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:
May. 17, 2011
Filed:
Feb. 20, 2009
Peter Zacharias, Kassel, DE;
Benjamin Sahan, Kassel, DE;
Peter Zacharias, Kassel, DE;
Benjamin Sahan, Kassel, DE;
SMA Solar Technology AG, Niestetal, DE;
Abstract
The apparatus for feeding electrical energy into a power grid () with a DC voltage converter () intended for connection to a DC voltage generator () and with an inverter () connected thereto and intended for connection to a power grid (), wherein the inverter contains a bipolar voltage intermediate circuit with two capacitors (C, C) that are placed in series and are connected together at a ground terminal (E) intended for connection to a terminal of the DC voltage generator (). The DC voltage converter () comprises at least two diodes (D, D), one switch and one storage choke () which is charged by the DC voltage generator () when the switch is closed and is discharged via the capacitors (C, C) and the diodes (D, D) when the switch is open. On the one side, the storage choke () forms, together with two switches (S, S), a first electric circuit intended for charging said storage choke (), the electric circuit being adapted for connection to the DC voltage generator () by closing the switches (S, S) and that, on the other side, it lies, together with the two diodes (D, D) and the two capacitors (C, C), in a second electric circuit intended for simultaneously discharging of the storage choke () via both capacitors (C, C) and diodes (D, D), the second electric circuit being made operative by opening the switches (S, S).