JPS5535556A - Two-wire system alternating current switching contactless switch - Google Patents

Two-wire system alternating current switching contactless switch

Info

Publication number
JPS5535556A
JPS5535556A JP10894678A JP10894678A JPS5535556A JP S5535556 A JPS5535556 A JP S5535556A JP 10894678 A JP10894678 A JP 10894678A JP 10894678 A JP10894678 A JP 10894678A JP S5535556 A JPS5535556 A JP S5535556A
Authority
JP
Japan
Prior art keywords
scr
voltage
turned
alternating current
current
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
JP10894678A
Other languages
Japanese (ja)
Inventor
Hisatoshi Nodera
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 JP10894678A priority Critical patent/JPS5535556A/en
Publication of JPS5535556A publication Critical patent/JPS5535556A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce loss and a residual voltage by supplying power to a sensor circuit by a voltage generated at both ends of a constant-voltage element when two thyristors are turned on.
CONSTITUTION: When output transistor 301 of sensor circuit 3 is turned on to flow a current to the gate of SCR 411 through resistance 421 and this SCR 411 is turned on, a voltage of a full-wave-rectified waveform is applied to both ends of Zener diode 413. Then, when this voltage becomes larger than the Zener voltage, diode 413 is turned on to flow a current, and this current is flowed to the gate of SCR 412, and SCR 412 is turned on. The residual voltage at this time is only residual voltages in one SCR and full-wave rectifier circuit 401 because SCR 411 and SCR 412 are not connected is series. As a result, loss and the residual voltage can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP10894678A 1978-09-05 1978-09-05 Two-wire system alternating current switching contactless switch Pending JPS5535556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10894678A JPS5535556A (en) 1978-09-05 1978-09-05 Two-wire system alternating current switching contactless switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10894678A JPS5535556A (en) 1978-09-05 1978-09-05 Two-wire system alternating current switching contactless switch

Publications (1)

Publication Number Publication Date
JPS5535556A true JPS5535556A (en) 1980-03-12

Family

ID=14497646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10894678A Pending JPS5535556A (en) 1978-09-05 1978-09-05 Two-wire system alternating current switching contactless switch

Country Status (1)

Country Link
JP (1) JPS5535556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976398A (en) * 1982-10-22 1984-05-01 日本電信電話株式会社 Tunnel drilling method and machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976398A (en) * 1982-10-22 1984-05-01 日本電信電話株式会社 Tunnel drilling method and machine

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