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:
Feb. 25, 1992
Filed:
Jan. 31, 1991
Applicant:
Inventors:
Walter S Duspiva, Port Ewen, NY (US);
John B Gillett, Woodstock, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 15 ; 363 21 ; 363 26 ;
Abstract
In a regulated power supply, particularly a pulse-width-modulated supply, the on-off control is located in the feedback path between the supply output terminal and the pulse-width-modulator. Transformer coupled polling pulses sense both the state of the on-off control and the magnitude of the feedback error signal.