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. 29, 1994
Filed:
Sep. 08, 1993
Applicant:
Inventor:
David J McCullough, Chicago, IL (US);
Assignee:
Trippe Manufacturing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 37 ; 363 49 ;
Abstract
A standby power supply system is provided which prevents saturation of magnetic components thereof during its initial start-up. The power supply system includes a variable frequency inverter that is responsive to control signals for generating an initial frequency which is higher than the frequency of the utility line voltage and which is swept down gradually to the frequency of the line voltage when a detected logic signal is at the low logic level.
Quick Actions:
McCullough, David. (1994). Standby power supply system having a variable frequency inverter (U.S. Patent No. 5369561). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5369561
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile