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:
Jun. 26, 2001
Filed:
Apr. 15, 1999
Applicant:
Inventors:
Rolf Hubert, Bonn, DE;
Horea Stefan Culca, Siegburg, DE;
Assignee:
Moeller GmbH, Bonn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 9/00 ;
U.S. Cl.
CPC ...
H02J 9/00 ;
Abstract
A circuit configuration for a direct-voltage power pack of an electronically controlled switching device, particularly of a small programmable control system, which is externally supplied with voltage, having an arithmetic-logic unit, signal inputs and signal outputs. This circuit has a back-up supplier for the backup supply of the supply voltage and a detector for detecting the input voltage which is not backed up, the detector interacting with the arithmetic-logic unit in such a way that, in response to any voltage failure, the signal inputs are reliably prevented from being read in.