voltage and compensating for the input voltage by measuring the input current of the DC-DC converter based on the output current of the DC-DC converter into the CT output voltage converted through the current transformer and using an output current map composed of the output voltage and the measured CT voltage. In addition, the output current is estimated using the compensated output voltage and input voltage.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 23, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Daewoong Han, Sangkyu Lee, Jaehwa Jeon, Jeongbin Yim
  • Publication number: 20140365151
    Abstract: A DC-DC converter and a method for estimating output current of a DC-DC converter are provided. The method includes measuring, by a controller, input voltage and output voltage of the DC-DC converter and measuring output voltage of a current transformer (CT) included in the DC-DC converter. In addition, the method includes compensating, by the controller, for the output voltage based on the relationship between the measured output voltage and CT output voltage and compensating for the input voltage by measuring the input current of the DC-DC converter based on the output current of the DC-DC converter into the CT output voltage converted through the current transformer and using an output current map composed of the output voltage and the measured CT voltage. In addition, the output current is estimated using the compensated output voltage and input voltage.
    Type: Application
    Filed: December 23, 2013
    Publication date: December 11, 2014
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventors: Daewoong Han, Sangkyu Lee, Jaehwa Jeon, Jeongbin Yim
  • Patent number: 8451045
    Abstract: An inverter control apparatus is provided that offers a ‘soft turn off’ to a gate operation of the inverter so as to securely protect the IGBT. In particular, an inverter control system according to the present invention may include a gate operating portion that controls turn on/off of an IGBT and forcibly turns off the IGBT if a short circuit or an over current is detected from the IGBT, a current buffer that amplifies a control current for the turn on/off of the IGBT that is outputted from the gate operating portion, and a filter that delays the forcible turn off control current that is outputted from the gate operating portion.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: May 28, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeongbin Yim, Daewoong Han, Gu Bae Kang, Byungsoon Min
  • Patent number: 8385044
    Abstract: A film capacitor is provided that includes a case in which a film cell is incorporated and a heat radiating plate including a heat absorption unit being positioned adjacent to the film cell while not being in contact with the film cell for absorbing heat and a heat radiating unit being exposed to the outside of the case. Preferred film capacitors can perform a stable operation and have durable lifespan, even when an inverter adopting the film capacitor is mounted on a trunk room and an engine room, by effectively cooling heat generated from a film cell of the film capacitor.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: February 26, 2013
    Assignees: Kia Motors Corporation, Hyundai Motor Company
    Inventors: Jeongyun Lee, Daewoong Han, Gubae Kang, Wooyong Jeon, In-Pil Yoo, Jeongbin Yim, Dongjin Nam, Jinhwan Jung, Junghong Joo
  • Publication number: 20120069618
    Abstract: An inverter control apparatus is provided that offers a ‘soft turn off’ to a gate operation of the inverter so as to securely protect the IGBT. In particular, an inverter control system according to the present invention may include a gate operating portion that controls turn on/off of an IGBT and forcibly turns off the IGBT if a short circuit or an over current is detected from the IGBT, a current buffer that amplifies a control current for the turn on/off of the IGBT that is outputted from the gate operating portion, and a filter that delays the forcible turn off control current that is outputted from the gate operating portion.
    Type: Application
    Filed: December 6, 2010
    Publication date: March 22, 2012
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventors: Jeongbin Yim, Daewoong Han, Gu Bae Kang, Byungsoon Min
  • Publication number: 20100128410
    Abstract: A film capacitor comprises a case in which a film cell is incorporated and a heat radiating plate including a heat absorption unit being positioned adjacent to the film cell while not being in contact with the film cell for absorbing heat and a heat radiating unit being exposed to the outside of the case. The film capacitor can perform a stable operation and has durable lifespan, even when an inverter adopting the film capacitor is mounted on a trunk room and an engine room, by effectively cooling heat generated from a film cell of the film capacitor.
    Type: Application
    Filed: October 21, 2009
    Publication date: May 27, 2010
    Applicants: Kia Motors Corporaion, Hyundai Motor Company
    Inventors: Jeongyun Lee, Daewoong Han, Gubae Kang, Wooyong Jeon, In-Pil Yoo, Jeongbin Yim, Dongjin Nam, Jinhwan Jung, Junghong Joo