Patents by Inventor John Anthony DeGregorio

John Anthony DeGregorio 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).

  • Voltage threshold circuit for power conditioner
    Patent number: 6359426
    Abstract: A voltage threshold circuit for the power factor correction stage of a power conversion system is provide. The circuit features a voltage threshold circuit with a comparator for (i) comparing a predetermined threshold voltage to the output voltage of a power factor correction stage of a power conditioner and (ii) outputting a signal if the output voltage is at least equal to the predetermined threshold voltage. The presence of the signal decreases the predetermined threshold voltage, thereby effectively changing the output voltage above which the comparator continues to output the signal.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: March 19, 2002
    Assignee: Enterasys Networks, Inc.
    Inventors: F. Williams Sarles, John Anthony DeGregorio