Now showing items 1-2 of 2

    • Digital power supply control 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Li, Jian H.; Xu, Ming Gang; Qiu, Yang (United States Patent and Trademark Office, 2010-04-27)
      A switched voltage regulator provides improved regulation at a lower clock rate/sampling frequency (e.g. several orders of magnitude lower than would be required for comparable regulation) while using a low resolution ...
    • Hybrid control methods for digital pulse width modulator (DPWM) 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Li, Jian H.; Xu, Ming Gang; Ha, Dong S.; Qiu, Yang (United States Patent and Trademark Office, 2009-08-04)
      A digital pulse width modulator leverages clock frequency to achieve very fine duty cycle resolution by using a constant number of time slots for each state of a pulse signal and varying the number of time slots in a ...