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:
Jan. 09, 2018
Filed:
Mar. 12, 2014
Applicant:
Sma Solar Technology Ag, Niestetal, DE;
Inventors:
Jens Friebe, Vellmar, DE;
Sebastian Bieniek, Niestetal, DE;
Assignee:
SMA Solar Technology AG, Niestetal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); H01H 9/54 (2006.01); H01L 31/02 (2006.01); H02H 3/08 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
H01H 9/54 (2013.01); H01L 31/02021 (2013.01); H02H 3/08 (2013.01); H02H 3/20 (2013.01); Y02E 10/50 (2013.01); Y10T 307/826 (2015.04); Y10T 307/858 (2015.04); Y10T 307/865 (2015.04);
Abstract
The disclosure relates to a safety device for a photovoltaic system for feeding into a power supply system, that includes at least one input for connection to a PV generator, at least one output for connection to an inverter, and a switching element for de-energizing the at least one output. The safety device includes an evaluating unit configured to switch the switching element based on a low-frequency signal at the at least one output. The disclosure also relates to a method for operating such a safety device.