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:
Nov. 20, 2012
Filed:
Dec. 22, 2006
Heribert Schmidt, Freiburg, DE;
Bruno Burger, Freiburg, DE;
Heribert Schmidt, Freiburg, DE;
Bruno Burger, Freiburg, DE;
Abstract
The invention relates to a circuit arrangement for producing an alternating voltage or an alternating current from a unipolar direct current source having an inverter relating to a neutral conductor. The direct current source is connected to an inverter which converts the unipolar voltage of the direct current source into a bipolar intermediate circuit voltage that is stored in a buffer circuit (C, C) which is connected to the inverter. The inverter comprises a clocked switch (S) and an energy converting unit which is configured as a dual coil (DR,DR) having two windings (W,W) which are closely coupled to each other.