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JPS5562382A - Alternating current 3-wire type transmission type photoelectric switch - Google Patents

Alternating current 3-wire type transmission type photoelectric switch

Info

Publication number
JPS5562382A
JPS5562382A JP13553678A JP13553678A JPS5562382A JP S5562382 A JPS5562382 A JP S5562382A JP 13553678 A JP13553678 A JP 13553678A JP 13553678 A JP13553678 A JP 13553678A JP S5562382 A JPS5562382 A JP S5562382A
Authority
JP
Japan
Prior art keywords
power source
cycle
light
projector
capacitor
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
JP13553678A
Other languages
Japanese (ja)
Inventor
Yasuyuki Watanabe
Ichiro Higuchi
Kazuyuki Ogata
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP13553678A priority Critical patent/JPS5562382A/en
Publication of JPS5562382A publication Critical patent/JPS5562382A/en
Pending legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE: To realize a device to increase the peak value of the optical pulse by receiving only the plus or minus AC power source by the projector and through the half-wave rectifier and also providing the means to give the driving and light projection to the luminous element in the fixed timing of the next antiphase half-wave of the AC power source.
CONSTITUTION: Projector 1 consists of half-wave rectifier 105, the circuit connecting PUT29, coil 21 and light emitting diode 8 in series, resistances 101 and 102, capacitor 30 and diode 28 each. Capacitor 30 is connected across resistance 25, and light receiver 2 contains light reception element 9 and the like. Such AC 3-wire transmission type photoelectric switch drives once luminous element 8 of the projector every cycle of the AC power source to give the light emission, and also can set the discharging timing to the early time of the next half-cycle rise of the charging half-cycle via the instantaneous discharge current for the capacitor which is charged up to the driving current by using the half cycle of the AC power source. As a result, the duty factor of the driving current can be decreased, furthermore ensuring the stability to the induced noise due to the disturbance light and the like.
COPYRIGHT: (C)1980,JPO&Japio
JP13553678A 1978-11-02 1978-11-02 Alternating current 3-wire type transmission type photoelectric switch Pending JPS5562382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13553678A JPS5562382A (en) 1978-11-02 1978-11-02 Alternating current 3-wire type transmission type photoelectric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13553678A JPS5562382A (en) 1978-11-02 1978-11-02 Alternating current 3-wire type transmission type photoelectric switch

Publications (1)

Publication Number Publication Date
JPS5562382A true JPS5562382A (en) 1980-05-10

Family

ID=15154064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13553678A Pending JPS5562382A (en) 1978-11-02 1978-11-02 Alternating current 3-wire type transmission type photoelectric switch

Country Status (1)

Country Link
JP (1) JPS5562382A (en)

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