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:
Jan. 18, 2011
Filed:
Aug. 20, 2007
Toni Itkonen, Lappeenranta, FI;
Mika Ikonen, Lappeenranta, FI;
Kimmo Rauma, Vaasa, FI;
Stefan Strandberg, Vörå, FI;
Jorma Vesti, Vaasa, FI;
Toni Itkonen, Lappeenranta, FI;
Mika Ikonen, Lappeenranta, FI;
Kimmo Rauma, Vaasa, FI;
Stefan Strandberg, Vörå, FI;
Jorma Vesti, Vaasa, FI;
Vacon OYJ, Vasa, FI;
Abstract
A method and a parallel connection arrangement for equalizing the output powers of power converter units (INU, INU), in which power converter units is a semiconductor switch bridge controlled with pulse width modulation, and in which is a control unit arrangement (CU, CU) for forming control pulses, with which the semiconductor switches are controlled. The control unit arrangement delays the falling edge of the control pulses of at least one semiconductor switch of at least one power converter unit.