JPS5636227A - Alternating current two-wire detection switch - Google Patents

Alternating current two-wire detection switch

Info

Publication number
JPS5636227A
JPS5636227A JP11219279A JP11219279A JPS5636227A JP S5636227 A JPS5636227 A JP S5636227A JP 11219279 A JP11219279 A JP 11219279A JP 11219279 A JP11219279 A JP 11219279A JP S5636227 A JPS5636227 A JP S5636227A
Authority
JP
Japan
Prior art keywords
voltage
zener
turned
constant
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.)
Pending
Application number
JP11219279A
Other languages
Japanese (ja)
Inventor
Kenji Ueda
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 JP11219279A priority Critical patent/JPS5636227A/en
Publication of JPS5636227A publication Critical patent/JPS5636227A/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

  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Thyristor Switches And Gates (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain a switch with a small residual voltage, by connecting a constant-voltage circuit in parallel to an SCR and by turning on and off this constant- voltage circuit to control the SCR. CONSTITUTION:When the output of detecting circuit 2 is ''H'', transistor 44 is turned on, and the constant-voltage circuit including transistor 41 operates, and the output is supplied to detecting circuit 2. At this time, since the Zener voltage of Zener diode 33 is higher than the Zener voltage of Zener diode 43, SCR32 is not turned on. When the output of detecting circuit 2 becomes ''L'', transistor 44 is turned off; and the rectified voltage exceeds the Zener voltage of Zener diode 33, SCR32 is turned on, and electric power is supplied to load 5. The residual voltage between terminals 11 and 12 can be reduced by adjusting the Zener voltage of Zener diodes 33 and 43.
JP11219279A 1979-08-31 1979-08-31 Alternating current two-wire detection switch Pending JPS5636227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11219279A JPS5636227A (en) 1979-08-31 1979-08-31 Alternating current two-wire detection switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11219279A JPS5636227A (en) 1979-08-31 1979-08-31 Alternating current two-wire detection switch

Publications (1)

Publication Number Publication Date
JPS5636227A true JPS5636227A (en) 1981-04-09

Family

ID=14580557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11219279A Pending JPS5636227A (en) 1979-08-31 1979-08-31 Alternating current two-wire detection switch

Country Status (1)

Country Link
JP (1) JPS5636227A (en)

Similar Documents

Publication Publication Date Title
JPS5636227A (en) Alternating current two-wire detection switch
JPS56159716A (en) Direct-current electric power device
JPS5799032A (en) Alternating current two-wire type contactless switch
JPS54105457A (en) Alternating current switching contactless switch of two-wire system
GB1485786A (en) Device for adjusting the power supplied to a load from a rectified alternating voltage source by suppressing half cycles
JPS5762630A (en) Control circuit device
SU593206A1 (en) Dc low-voltage source
JPS5731014A (en) Constant-voltage circuit
JPS6439266A (en) Switching regulator
JPS5647129A (en) Alternating-current two-wire photoelectric switch
JPS5535556A (en) Two-wire system alternating current switching contactless switch
JPS5799031A (en) Alternating current two-wire type contactless switch
JPS5699520A (en) Alternating current controlling circuit
JPS5790722A (en) Dc power supply circuit
JPS54129443A (en) Automatic power supply switching circuit
JPS5682920A (en) Electric equipment
JPS57188134A (en) Ac two-wire type contactless switch
JPS5523549A (en) Electric device
JPS54157241A (en) Interruption-free power source system
JPS57178423A (en) Alternating-current two-wire type contactless switch
JPS6488813A (en) Power supply circuit
JPS57101917A (en) Electric power supplying circuit
JPS57173225A (en) Alternating-current two-line contactless switch
JPS5725016A (en) Constant-voltage circuit
JPS55145436A (en) Alternating current two-wire type contactless switch