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. 09, 2002
Filed:
Apr. 06, 2001
Applicant:
Inventor:
Samuli Heikkilå, Helsinki, FI;
Assignee:
ABB Industries Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/00 ;
U.S. Cl.
CPC ...
H02M 7/00 ;
Abstract
An inverter arrangement which comprises two inverter units which comprise an intermediate voltage circuit and phase-specific switch components. The inverter arrangement also comprises phase-specific one-phase autotransformers, the first poles of which are connected to the phase-specific outputs of the first inverter unit and the second poles to the phase-specific outputs of the second inverter unit, and thus the output voltage of the inverter is obtained from the third poles of the autotransformers.