Patents by Inventor Pi Hsia Lin

Pi Hsia 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).

  • Controlling device for AC/DC driven motor
    Patent number: 6765359
    Abstract: A motor controlling device for an AC/DC driven motor is used for an AC and DC motor. The motor controlling device comprises an AC/DC converting unit, a voltage stabilizing unit, a phase detecting/controlling unit, and a high voltage driving unit. The AC/DC converting unit receives an AC power source to convert the AC power source into a high voltage DC voltage. The voltage stabilizing unit receives the high voltage DC voltage to convert it into a low voltage DC voltage. The phase detecting/controlling unit detects a polarity of the permanent magnet to output a first detecting and a second detecting signals accordingly, so as to provide automatically a shut down protection when the motor is locked. The high voltage driving unit receives the first detecting and the second detecting signals to drive the motor accordingly.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: July 20, 2004
    Assignees: Prolific Technology Inc.
    Inventor: Pi Hsia Lin
  • Controlling device for AC/DC driven motor
    Publication number: 20030071592
    Abstract: A motor controlling device for an AC/DC driven motor is used for an AC and DC motor. The motor controlling device comprises an AC/DC converting unit, a voltage stabilizing unit, a phase detecting/controlling unit, and a high voltage driving unit. The AC/DC converting unit receives an AC power source to convert the AC power source into a high voltage DC voltage. The voltage stabilizing unit receives the high voltage DC voltage to convert it into a low voltage DC voltage. The phase detecting/controlling unit detects a polarity of the permanent magnet to output a first detecting and a second detecting signals accordingly, so as to provide automatically a shut down protection when the motor is locked. The high voltage driving unit receives the first detecting and the second detecting signals to drive the motor accordingly.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 17, 2003
    Inventor: Pi Hsia Lin