Global Patent Index - EP 0536063 B1

EP 0536063 B1 19950719 - Precision current generator.

Title (en)

Precision current generator.

Title (de)

Präzisionsstromgenerator.

Title (fr)

Générateur de courant précis.

Publication

EP 0536063 B1 19950719 (FR)

Application

EP 92420333 A 19920928

Priority

FR 9112278 A 19910930

Abstract (en)

[origin: EP0536063A1] The present invention relates to a current generator (Is), comprising a first bipolar transistor (Q1), the base of which is linked to a reference potential (Vref) and the emitter to a first power supply potential (G) through a first resistor (R1); a first current mirror (M1), the input of which is linked to the collector of the first transistor (Q1) and the output of which is linked to the control electrode of a second transistor (Q2); a third bipolar transistor (Q3), the collector of which is linked to the output of the first current mirror, the base of which is linked, on the one hand, to a main electrode of the second transistor (Q2) and, on the other hand, to a terminal of a second resistor (R2) whose other terminal is linked to the emitter of the third transistor (Q3); and a second current mirror (M2), the input of which is linked to the emitter of the third transistor (Q3) and the output of which (S) supplies the said current (Is). <IMAGE>

IPC 1-7

G05F 3/26

IPC 8 full level

G05F 3/26 (2006.01)

CPC (source: EP)

G05F 3/265 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

FR 2681961 A1 19930402; FR 2681961 B1 19950217; DE 69203559 D1 19950824; DE 69203559 T2 19960118; EP 0536063 A1 19930407; EP 0536063 B1 19950719

DOCDB simple family (application)

FR 9112278 A 19910930; DE 69203559 T 19920928; EP 92420333 A 19920928