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. 23, 1991
Filed:
Feb. 23, 1990
Michel Mouret, Jarry, FR;
SGS-Thomson Microelectronics S.A., Gentilly, FR;
Abstract
An output circuit compatible with TTL-type circuits, manufactured without Schottky devices comprises an intermediate stage (11) and an output stage (12). In the output stage, a first transistor (Q1) has its collector (C1) connected to the terminal (13) of the supply source through a resistor (R1) and its emitter (E1) connected to the output (S) through a diode (D1). A second transistor (Q2) has its collector (C2) connected to the output terminal (S) and its emitter (E2) connected to the terminal (14) of the supply source. A third transistor (Q3) has its emitter (E3) connected to the base (E2) of the second transistor (Q2) through a resistor (R4), its collector (C3) connected to the terminal (13) of the supply source and its base (B3) connected to the input terminal (A1). The intermediate stage is constituted by an inverter which controls the first transistor (Q1) in phase opposition with respect to the second transistor (Q2 ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile