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:
Sep. 12, 2000
Filed:
Dec. 09, 1998
Applicant:
Inventors:
Joseph M Maurio, Waterford, CT (US);
Gregory A Duba, Stonington, CT (US);
Edgar S Thaxton, Bradford, RI (US);
Assignee:
Electric Boat Corporation, Groton, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ; H02M / ;
U.S. Cl.
CPC ...
388811 ; 388812 ; 318800 ;
Abstract
A high voltage, single-stage variable speed motor power supply utilizes direct AC-to-AC converters that do not have any intermediate DC link, along with a multi-level, multi-phase, multi-circuit variable speed motor drive and a motor in which a stator is wound with a number of multi-phase circuits. Each multi-phase circuit includes semiconductor switches arranged in drive switch pairs which are operated to produce an effective DC supply with the switches being controlled so that the most positive line-to-line source voltage is utilized for the inversion process.