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. 15, 1986
Filed:
Jan. 27, 1984
Applicant:
Inventors:
Wolfgang Hertrich, Aichtal, DE;
Volker Fritsch, Stuttgart, DE;
Assignee:
Euchner & Co., , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361101 ; 361 94 ; 361 98 ;
Abstract
A circuit arrangement for protecting a remotely controllable semi-conductor switch which closes to interrupt an alternating current circuit in order to protect against an overload is disclosed in which a flip-flop is connected to control the operation of a current control circuit connected to the output of the semi-conductor switch in the event of an overload or short-circuit condition in the AC circuit. Provision may also be made for transient overload conditions, as well as providing a visual indication of the conducting condition of the semi-conductor switch.