Patents by Inventor Richard Kane Stair

Richard Kane Stair 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).

  • Passive cell-balancing with dynamic charge control
    Patent number: 10897143
    Abstract: A device for charging battery cells has conductive lines to be coupled to the battery cells, a charge control circuit coupled to the conductive lines to charge the battery cells, and to determine voltages of the battery cells, and switches to balance the voltages among the battery cells. In operation, the charge control circuit charges the battery cells while determining the voltages of the battery cells, and suspends from charging the battery cells before determining the voltages of the battery cells in a second stage.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 19, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Jing Zou, Qiong M. Li, Richard Kane Stair
  • PASSIVE CELL-BALANCING WITH DYNAMIC CHARGE CONTROL
    Publication number: 20200067324
    Abstract: A device for charging battery cells has conductive lines to be coupled to the battery cells, a charge control circuit coupled to the conductive lines to charge the battery cells, and to determine voltages of the battery cells, and switches to balance the voltages among the battery cells. In operation, the charge control circuit charges the battery cells while determining the voltages of the battery cells, and suspends from charging the battery cells before determining the voltages of the battery cells in a second stage.
    Type: Application
    Filed: December 20, 2018
    Publication date: February 27, 2020
    Inventors: Jing ZOU, Qiong M. LI, Richard Kane STAIR
  • Circuit and method to facilitate threshold voltage extraction and facilitate operation of a capacitor multiplier
    Patent number: 6806762
    Abstract: A system and method to extract a threshold voltage for a MOSFET include first and second stages, which include inputs that receive functionally related input currents, are connected to each other. The first stage includes a second input that is coupled to a corresponding input of the second stage through part of a voltage divider. Another part of the voltage divider is coupled between an internal gate node and the input of the second stage that receives the respective input current. The input of the second stage that receives the respective input current also provides an output voltage substantially equal to the threshold voltage for one or both of the MOSFETs.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: October 19, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Richard Kane Stair, Gabriel A. Rincon-Mora
  • Circuit and method to facilitate threshold voltage extraction and facilitate operation of a capacitor multiplier
    Publication number: 20030071675
    Abstract: A system and method to extract a threshold voltage for a MOSFET are disclosed. First and second stages, which include inputs that receive functionally related input currents, are connected to each other. The first stage includes a second input that is coupled to a corresponding input of the second stage through part of a voltage divider. Another part of the voltage divider is coupled between an internal gate node and the input of the second stage that receives the respective input current. The input of the second stage that receives the respective input current also provides an output voltage substantially equal to the threshold voltage for one or both of the MOSFETs.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Inventors: Richard Kane Stair, Gabriel A. Rincon-Mora