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:
Nov. 07, 2000
Filed:
Nov. 27, 1996
Applicant:
Inventor:
Lewis Illingworth, Kensington, NH (US);
Assignee:
Avionic Instruments, Inc., Avenel, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323284 ; 323288 ; 327307 ; 327311 ;
Abstract
An improved coupling circuit for use in switched power supplies and other applications utilizes a DC restoration circuit following the secondary stage of a coupling transformer to maintain a relatively constant DC component in the coupled waveform, regardless of its duty cycle. Advantages of the invention include better frequency response, lower noise, and better linearity.