JPH01129671U - - Google Patents
Info
- Publication number
- JPH01129671U JPH01129671U JP2095688U JP2095688U JPH01129671U JP H01129671 U JPH01129671 U JP H01129671U JP 2095688 U JP2095688 U JP 2095688U JP 2095688 U JP2095688 U JP 2095688U JP H01129671 U JPH01129671 U JP H01129671U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- transistor
- electrode
- resistor
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の原理ブロツク図、第２図は本
考案の一実施例を示す図、第３図は第２図回路を
アラーム信号送受信回路部に用いた例を示す図、
第４図は従来の電源断検出回路図である。
第１図乃至第３図において、１は信号送信回路
部（アラーム信号送信回路部１１）、２は信号受
信回路部（アラーム信号受信回路部２１）、６は
導電線（多芯ケーブルの１本の芯線６１）、１０
は第１の直流電源、１４は半導体電源オン／オフ
応答回路（電流スイツチ回路１４１）、１６はト
ランジスタ（ＮＰＮ形トランジスタ１６１）、２
０は抵抗、２０１は終端抵抗、２２は第２の直流
電源である。
FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a diagram showing an embodiment of the present invention, and FIG. 3 is a diagram showing an example in which the circuit shown in FIG. 2 is used in an alarm signal transmitting/receiving circuit section.
FIG. 4 is a diagram of a conventional power failure detection circuit. 1 to 3, 1 is a signal transmitting circuit section (alarm signal transmitting circuit section 1 1 ), 2 is a signal receiving circuit section (alarm signal receiving circuit section 2 1 ), and 6 is a conductive wire (multi-core cable). One core wire 6 1 ), 10
14 is a semiconductor power supply on/off response circuit (current switch circuit 14 1 ), 16 is a transistor (NPN transistor 16 1 ), 2 is a first DC power supply;
0 is a resistor, 201 is a terminating resistor, and 22 is a second DC power supply.
Claims (1)
に設けられ、第１及び第２の電極並びに制御電極
を有するものにしてその第１の電極をアース電位
に接続したトランジスタ１６と、 前記トランジスタ１６の制御電極に出力が結合
され、前記第１の直流電源１０のオン／オフに応
じた前記トランジスタ１６の導通度制御を生ぜし
める半導体電源オン／オフ応答回路１４と、 第２の直流電源２２を有する信号受信回路２に
設けられ、前記第２の直流電源２２に一端を接続
した抵抗２０と、 前記トランジスタ１６の第２の電極と前記抵抗
２０の他端とを接続した導電線６とを設けて成る
電源断検出回路。[Claims for Utility Model Registration] Signal transmission circuit unit 1 having first DC power supply 10
a transistor 16 provided in the transistor 16 and having first and second electrodes and a control electrode, the first electrode of which is connected to ground potential; A semiconductor power supply on/off response circuit 14 that controls the conductivity of the transistor 16 in accordance with the on/off of the DC power supply 10, and a signal receiving circuit 2 having a second DC power supply 22, and the second A power failure detection circuit comprising: a resistor 20 having one end connected to a DC power source 22; and a conductive wire 6 connecting the second electrode of the transistor 16 and the other end of the resistor 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2095688U JPH0548136Y2 (en) | 1988-02-19 | 1988-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2095688U JPH0548136Y2 (en) | 1988-02-19 | 1988-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01129671U true JPH01129671U (en) | 1989-09-04 |
| JPH0548136Y2 JPH0548136Y2 (en) | 1993-12-20 |
Family
ID=31237763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2095688U Expired - Lifetime JPH0548136Y2 (en) | 1988-02-19 | 1988-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0548136Y2 (en) |
-
1988
- 1988-02-19 JP JP2095688U patent/JPH0548136Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0548136Y2 (en) | 1993-12-20 |
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