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:
Aug. 14, 1990
Filed:
Feb. 15, 1989
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 56 ; 361 58 ; 361 91 ; 361111 ; 357 2313 ;
Abstract
A circuit configuration for protecting an integrated circuit from damage by a voltage present at an output exceeding the supply voltage range of the integrated circuit includes a given number of parasitic circuit structures of the integrated circuit. Additional circuit structures combined with the parasitic circuit structures form a protective circuit. The circuit structures are activated by the voltage at the output to become operative for protection.