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. 08, 2019
Filed:
Jan. 27, 2016
Applicant:
Sma Solar Technology Ag, Niestetal, DE;
Inventors:
Assignee:
SMA Solar Technology AG, Niestetal, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/18 (2006.01); G01R 19/00 (2006.01); H02S 50/10 (2014.01);
U.S. Cl.
CPC ...
G01R 15/18 (2013.01); G01R 15/183 (2013.01); G01R 19/0015 (2013.01); G01R 19/0092 (2013.01); H02S 50/10 (2014.12);
Abstract
A device for detecting alternating-current components iof an electric current iflowing in a direct-current circuit includes an inductor arranged in the direct-current circuit, and an AC path arranged electrically in parallel with the inductor, wherein the AC path comprises a series circuit made up of a capacitor and a primary winding of a transformer. The device further includes a voltage measuring device, wherein a secondary winding of the transformer is connected to the voltage measuring device via a low-pass filter circuit.