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:
Dec. 20, 1988
Filed:
Sep. 08, 1987
Applicant:
Inventors:
Sylvain Cuman, Champagnier, FR;
Philippe J Moreau, Voiron, FR;
Assignee:
Merlin Gerin, Grenoble, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 16 ; 363 56 ; 363 95 ; 363134 ; 361 91 ;
Abstract
An inverter arm is made up of two transistors electrically connected in series, each transistor having its own independent control unit. The control units are supplied by a common power supply unit ensuring galvanic insulation by means of a transformer with two distinct secondary windings. This galvanic insulation allows a potential difference of several hundred volts between the transistors and their control circuit.