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:
Oct. 29, 2013
Filed:
Nov. 28, 2011
Andreas Jeppe, Kaufungen, DE;
Henrik Wolf, Kassel, DE;
Torben Westphal, Kassel, DE;
Sven Bremicker, Alheim, DE;
Frank Greizer, Kaufungen, DE;
Adrian Haering, Niestetal, DE;
Andreas Jeppe, Kaufungen, DE;
Henrik Wolf, Kassel, DE;
Torben Westphal, Kassel, DE;
Sven Bremicker, Alheim, DE;
Frank Greizer, Kaufungen, DE;
Adrian Haering, Niestetal, DE;
SMA Solar Technology AG, Niestetal, DE;
Abstract
In an overvoltage protection apparatus before an inverter configured to feed electric energy from a DC voltage source into an AC power grid, the overvoltage protection apparatus includes a DC voltage input stage. The DC voltage input stage includes at least two current-carrying lines and an EMC filter including interference suppressing capacitors and interference suppressing inductors, and surge arrestors configured to divert overvoltages with respect to ground are connected to the current-carrying lines after the EMC filter, from a point of view of the DC voltage source.