Patents by Inventor Zushu YAN

Zushu YAN 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).

  • Frequency compensation techniques for low-power and small-area multistage amplifiers
    Patent number: 8963639
    Abstract: A three stage amplifier is provided and the three stage amplifier comprises a first gain stage, a second gain stage and a third gain stage wherein said first stage receives an amplifier input signal and said third gain stage outputs an amplifier output signal. The amplifier includes a feedback loop having a current buffer and a compensation capacitance provided from the output of said third gain stage to the output of the first gain stage. In addition, an active left half plane zero stage is embedded in said feedback loop for cancelling a parasitic pole of said feedback loop.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: February 24, 2015
    Assignee: University of Macau
    Inventors: Zushu Yan, Pui-In Mak, Man-Kay Law, Rui Paulo da Silva Martins
  • FREQUENCY COMPENSATION TECHNIQUES FOR LOW-POWER AND SMALL-AREA MULTISTAGE AMPLIFIERS
    Publication number: 20140232465
    Abstract: A three stage amplifier is provided and the three stage amplifier comprises a first gain stage, a second gain stage and a third gain stage wherein said first stage receives an amplifier input signal and said third gain stage outputs an amplifier output signal. The amplifier includes a feedback loop having a current buffer and a compensation capacitance provided from the output of said third gain stage to the output of the first gain stage. In addition, an active left half plane zero stage is embedded in said feedback loop for cancelling a parasitic pole of said feedback loop.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 21, 2014
    Applicant: UNIVERSITY OF MACAU
    Inventors: Zushu YAN, Pui-In MAK, Man-Kay LAW, Rui Paulo da Silva MARTINS