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:
Jan. 16, 2001
Filed:
Mar. 03, 2000
Giancarlo Clerici, Vimodrone, IT;
Luciano Tomasini, Monza, IT;
STMicroelectronics, S.r.l., Agrate Brianza, IT;
Abstract
A fully differential amplifier, in other words one having differential inputs and outputs, is associated with a circuit to regulate the output voltage reference. This circuit contains a resistive divider connected between the output terminals of the differential amplifier, a diode between the intermediate connection of the divider and common bases of load transistors of the differential amplifier, and a current mirror having a first branch connected to a reference voltage generator and a second branch which forms a current generator connected between the common bases of the load transistors and ground. This provides an efficient feedback control system with low power consumption and takes up less space on an integrated circuit.