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:
Jul. 01, 1986
Filed:
Feb. 27, 1984
Applicant:
Inventors:
Donald G Fair, Belvidere, IL (US);
Pandipati R Chetty, Gaithersburg, MD (US);
Assignee:
Sundstrand Corporation, Rockford, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 49 ; 363 56 ; 363 97 ;
Abstract
A soft-start control for use with a push-pull converter-regulator having a flux balancing circuit. The push-pull converter is responsive to a pulse width modulated waveform to provide a DC output, the converter having an error amplifier for comparing the DC output to a reference signal to vary the duty cycle of the pulse width modulated waveform. The soft-start circuit provides a varying reference signal to the error amplifier, the reference signal gradually increasing from zero to a predetermined level during the start-up of the converter.