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:
May. 28, 1991
Filed:
Nov. 20, 1989
Applicant:
Inventors:
Joseph Foster, Rockford, IL (US);
Abdul Rashid, Rockford, IL (US);
Assignee:
Sundstrand Corporation, Rockford, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
307 84 ; 322 32 ;
Abstract
The problem of stabilizing operation of a load division control (74) is resolved using a phase angle counter circuit (90) which calculates phase angle insensitive to frequency changes of the output voltage waveform. The phase angle counter circuit (90) includes a series of counters (94, 96, 100 and 102) for calculating phase angle.
Foster, Joseph. (1991). Frequency insensitive digital phase angle measuring circuit (U.S. Patent No. 5019718). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5019718
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile