Patents by Inventor ZACHERY S. BUCKLEY

ZACHERY S. BUCKLEY 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).

  • Converged motor drive control for brushless dc motor
    Patent number: 10594237
    Abstract: A system includes a timer to determine a time interval between successive commutation state changes of a brushless direct current (BLDC) motor. A speed calculator computes a speed of the BLDC motor based on the time interval. A threshold calculator determines a threshold based on the computed speed, the threshold specifying a calculation of back electromotive force (BEMF) and mutual inductance of the BLDC motor at a next state change of the BLDC motor. A state change trigger commands the next state change based on a measured voltage associated with a floating phase of the BLDC motor relative to the threshold.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: March 17, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Zachery S. Buckley, Seil Oh
  • CONVERGED MOTOR DRIVE CONTROL FOR BRUSHLESS DC MOTOR
    Publication number: 20180115263
    Abstract: A system includes a timer to determine a time interval between successive commutation state changes of a brushless direct current (BLDC) motor. A speed calculator computes a speed of the BLDC motor based on the time interval. A threshold calculator determines a threshold based on the computed speed, the threshold specifying a calculation of back electromotive force (BEMF) and mutual inductance of the BLDC motor at a next state change of the BLDC motor. A state change trigger commands the next state change based on a measured voltage associated with a floating phase of the BLDC motor relative to the threshold.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 26, 2018
    Inventors: ZACHERY S. BUCKLEY, SEIL OH