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:
Dec. 04, 2007
Filed:
Nov. 14, 2005
Michele LA Placa, Cefalù, IT;
Ignazio Martines, Palermo, IT;
Michele La Placa, Cefalù, IT;
Ignazio Martines, Palermo, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
The output buffer stage includes a half-bridge output stage having a first pair of complementary drivers connected in series between a supply line and a ground node, the high impedance state or conduction state of which is determined through a pair of control phases. The buffer stage includes a pair of switches controlled by the control phases, connected in series between them and connecting the transistors of the first stage in series. Each driver is connected in series with a switch, that is quickly opened to prevent under-threshold currents from circulating when the respective driver is turned off, and that is rapidly turned off when the respective driver is turned on.