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:
Jul. 19, 2016
Filed:
Aug. 01, 2011
Applicant:
Reinhard Voelger, Gross-Zimmern, DE;
Inventor:
Reinhard Voelger, Gross-Zimmern, DE;
Assignee:
HOTTINGER BALDWIN MESSTECHNIK GMBH, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01); H02H 3/20 (2006.01); H02H 9/04 (2006.01); H02H 9/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/20 (2013.01); H02H 9/005 (2013.01); H02H 9/04 (2013.01); H02H 9/041 (2013.01);
Abstract
A circuit for protecting an electronic functional unit connected to a data line against positive and negative overvoltages includes an analog switch arranged in the data line before the electronic functional unit and a voltage monitor, which is configured to control the analog switch, wherein the voltage monitor is configured to close the analog switch when no overvoltage occurs and to open the analog switch when an overvoltage occurs. The circuit also functions in an energy-saving mode and/or when no supply voltage is applied. The low resistance and bidirectionality of the data line are maintained.