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:
Mar. 27, 2001
Filed:
Oct. 26, 1999
Hiromu Shiota, Mie, JP;
Kabushiki Kaisha Toshiba, Kanagawa-ken, JP;
Abstract
A transformer for a cycloconverter includes three single-phase transformers connected into a three-phase configuration. Each of the single-phase transformers includes a two-legged core, primary windings wound on at least one of legs of the two-legged core, and twelve secondary windings wound on at least one of the legs of the two-legged core. The secondary windings are connected to positive group converters and negative group converters of a three-phase output circulating current type cycloconverter composed of three single-phase output circulating current type cycloconverters connected in a three-phase configuration. Each of the single-phase output circulating current type cycloconverters includes two positive group converters and two negative group converters arranged in a twelve-pulse bridge configuration. The single-phase transformers include six sets of the secondary windings of the respective phases each of which sets is connected in a delta configuration and other six sets of the secondary windings each of which sets is connected in a wye configuration.