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:
Sep. 20, 2011
Filed:
Jul. 10, 2008
Bernd Engel, Wolfenbüttel, DE;
Regine Mallwitz, Kassel, DE;
Peter Zacharias, Kassel, DE;
SMA Solar Technology AG, Niestetal, DE;
Abstract
An inverter () for a grounded direct voltage source, in particular for a photovoltaic generator (), a battery or a fuel cell, for converting the direct voltage into an alternative voltage with a DC-DC converter () and a pulse inverter that is supplied by said DC-DC converter (), said DC-DC converter () being configured to be an oscillating circuit inverter and comprising a series resonant oscillating circuit, said DC-DC converter (), which is configured to be an oscillating circuit inverter, being configured to be a series-compensated oscillating circuit inverter with a choke (L) and a series-mounted capacitor array consisting of two or several oscillating circuit capacitors, a rectifier bridge branch including 2 diodes (D, D; D, D, . . . ), being connected to each of the partial oscillating circuit capacitors, said rectifier bridge branch being connected with its positive or its negative pole to output side intermediate circuit capacitors which are preferably connected in series so that said DC-DC converter () delivers at least two bipolar output voltages and is combined with the pulse inverter () with a divided voltage intermediate circuit that is supplied from the oscillating circuit inverter.