Patents by Inventor DEOKYOUNG LIM

DEOKYOUNG LIM 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).

  • Method for controlling temperature of inverter system by controlling a fan
    Patent number: 9867314
    Abstract: A method for controlling temperature of an inverter system having an inverter and a cooling fan is provided, the method including: obtaining an internal temperature of the inverter and a DC (Direct Current)-link voltage of the inverter; and outputting a fan driving control signal for driving the fan or maintaining the fan being driven to the fan, when the internal temperature is above a predetermined fan drive setting temperature and the DC-link voltage is above a predetermined fan drive setting voltage.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 9, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Deokyoung Lim, Chun Suk Yang
  • Inverter assembly without galvanic isolation
    Patent number: 9577507
    Abstract: Disclosed is an inverter assembly without galvanic isolation, the inverter assembly including a PCB mounted with a power supply circuit unit, an inverter unit, an analogue circuit unit and a controller, a first ground circuit pattern to supply a ground power to the power supply circuit unit and the inverter unit, a second ground circuit pattern to supply the ground power to the analogue circuit unit, a third ground circuit pattern to supply the ground power to the controller, a first bead between the first ground circuit pattern and the second ground circuit pattern to isolate an impedance between the first ground circuit pattern and the second ground circuit pattern, and a second bead between the second ground circuit pattern and the third ground circuit pattern to isolate an impedance between the second ground circuit pattern and the third ground circuit pattern.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 21, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Deokyoung Lim, Chun Suk Yang
  • INVERTER ASSEMBLY WITHOUT GALVANIC ISOLATION
    Publication number: 20160028300
    Abstract: Disclosed is an inverter assembly without galvanic isolation, the inverter assembly including a PCB mounted with a power supply circuit unit, an inverter unit, an analogue circuit unit and a controller, a first ground circuit pattern to supply a ground power to the power supply circuit unit and the inverter unit, a second ground circuit pattern to supply the ground power to the analogue circuit unit, a third ground circuit pattern to supply the ground power to the controller, a first bead between the first ground circuit pattern and the second ground circuit pattern to isolate an impedance between the first ground circuit pattern and the second ground circuit pattern, and a second bead between the second ground circuit pattern and the third ground circuit pattern to isolate an impedance between the second ground circuit pattern and the third ground circuit pattern.
    Type: Application
    Filed: June 19, 2015
    Publication date: January 28, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Deokyoung LIM, Chun Suk YANG
  • METHOD FOR CONTROLLING TEMPERATURE OF INVERTER SYSTEM BY CONTOLLING A FAN
    Publication number: 20150366104
    Abstract: A method for controlling temperature of an inverter system having an inverter and a cooling fan is provided, the method including: obtaining an internal temperature of the inverter and a DC (Direct Current)-link voltage of the inverter; and outputting a fan driving control signal for driving the fan or maintaining the fan being driven to the fan, when the internal temperature is above a predetermined fan drive setting temperature and the DC-link voltage is above a predetermined fan drive setting voltage.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Applicant: LSIS CO., LTD.
    Inventors: DEOKYOUNG LIM, CHUN SUK YANG