Patents by Inventor Sheng-Hu Huang

Sheng-Hu Huang 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).

  • Control circuit of sensorless motor and control method thereof
    Patent number: 7884564
    Abstract: A control circuit of a sensorless motor includes a first coil, a second coil, a first switch circuit, a second switch circuit and an auxiliary switch circuit. The first switch circuit is electrically connected to the first coil and controls a direction of a current flowing through the first coil. The second switch circuit is electrically connected to the second coil and controls a direction of a current flowing through the second coil. The auxiliary switch circuit is electrically connected to and between the first coil and the second coil and controls the directions of the currents flowing through the first coil and the second coil by cooperating with the first switch circuit and the second switch circuit. A control method of a sensorless motor is also disclosed.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: February 8, 2011
    Assignee: Delta Electronics, Inc.
    Inventors: Sheng-Hu Huang, Chun-Lung Chiu
  • CONTROL CIRCUIT OF SENSORLESS MOTOR AND CONTROL METHOD THEREOF
    Publication number: 20080278104
    Abstract: A control circuit of a sensorless motor includes a first coil, a second coil, a first switch circuit, a second switch circuit and an auxiliary switch circuit. The first switch circuit is electrically connected to the first coil and controls a direction of a current flowing through the first coil. The second switch circuit is electrically connected to the second coil and controls a direction of a current flowing through the second coil. The auxiliary switch circuit is electrically connected to and between the first coil and the second coil and controls the directions of the currents flowing through the first coil and the second coil by cooperating with the first switch circuit and the second switch circuit. A control method of a sensorless motor is also disclosed.
    Type: Application
    Filed: February 8, 2008
    Publication date: November 13, 2008
    Inventors: Sheng-Hu HUANG, Chun-Lung Chiu