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. 12, 2011
Filed:
Feb. 05, 2008
Applicant:
Erkki Miettinen, Kokemäki, FI;
Inventor:
Erkki Miettinen, Kokemäki, FI;
Assignee:
ABB Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and an arrangement for controlling an inverter provided with a voltage intermediate circuit, the inverter () comprising two or more sub-inverters (A,B,C), each being connected with a specific cable to feed a common load () and each sub-inverter (A,B,C) receiving the same switch instruction pattern. The method comprises the steps of determining the magnitude of a time delay, and consecutively generating, with each sub-inverter (A,B,C), an output voltage according to the switch instruction for the load () such that each sub-inverter generates an output voltage according to the switch instruction after a time equal to the time delay.