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. 11, 1987
Filed:
May. 28, 1985
Walter Bucksch, Freising, DE;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A protective circuit arrangement is described for protecting semiconductor components connected to input and output terminals (10) against overvoltages in bipolar integrated circuits. The circuit arrangement contains at least one supply voltage terminal (12) and a ground terminal (14). Between the ground terminal (14) and at least the input and output terminals (10) which are connected to components sensitive to overvoltage a thyristor-tetrode (22) having a first control electrode (28) and a second control electrode (30) is inserted, the first control electrode (28) being connected to a line (18) which in the operative state of the integrated circuit lies at a voltage above the ground potential and the second control electrode (30) being connected to the ground terminal 14.