Global Patent Index - EP 0275582 B1

EP 0275582 B1 19911121 - CURRENT MIRROR CIRCUIT

Title (en)

CURRENT MIRROR CIRCUIT

Publication

EP 0275582 B1 19911121 (DE)

Application

EP 87202445 A 19871208

Priority

DE 3642167 A 19861210

Abstract (en)

[origin: US4812734A] A current-mirror arrangement comprising a first branch including two series-connected diodes and a second branch including the series-connected base-emitter paths of two transistors. The ratio between the input and output currents of the current mirror is proportional to the root of the current-gain factor of the transistors.

IPC 1-7

G05F 3/26

IPC 8 full level

G05F 3/26 (2006.01)

CPC (source: EP US)

G05F 3/265 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

DE 3642167 A1 19880630; DE 3774686 D1 19920102; EP 0275582 A1 19880727; EP 0275582 B1 19911121; JP 2628663 B2 19970709; JP S63157215 A 19880630; US 4812734 A 19890314

DOCDB simple family (application)

DE 3642167 A 19861210; DE 3774686 T 19871208; EP 87202445 A 19871208; JP 30975287 A 19871209; US 12526287 A 19871125