Patents by Inventor JEFF ZEE

JEFF ZEE 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).

  • Two-stage low-dropout frequency-compensating linear power supply systems and methods
    Patent number: 9753473
    Abstract: Aspects of the present invention include a low-dropout (LDO) linear power supply system. The system includes a pass-element configured to generate an output voltage at an output based on an input voltage. The system also includes a compensation amplifier stage coupled to the output and configured to provide frequency compensation and provide a desired frequency response of the output voltage. The system further includes a gain amplifier stage interconnecting the compensation amplifier stage and the pass-element and configured to provide DC gain scaling to generate the output voltage substantially proportional to the input voltage within a given range of the input voltage.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: September 5, 2017
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Fang Dong Tan, Jeff Zee
  • TWO-STAGE LOW-DROPOUT LINEAR POWER SUPPLY SYSTEMS AND METHODS
    Publication number: 20140091775
    Abstract: Aspects of the present invention include a low-dropout (LDO) linear power supply system. The system includes a pass-element configured to generate an output voltage at an output based on an input voltage. The system also includes a compensation amplifier stage coupled to the output and configured to provide frequency compensation and provide a desired frequency response of the output voltage. The system further includes a gain amplifier stage interconnecting the compensation amplifier stage and the pass-element and configured to provide DC gain scaling to generate the output voltage substantially proportional to the input voltage within a given range of the input voltage.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 3, 2014
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: FANG DONG TAN, JEFF ZEE