The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2002
Filed:
Nov. 24, 1999
Applicant:
Inventors:
F. Williams Sarles, Lexington, MA (US);
John Anthony DeGregorio, Dover, NH (US);
Assignee:
Enterasys Networks, Inc., Rochester, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/40 ;
U.S. Cl.
CPC ...
G05F 1/40 ;
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.