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:
Aug. 16, 1983
Filed:
Apr. 17, 1981
Applicant:
Inventor:
Michel Masselin, Velizy-Villacoublay, FR;
Assignee:
Alsthom-Atlantique, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
363141 ; 361385 ;
Abstract
A set of power semiconductors equipped with firing transformers and with protection circuits. Circuitry is disposed in such a way that the connections between the thyristor (2,3), the transformers (11) and the protection circuits (9,10) are shortened. To do this, the components (9, 10, 11) are disposed on circuit boards (7,8) whose planes are parallel to the axes of the columns (2,3) of thyristors. Applications to energizing railway traction motors.