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:
Jul. 02, 2013
Filed:
Dec. 09, 2011
Remi Corbiere, Paris, FR;
Bruno Louis, Saint Maur, FR;
Vincent Petit, Bazainville, FR;
Thales, Neuilly sur Seine, FR;
Abstract
A differential amplifier including an input of a balanced type relative to a reference potential; a balanced output; first and second bipolar transistors mounted in common emitter configuration, emitters of the first and second transistors linked by two feedback impedances in series; and a perfect current generator, wherein an impedance Zat the terminals of the current generator is connected between a common point of the two feedback impedances and the reference potential, the input is connected to a base of the first transistor, a base of the second transistor is linked to the reference potential to form, with a base of the first transistor, the unbalanced input, the balanced output is produced by collectors of the first and second transistors through an impedance matching stage of the output, a correction feedback impedance Z, wherein Z=2·Zg, connects the collector of the second transistor and the base of the first transistor.