Patents by Inventor Chi Hoon Jung

Chi Hoon Jung 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).

  • Output feedback frequency control device for rotating machine speed control
    Patent number: 8478434
    Abstract: Provided are an output feedback frequency control device and a speed governor using the same. The output feedback frequency control device includes an integral control unit configured to generate an integral control signal by using a predetermined integral control constant (KI) and an integral quantity of an angular velocity deviation (??) of an external device, a differential control unit configured to generate a differential control signal by using a predetermined differential control constant (KD), the angular velocity deviation (??) of the external device, and the mechanical power (?Pm) of the external device, and a proportional control unit configured to generate a control input (u) for control of an operation speed of the external device by using the angular velocity deviation of the external device, the integral control signal generated by the integral control unit, the differential control signal generated by the differential control unit, and a predetermined control constant (R).
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 2, 2013
    Inventors: Young Hyun Moon, Chi Hoon Jung
  • OUTPUT FEEDBACK FREQUENCY CONTROL DEVICE FOR ROTATING MACHINE SPEED CONTROL
    Publication number: 20120191224
    Abstract: Provided are an output feedback frequency control device and a speed governor using the same. The output feedback frequency control device includes an integral control unit configured to generate an integral control signal by using a predetermined integral control constant (K1) and an integral quantity of an angular velocity deviation (??) of an external device, a differential control unit configured to generate a differential control signal by using a predetermined differential control constant (KD), the angular velocity deviation (??) of the external device, and the mechanical power (?Pm) of the external device, and a proportional control unit configured to generate a control input (u) for control of an operation speed of the external device by using the angular velocity deviation of the external device, the integral control signal generated by the integral control unit, the differential control signal generated by the differential control unit, and a predetermined control constant (R).
    Type: Application
    Filed: January 25, 2011
    Publication date: July 26, 2012
    Inventors: Young Hyun Moon, Chi Hoon Jung
  • Fork
    Patent number: D746113
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: December 29, 2015
    Inventor: Chi Hoon Jung