Patents by Inventor Ching-Chuan Lan

Ching-Chuan Lan 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).

  • Electric motor system and high-frequency harmonic suppressing device of the same
    Patent number: 10707680
    Abstract: The electric motor system of the present invention includes an electric motor and a driving device. The electric motor includes a grounded housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection. The driving device is connected with the multi-phase stator windings and includes a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit. The voltage stabilizing capacitor is connected with an output end of the rectifying circuit to provide a direct-current power source to a direct-current power source circuit. The high-frequency driving circuit is connected with the direct-current power source circuit and the multi-phase stator windings, and generates multi-phase driving signals to drive the multi-phase stator windings. A high-frequency harmonic suppressing device is connected with the neutral point and the direct-current power source circuit.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: July 7, 2020
    Assignee: KONG MING MOTOR CO., LTD.
    Inventor: Ching-Chuan Lan
  • ELECTRIC MOTOR SYSTEM AND HIGH-FREQUENCY HARMONIC SUPPRESSING DEVICE OF THE SAME
    Publication number: 20200006939
    Abstract: The electric motor system of the present invention includes an electric motor and a driving device. The electric motor includes a grounded housing, and multi-phase stator windings and a neutral point, which are disposed in the housing and form a star connection. The driving device is connected with the multi-phase stator windings and includes a rectifying circuit, a voltage stabilizing capacitor and a high-frequency driving circuit. The voltage stabilizing capacitor is connected with an output end of the rectifying circuit to provide a direct-current power source to a direct-current power source circuit. The high-frequency driving circuit is connected with the direct-current power source circuit and the multi-phase stator windings, and generates multi-phase driving signals to drive the multi-phase stator windings. A high-frequency harmonic suppressing device is connected with the neutral point and the direct-current power source circuit.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 2, 2020
    Inventor: Ching-Chuan LAN
  • Power supply system for computer
    Patent number: 7547996
    Abstract: A computer system includes a component, a power supply, and a direct current to direct current converter. The power supply provides a first direct current signal to the direct current to direct current converter. The direct current to direct current converter converts the first direct current signal into a second direct current signal, and provides the second direct current signal to the component.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: June 16, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ching-Chuan Lan
  • POWER SUPPLY SYSTEM FOR COMPUTER
    Publication number: 20070290662
    Abstract: A computer system includes a component, a power supply, and a direct current to direct current converter. The power supply provides a first direct current signal to the direct current to direct current converter. The direct current to direct current converter converts the first direct current signal into a second direct current signal, and provides the second direct current signal to the component.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 20, 2007
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHING-CHUAN LAN