EP 2888815 A1 20150701 - ANALOGUE AMPLIFICATION DEVICE INTENDED IN PARTICULAR FOR A LASER ANEMOMETER
Title (en)
ANALOGUE AMPLIFICATION DEVICE INTENDED IN PARTICULAR FOR A LASER ANEMOMETER
Title (de)
ANALOGE VERSTÄRKUNGSVORRICHTUNG, INSBESONDERE FÜR EIN LASER-ANEMOMETER
Title (fr)
DISPOSITIF D'AMPLIFICATION ANALOGIQUE DESTINE NOTAMMENT A UN ANEMOMETRE LASER
Publication
Application
Priority
- FR 1257945 A 20120823
- FR 2013051944 W 20130814
Abstract (en)
[origin: WO2014029942A1] This analogue amplification device comprises -a first stage (28) with common-base transistor (36) receiving the modulated input current entering its emitter, and the output signal leaving this first stage corresponds to the signal of the collector, - a second stage (30) is formed by a follower amplifier comprising a transistor (38) with common drain or collector setup, a third stage (52) comprises a transistor (40) with common emitter setup, and - a fourth stage (34) is an amplifier stage with means making it possible to carry out, on the one hand, an amplification and, on the other hand, a matching of impedance. Application to a laser anemometer with optical retro-injection.
IPC 8 full level
H03F 3/08 (2006.01); H03F 3/45 (2006.01); H03F 3/50 (2006.01)
CPC (source: EP US)
G01P 5/26 (2013.01 - US); H03F 1/56 (2013.01 - US); H03F 3/087 (2013.01 - EP US); H03F 3/45071 (2013.01 - US); H03F 3/45475 (2013.01 - EP US); H03F 3/50 (2013.01 - EP US); H03F 2200/285 (2013.01 - EP US); H03F 2200/405 (2013.01 - EP US); H03F 2200/42 (2013.01 - EP US); H03F 2200/54 (2013.01 - US); H03F 2200/555 (2013.01 - EP US); H03F 2200/69 (2013.01 - EP US); H03F 2200/72 (2013.01 - EP US); H03F 2203/45051 (2013.01 - US); H03F 2203/45112 (2013.01 - US); H03F 2203/45528 (2013.01 - EP US); H03F 2203/45544 (2013.01 - EP US); H03F 2203/45594 (2013.01 - EP US); H03F 2203/5036 (2013.01 - EP US)
Citation (search report)
See references of WO 2014029942A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014029942 A1 20140227; CA 2881524 A1 20140227; CA 2881524 C 20210629; CN 104937840 A 20150923; EP 2888815 A1 20150701; FR 2994776 A1 20140228; FR 2994776 B1 20161223; US 2015233961 A1 20150820; US 9702891 B2 20170711
DOCDB simple family (application)
FR 2013051944 W 20130814; CA 2881524 A 20130814; CN 201380055269 A 20130814; EP 13773285 A 20130814; FR 1257945 A 20120823; US 201314423402 A 20130814