JPS59127341U - AC 2-wire proximity switch - Google Patents
AC 2-wire proximity switchInfo
- Publication number
- JPS59127341U JPS59127341U JP2040583U JP2040583U JPS59127341U JP S59127341 U JPS59127341 U JP S59127341U JP 2040583 U JP2040583 U JP 2040583U JP 2040583 U JP2040583 U JP 2040583U JP S59127341 U JPS59127341 U JP S59127341U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- circuit
- detection circuit
- proximity switch
- detection signal
- 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
Links
Landscapes
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は、この考案の実施例に係る交流２線式近接スイッチ
の構成回路図である。
Ｓ・・・・・・検出回路、Ｑ、、 Ｑ２． Ｑ、、 Ｑ
、・・・・・・トランジスタ、Ｒ１・・・・・・抵抗、
Ｑ６ｍ６ｍｍａ＠サイリスタ、ＢＲ・・・・・・ブリッ
ジ整流器、Ｌ・・・・・・負荷、Ａ・・・・・・交流電
源。The figure is a configuration circuit diagram of an AC two-wire proximity switch according to an embodiment of this invention. S...Detection circuit, Q, Q2. Q,, Q
,...Transistor, R1...Resistor,
Q6m6mm@thyristor, BR...Bridge rectifier, L...Load, A...AC power supply.
Claims (1)
出する検出回路と、前記検出信号を受けて作動しブリッ
ジ整流器を介して交流負荷を駆動するサイリスタを備え
たスイッチング回路からなり、前記スイッチング回路か
ら前記検出回路へ導出する電源ラインに第３のトランジ
スタを介挿接続して定電流回路を形成するとともに、前
記検出回路を構成しかつ前記第１トランジスタと相反出
力となる第２トラン−ジスタにより駆動され得る第一４
トランジスタと抵抗との並列回路を前記第３トランジス
タに直列に介挿接続し、前記検出信号の有無の状態によ
り前記第４トランジスタを制御し前記検出回路への電源
供給を制御してなることを特徴とする交流２線式近接ス
イッチ。The switching circuit includes a detection circuit that detects the proximity object method and sends a detection signal from a first transistor, and a thyristor that operates in response to the detection signal and drives an AC load via a bridge rectifier. A third transistor is interposed and connected to a power supply line leading from to the detection circuit to form a constant current circuit, and a second transistor forming the detection circuit and having a reciprocal output with the first transistor. The first four that can be driven
A parallel circuit of a transistor and a resistor is inserted and connected in series to the third transistor, and the fourth transistor is controlled depending on the presence or absence of the detection signal to control the power supply to the detection circuit. AC 2-wire proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2040583U JPS59127341U (en) | 1983-02-14 | 1983-02-14 | AC 2-wire proximity switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2040583U JPS59127341U (en) | 1983-02-14 | 1983-02-14 | AC 2-wire proximity switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59127341U true JPS59127341U (en) | 1984-08-27 |
Family
ID=30151533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2040583U Pending JPS59127341U (en) | 1983-02-14 | 1983-02-14 | AC 2-wire proximity switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59127341U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131229A (en) * | 1980-03-18 | 1981-10-14 | Omron Tateisi Electronics Co | Two-wire contactless switch |
| JPS5784621A (en) * | 1980-11-17 | 1982-05-27 | Omron Tateisi Electronics Co | Alternating current two wire type proximity switch |
-
1983
- 1983-02-14 JP JP2040583U patent/JPS59127341U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131229A (en) * | 1980-03-18 | 1981-10-14 | Omron Tateisi Electronics Co | Two-wire contactless switch |
| JPS5784621A (en) * | 1980-11-17 | 1982-05-27 | Omron Tateisi Electronics Co | Alternating current two wire type proximity switch |
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