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. 03, 2012
Filed:
Aug. 12, 2009
Applicants:
Serge Pontarollo, Saint Egreve, FR;
Serge Ramet, Jarrie, FR;
Inventors:
Serge Pontarollo, Saint Egreve, FR;
Serge Ramet, Jarrie, FR;
Assignee:
STMicroelectronics (Grenoble) SAS, Grenoble, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An amplifier having an output stage with a complementary pair of first and second transistors each coupled to an output node of the amplifier; control circuitry arranged to provide a control signal at a control node of the first transistor based on the voltage at an input node of the amplifier; and adjustment circuitry arranged to adjust the control signal to maintain the current through the first transistor above a minimum value.