Patents by Inventor Kraison Throngnumchai

Kraison Throngnumchai 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).

  • Power converter control
    Patent number: 7782005
    Abstract: In a power converter including an inverter configured to convert a direct current voltage into an alternating current voltage by controlling switching devices to be turned ON or OFF based on a control signal and to output the alternating current voltage to a load, a carrier wave frequency is changed. A command value is compensated in accordance with the changing carrier wave frequency. The control signal results from a comparison of the carrier wave with a compensated command value. As a result of the compensation, output fluctuations caused by an error voltage between the command value and an output voltage to the load can be suppressed.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: August 24, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kentaro Shin, Kraison Throngnumchai, Yasuaki Hayami, Toshihiro Kai
  • Power converter control and power conversion method
    Patent number: 7729146
    Abstract: A power converter and power conversion method wherein operation of a switching element is controlled by the frequency of a carrier wave where the frequency is varied such that the same frequency of the carrier wave is not repeated during a single modulation period.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 1, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuaki Hayami, Kraison Throngnumchai, Kentaro Shin
  • POWER CONVERTER CONTROL
    Publication number: 20080106919
    Abstract: In a power converter a command value is compensated in accordance with a change in a carrier wave frequency so that output fluctuations caused by an error voltage between the command value and an output voltage can be suppressed.
    Type: Application
    Filed: September 26, 2007
    Publication date: May 8, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kentaro Shin, Kraison Throngnumchai, Yasuaki Hayami, Toshihiro Kai
  • POWER CONVERTER CONTROL AND POWER CONVERSION METHOD
    Publication number: 20080089102
    Abstract: A power converter and power conversion method wherein operation of a switching element is controlled by the frequency of a carrier wave where the frequency is varied such that the same frequency of the carrier wave is not repeated during a single modulation period.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 17, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasuaki Hayami, Kraison Throngnumchai, Kentaro Shin