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:
Feb. 12, 2008
Filed:
Oct. 06, 2005
Paul Brucke, Munich, DE;
Helmut Fischer, Oberhaching, DE;
Paul Brucke, Munich, DE;
Helmut Fischer, Oberhaching, DE;
Infineon Technologies AG, Munich, DE;
Abstract
A prestage for generating a control signal for an output driver of an integrated circuit, wherein the integrated circuit can be provided with a reference potential and a supply potential fixed in relation to the reference potential, comprises an input for receiving an input signal from the integrated circuit, a circuitry for generating an output signal based on the received input signal, an output for outputting the generated output signals as control signal for an output driver as well as a current source, which is effectively connected to the circuitry. Thereby, the circuitry for generating an output signal and the current source are connected in series and connected to a first potential and a second potential such that a prestage potential difference across the series circuit is higher than a supply potential difference between the supply potential and the reference potential. Such a prestage has the advantage that it is less sensitive against variations on the reference potential or the reference potential, respectively, than conventional circuitries and can generate an output signal with well defined rise times.