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:
Jun. 16, 2009
Filed:
Mar. 13, 2007
Applicants:
Ignazio Martines, Tremestieri Etneo, IT;
Michele LA Placa, Cef Alu', IT;
Inventors:
Ignazio Martines, Tremestieri Etneo, IT;
Michele La Placa, Cef Alu', IT;
Assignee:
STMicroelectronics S.r.l., Agrate Brianza (MI), IT;
Primary Examiner:
Int. Cl.
CPC ...
H03B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An output buffer for providing a buffered current to a circuit load includes a plurality of operative stages, each one for generating a component of the buffered current and an enabling circuit for selectively enabling each operative stage. The output buffer further comprises at least one auxiliary stage and control means for measuring a control current that can be delivered by the at least one auxiliary stage and for activating the enabling means according to the measured control current.