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:
Apr. 21, 2009
Filed:
Sep. 20, 2007
Ulrich Theus, Gundelfingen, DE;
Juergen Kessel, Freiburg, DE;
Ulrich Theus, Gundelfingen, DE;
Juergen Kessel, Freiburg, DE;
MICRONAS GmbH, Freigburg, DE;
Abstract
A CMOS output stage operates in A/B push-pull mode and is driven with a control potential (ud) from a preamplifier stage via a control line (st). The control line (st) feeds the gate terminals of a complementary transistor pair (kt), the first transistor (n) of which is used as first push-pull output transistor and the second transistor (p) of which is connected to the gate terminal of a second push-pull output transistor (pa) via a current balancing arrangement. The source terminal of the first and of the second transistor (n, p) is connected to a first and, respectively, to a second fixed potential (u, u), the second fixed potential (u) being stabilised in a low-impedance manner by an active compensation circuit (K).