Patents by Inventor Dahn Trinh

Dahn Trinh 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).

  • Cell monitoring and balancing
    Patent number: 8274261
    Abstract: A method for monitoring the voltage of each of a plurality of cells of a battery pack is provided. The method may include monitoring a voltage potential for each of a plurality of cells in a battery pack utilizing a single channel of battery control unit within the battery pack. If, during discharge of the battery, e.g., the battery is being used to power a hand tool, the voltage potential of any cell is determined by the battery control unit to be below a predetermined minimum voltage, the battery control unit discontinues a current flow from battery pack to the tool. Additionally, during charging of the battery pack, if a voltage differential between any one of the cells and any other one of the cells is determined to be above a predetermined maximum differential, the battery control unit reduces the voltage potential stored in the cell having the higher voltage potential.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: September 25, 2012
    Assignee: Black & Decker Inc.
    Inventors: Andrew E. Seman, Jr., Nathan Cruise, Daniel J. White, David A. Carrier, Daniele C. Brotto, Dahn Trinh, Fugen Qin
  • CELL MONITORING AND BALANCING
    Publication number: 20090015206
    Abstract: A method for monitoring the voltage of each of a plurality of cells of a battery pack is provided. The method may include monitoring a voltage potential for each of a plurality of cells in a battery pack utilizing a single channel of battery control unit within the battery pack. If, during discharge of the battery, e.g., the battery is being used to power a hand tool, the voltage potential of any cell is determined by the battery control unit to be below a predetermined minimum voltage, the battery control unit discontinues a current flow from battery pack to the tool. Additionally, during charging of the battery pack, if a voltage differential between any one of the cells and any other one of the cells is determined to be above a predetermined maximum differential, the battery control unit reduces the voltage potential stored in the cell having the higher voltage potential.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 15, 2009
    Applicant: BLACK & DECKER INC.
    Inventors: Andrew E. Seman, JR., Nathan Cruise, Daniel J. White, David A. Carrier, Daniele C. Brotto, Dahn Trinh, Fugen Qin