Patents by Inventor Tsai-Wang Hung

Tsai-Wang Hung 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).

  • Systems and method for controlling electric motors
    Patent number: 8618756
    Abstract: A method for controlling a permanent magnet synchronous motor is disclosed. The method comprises receiving a feedback current from a motor; generating a digital current signal based on the feedback current, the digital current signal indicative of a value of the feedback current; generating a power signal and a first imaginary power signal based on the digital current signal and a three-phase voltage signal; receiving a speed signal indicative of an expected speed of the motor; generating a phase signal based on the speed signal and the power signal; generating a voltage signal based on the speed signal, the power signal, and the first imaginary power signal; and adjusting the three-phase voltage signal for driving the motor based on the voltage signal and the phase signal.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 31, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Tsai-Wang Hung, Hsin-Ming Su
  • SYSTEMS AND METHOD FOR CONTROLLING ELECTRIC MOTORS
    Publication number: 20130154528
    Abstract: A method for controlling a permanent magnet synchronous motor is disclosed. The method comprises receiving a feedback current from a motor; generating a digital current signal based on the feedback current, the digital current signal indicative of a value of the feedback current; generating a power signal and a first imaginary power signal based on the digital current signal and a three-phase voltage signal; receiving a speed signal indicative of an expected speed of the motor; generating a phase signal based on the speed signal and the power signal; generating a voltage signal based on the speed signal, the power signal, and the first imaginary power signal; and adjusting the three-phase voltage signal for driving the motor based on the voltage signal and the phase signal.
    Type: Application
    Filed: May 22, 2012
    Publication date: June 20, 2013
    Inventors: Tsai-Wang Hung, Hsin-Ming SU