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:
Jun. 08, 2004
Filed:
Apr. 24, 2002
Applicant:
Inventor:
Dejan Schreiber, Zirndorf, DE;
Assignee:
Semikron Elektronik GmbH, Nuremberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/458 ;
U.S. Cl.
CPC ...
H02M 5/458 ;
Abstract
The invention relates to a frequency converter for an energy flow from a three-phase network to a consumer for medium and high output voltages, with variable frequency, current and voltage outputs, fed from secondary windings of a transformer with one or more cells per output phase (R, S, T). For each output phase, each identical cell has a diode input rectifier circuit, an active harmonic filter, an intermediate-circuit capacitance, and a three-point DC/AC converter on the output side.