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:
Dec. 05, 1995
Filed:
Jun. 28, 1994
Wilhelm Wilhelm, Munchen, DE;
Josef Hoelzle, Bad Woerishofen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A digital switching stage includes a differential amplifier having a first and a second differential amplifier branch. A first resistor is connected in the first differential amplifier branch and has a first terminal and a second terminal. The first terminal is a terminal for a first supply potential. A first bipolar transistor is connected in an emitter follower circuit with respect to the second terminal of the first resistor and has an emitter being connected to an output terminal. A second bipolar transistor has a base and has a collector-to-emitter path being connected between the output terminal and a terminal for a second supply potential. A second resistor is connected in the second differential amplifier branch and has a first terminal and a second terminal. The first terminal of the second resistor is connected to the output terminal and the second terminal of the second resistor is connected to the base of the second bipolar transistor.