JPS5647129A - Alternating-current two-wire photoelectric switch - Google Patents

Alternating-current two-wire photoelectric switch

Info

Publication number
JPS5647129A
JPS5647129A JP12435479A JP12435479A JPS5647129A JP S5647129 A JPS5647129 A JP S5647129A JP 12435479 A JP12435479 A JP 12435479A JP 12435479 A JP12435479 A JP 12435479A JP S5647129 A JPS5647129 A JP S5647129A
Authority
JP
Japan
Prior art keywords
scr2
scr1
current
waveform
anode
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.)
Pending
Application number
JP12435479A
Other languages
Japanese (ja)
Inventor
Tadashi Furuta
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.)
SANKUSU KK
Panasonic Industrial Devices SUNX Co Ltd
Original Assignee
SANKUSU KK
Sunx Ltd
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 SANKUSU KK, Sunx Ltd filed Critical SANKUSU KK
Priority to JP12435479A priority Critical patent/JPS5647129A/en
Publication of JPS5647129A publication Critical patent/JPS5647129A/en
Pending 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
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To make it stable and secure to turn on-off large current by supplying a photodetecting circuit with stable DC electric power. CONSTITUTION:Pulse-modulated light is inputted to photodetection part 1 to control transistor TR. Load-switching SCR3 is connected in parallel to bridge type full- wave rectifying circuit 2 to apply and add the plus waveform of pulsating current after full-wave rectification. Constant voltage SCR2 is also applied with the plus waveform of pulsating current and, as the waveform rises, conducts to charge capacitor C1. To control SCR1, voltage detecting Zener diode ZD1 is connected. Through capacitor C3 connected between SCR1 and SCR2, charging current flows when the anode of SCR1 is held at a potential of 0, and it functions to hold the anode of SCR2 at a potential of 0.
JP12435479A 1979-09-27 1979-09-27 Alternating-current two-wire photoelectric switch Pending JPS5647129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12435479A JPS5647129A (en) 1979-09-27 1979-09-27 Alternating-current two-wire photoelectric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12435479A JPS5647129A (en) 1979-09-27 1979-09-27 Alternating-current two-wire photoelectric switch

Publications (1)

Publication Number Publication Date
JPS5647129A true JPS5647129A (en) 1981-04-28

Family

ID=14883304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12435479A Pending JPS5647129A (en) 1979-09-27 1979-09-27 Alternating-current two-wire photoelectric switch

Country Status (1)

Country Link
JP (1) JPS5647129A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101543A2 (en) * 1982-08-19 1984-02-29 Erwin Sick GmbH Optik-Elektronik Switching light barrier
US5025134A (en) * 1988-05-24 1991-06-18 David Bensoussan Means for refreshing a triac control circuit power supply
FR2882617A1 (en) * 2005-02-28 2006-09-01 Jacques Auguste Henri Brodier Audio signal mixing, modulating and distributing table for e.g. recording studio, has unit assigning initial values to signal modulated by modules that configure circuit to allow modulating signal to adjust variable of sensor illumination

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101543A2 (en) * 1982-08-19 1984-02-29 Erwin Sick GmbH Optik-Elektronik Switching light barrier
DE3230903A1 (en) * 1982-08-19 1984-03-01 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch SWITCHING LIGHT BARRIER
EP0101543B1 (en) * 1982-08-19 1987-11-04 Erwin Sick GmbH Optik-Elektronik Switching light barrier
US5025134A (en) * 1988-05-24 1991-06-18 David Bensoussan Means for refreshing a triac control circuit power supply
FR2882617A1 (en) * 2005-02-28 2006-09-01 Jacques Auguste Henri Brodier Audio signal mixing, modulating and distributing table for e.g. recording studio, has unit assigning initial values to signal modulated by modules that configure circuit to allow modulating signal to adjust variable of sensor illumination

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