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:
Sep. 23, 2003
Filed:
Dec. 21, 2001
Pierangelo Confaloneri, Caponago, IT;
Angelo Nagari, Cilavegna, IT;
Germano Nicollini, Piacenza, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
The buffer has an output stage formed by two complementary MOS transistors connected so as to operate in phase opposition between the supply terminals and two driver stages having the input in common. Each driver stage has a first branch comprising a current-generator connected between the gate electrode of the transistor to be driven and a supply terminal and an electronic switch controlled by the input and connected between the same gate electrode and the other supply terminal, and a second branch which comprises, connected in series, a transistor connected as a diode and an electronic switch controlled by the output, and is arranged between the gate electrode of the transistor to be driven and a respective supply terminal. The buffer can control a load with a constant switching current, is simple in structure, and occupies a small area.