ES8104685A1 - Perfeccionamientos en detectores fotoelectricos de la pre- sencia de objetos - Google Patents

Perfeccionamientos en detectores fotoelectricos de la pre- sencia de objetos

Info

Publication number
ES8104685A1
ES8104685A1 ES491819A ES491819A ES8104685A1 ES 8104685 A1 ES8104685 A1 ES 8104685A1 ES 491819 A ES491819 A ES 491819A ES 491819 A ES491819 A ES 491819A ES 8104685 A1 ES8104685 A1 ES 8104685A1
Authority
ES
Spain
Prior art keywords
photo
electric detector
temperature
multivibrator
compensated circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES491819A
Other languages
English (en)
Other versions
ES491819A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Publication of ES491819A0 publication Critical patent/ES491819A0/es
Publication of ES8104685A1 publication Critical patent/ES8104685A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2826—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistors of the complementary type
    • H03K3/2828—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistors of the complementary type in an asymmetrical circuit configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

CIRCUITO DETECTOR DE PRESENCIA DE OBJETOS MEDIANTE DETECTORES FOTOELECTRICOS. UN MULTIVIBRADOR QUE TIENE COMO BASE DOS TRANSISTORES (T, T), ALIMENTA UN DIODO ELECTROLUMINISCENTE (D1) QUE ACTUA SOBRE UN FOTOTRANSISTOR (T1). SI EL HAZ SE CORTA, LA SEÑAL PASA POR UN TRANSISTOR (T2) QUE LA AMPLIFICA Y HACE QUE OTRO TRANSISTOR (T8) DEJE DE CONDUCIR, ELEVANDOSE LA TENSION DE PUERTA DE UN TIRISTOR (TH1) QUE ENTRA EN CONDUCCION, SEÑALIZANDO LA PRESENCIA DEL OBJETO MEDIANTE UN DIODO ELECTROLUMINISCENTE (D4). UN CONDENSADOR (C9) COMIENZA ENTONCES A CARGARSE HASTA QUE HACE CONDUCIR UN ZENER (D7) Y, POR TANTO, UN SEGUNTO TIRISTOR (TH2) QUE PODRA ALIMENTAR UN RELE.
ES491819A 1979-05-25 1980-05-23 Perfeccionamientos en detectores fotoelectricos de la pre- sencia de objetos Expired ES8104685A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7913316A FR2457604A1 (fr) 1979-05-25 1979-05-25 Detecteur photo-electrique de la presence d'un objet, du type a deux fils

Publications (2)

Publication Number Publication Date
ES491819A0 ES491819A0 (es) 1981-04-01
ES8104685A1 true ES8104685A1 (es) 1981-04-01

Family

ID=9225858

Family Applications (1)

Application Number Title Priority Date Filing Date
ES491819A Expired ES8104685A1 (es) 1979-05-25 1980-05-23 Perfeccionamientos en detectores fotoelectricos de la pre- sencia de objetos

Country Status (10)

Country Link
US (1) US4328419A (es)
JP (1) JPS55159172A (es)
BE (1) BE883409A (es)
CH (1) CH635688A5 (es)
DE (1) DE3019071A1 (es)
ES (1) ES8104685A1 (es)
FR (1) FR2457604A1 (es)
GB (1) GB2052737B (es)
IT (1) IT1130737B (es)
NL (1) NL8003031A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497423A1 (fr) * 1980-12-31 1982-07-02 Telemecanique Electrique Appareil detecteur du type a deux bornes, comportant un circuit d'alimentation en courant alternatif redresse et de commande d'une charge a l'aide de thyristors de commutation
DE3230903C2 (de) * 1982-08-19 1985-07-18 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Schaltende Lichtschranke
DE3411995A1 (de) * 1984-03-31 1985-10-03 Kulzer & Co Gmbh, 6380 Bad Homburg Lichtschranke als schalter in einer aufnahmevorrichtung fuer ein handgeraet
JPS6138520A (ja) * 1984-07-31 1986-02-24 Ricoh Co Ltd 光センサ安定化方式
JPS6290967A (ja) * 1985-10-17 1987-04-25 Nissan Motor Co Ltd 受光用半導体集積回路
DE3803034C3 (de) * 1988-02-02 1994-10-20 Sick Optik Elektronik Erwin Photoempfänger
US5541623A (en) * 1993-06-02 1996-07-30 Alps Electric (U.S.A.) Inc. Temperature compensated opto-electronic circuit and mouse using same
GB9514618D0 (en) * 1995-07-17 1996-06-19 British Aerospace Nuclear event detector
US6774578B2 (en) * 2000-09-19 2004-08-10 Semiconductor Energy Laboratory Co., Ltd. Self light emitting device and method of driving thereof
US7316628B2 (en) * 2004-01-13 2008-01-08 The Gates Corporation Ip Law Dept. Two speed transmission and belt drive system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348167A (en) * 1966-04-20 1967-10-17 Avco Corp Relaxation oscillator requiring low current
FR2123753A5 (es) * 1971-01-29 1972-09-15 Cometa Sa
DE2340978A1 (de) * 1973-08-14 1975-02-27 Licentia Gmbh Sender fuer wechsellichtschranke
JPS5161243A (en) * 1974-11-25 1976-05-27 Fuji Photo Optical Co Ltd Taisuzofukuki
DE2517597A1 (de) * 1975-04-21 1976-11-04 Stiebel Eltron Gmbh & Co Kg Schaltungsanordnung zur beruehrungslosen an- und abschaltung, insbesondere von haendetrocknern
FR2373037A1 (fr) * 1976-12-03 1978-06-30 Telemecanique Electrique Detecteur de proximite a deux fils
DE2710631A1 (de) * 1977-03-11 1978-09-14 Weber Guenther Reflexlichtschranke
US4153835A (en) * 1977-08-25 1979-05-08 Bell Telephone Laboratories, Incorporated Temperature compensation circuit

Also Published As

Publication number Publication date
CH635688A5 (fr) 1983-04-15
BE883409A (fr) 1980-09-15
FR2457604A1 (fr) 1980-12-19
IT1130737B (it) 1986-06-18
US4328419A (en) 1982-05-04
DE3019071A1 (de) 1980-12-04
ES491819A0 (es) 1981-04-01
JPS55159172A (en) 1980-12-11
GB2052737A (en) 1981-01-28
FR2457604B1 (es) 1981-07-17
JPH0143279B2 (es) 1989-09-19
DE3019071C2 (es) 1989-02-02
GB2052737B (en) 1983-12-07
IT8022288A0 (it) 1980-05-23
NL8003031A (nl) 1980-11-27

Similar Documents

Publication Publication Date Title
ES8104685A1 (es) Perfeccionamientos en detectores fotoelectricos de la pre- sencia de objetos
GB1451285A (en) Temperature sensitive control circuit
IT1088768B (it) Ricevitore facsimile a diodi emettitori di luce
SE8201696L (sv) Fotoelektrisk rokdetektor
GB1408930A (en) Opto-electronic semiconductor devices
GB1490221A (en) Electronic monitoring apparatus which preferably works without being touched
SE8206312L (sv) Kretsanordning for omvandling av en informationssignal till en fyrkantvag
GB1463108A (en) Alternating signal rectifying device
ATE47263T1 (de) Traegererfassungsschaltung.
DE3374627D1 (de) Semiconductor rectifier diode
ES460207A1 (es) Circuito referencia de tension insensible a la temperatura.
US2363361A (en) Control track stabilizing method and system
GB1356217A (en) Electronic latch circuit
GB1177655A (en) Improvements relating to Photosensitive Recieving Devices.
JPS5583477A (en) Controlling circuit of transistor oscillating inverter
JPS52133761A (en) Integrated circuit
JPS5275282A (en) Protecting circuit for bipolar ic
JPS5441650A (en) Level comparison circuit
JPS5714243A (en) Detecting circuit for ringing signal
SU758536A1 (ru) Искробезопасное устройство аварийной сигнализации
JPS55143461A (en) Signal level display circuit
SU552630A1 (ru) Устройство дл охранно-пожарной сигнализации
ES464128A1 (es) Perfeccionamientos en circuitos provistos de fototransisto- res.
ES368297A1 (es) Fuente de baja tension estabilizada.
JPS53106588A (en) Semiconductor radiation detector

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960603