Patents by Inventor Yi-Cherng LIN

Yi-Cherng LIN 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).

  • Estimating method for a rotor position of a motor and estimating device for the same
    Patent number: 9143068
    Abstract: An estimating method for a rotor position of a motor and an estimating device for the same are disclosed herein. The estimating method includes injecting a first high frequency signal to the motor at a first estimating angle, generating a first sensing signal of the motor in a period when the first high frequency signal is injected to the motor, injecting a second high frequency signal to the motor at a second estimating angle, generating a second sensing signal of the motor in a period when the second high frequency signal is injected to the motor, determining a quadrant of an operating angle according to the first sensing signal and the second sensing signal, and acquiring the rotor position according to the first sensing signal, the second sensing signal, and the quadrant of the operating angle.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: September 22, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Yi-Cherng Lin
  • ESTIMATING METHOD FOR A ROTOR POSITION OF A MOTOR AND ESTIMATING DEVICE FOR THE SAME
    Publication number: 20150042249
    Abstract: An estimating method for a rotor position of a motor and an estimating device for the same are disclosed herein. The estimating method includes injecting a first high frequency signal to the motor at a first estimating angle, generating a first sensing signal of the motor in a period when the first high frequency signal is injected to the motor, injecting a second high frequency signal to the motor at a second estimating angle, generating a second sensing signal of the motor in a period when the second high frequency signal is injected to the motor, determining a quadrant of an operating angle according to the first sensing signal and the second sensing signal, and acquiring the rotor position according to the first sensing signal, the second sensing signal, and the quadrant of the operating angle.
    Type: Application
    Filed: January 21, 2014
    Publication date: February 12, 2015
    Applicant: DELTA ELECTRONICS, INC.
    Inventor: Yi-Cherng LIN