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:
Apr. 18, 1989
Filed:
Feb. 11, 1988
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 95 ; 363 96 ; 363 98 ;
Abstract
A control circuit for a 3-phase converter which is provided to control the 3-phase converter having an output filter provided with a current minor loop which controls an instantaneous value of the output current on the basis of a feedback signal obtained by converting the output current of the converter to d axis and q axis components by a synchronous revolutional coordinate system and a voltage major loop which controls the instantaneous value of the output voltage on the basis of a feedback signal obtained by converting the output voltage of the output filter to the d axis and q axis components; and realizes protection from overcurrent due to short-circuit of output.