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:
May. 23, 2000
Filed:
Aug. 20, 1998
Applicant:
Inventor:
Uyen Thuy Nguyen, Villefontaine, FR;
Assignee:
Gec Alsthom Transport SA, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ; H02M / ; H02M / ; H02M / ;
U.S. Cl.
CPC ...
363 17 ; 363 26 ; 363 41 ; 363 98 ; 363132 ;
Abstract
A direct current to direct current power converter device includes a transformer having a primary winding and at least one secondary winding. A first inverter is connected to the terminals of the primary winding of the transformer. At least one second inverter is connected to the terminals of the secondary winding of the transformer or of each secondary winding of the transformer. The first inverter or the at least one second inverter assures the inverter function when a voltage to be converted is applied to its terminals and the rectifier function when the voltage to be converted is applied to the at least one second inverter or to the first inverter.