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. 26, 1993
Filed:
Aug. 30, 1991
Burkhard Tigges, Balve, DE;
Herbert Sowa, Schwarzenberg, DE;
Werner Turck GmbH & Co. KG, Halver, DE;
Abstract
In an electronic switch, preferably operating with zero contact, an electronic load switch (3) is controlled by a sensor stage (1), with the switching elements being located in an IC circuit (200) between sensor stage (1) and load switch (3), said circuit (200) containing an inverter stage (7) which, when switched on and off, changes the operating mode of the switch from that of a 'closer' to that of an 'opener.' To reduce the number of IC contacts required for this purpose, provision is made such that switch input (10) for turning on inverter stage (7) is connected inside the IC to IC output (27) of second driver stage (12) and that this IC output (27) is connectable to the operating potential to change the 'opener' or 'closer' operating mode through an IC-external short-circuit jumper (28).