JPH03123214U - - Google Patents
Info
- Publication number
- JPH03123214U JPH03123214U JP3241990U JP3241990U JPH03123214U JP H03123214 U JPH03123214 U JP H03123214U JP 3241990 U JP3241990 U JP 3241990U JP 3241990 U JP3241990 U JP 3241990U JP H03123214 U JPH03123214 U JP H03123214U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- measuring instrument
- output
- open collector
- 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
Links
- 230000002265 prevention Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Description
第１図はこの考案による外部出力回路の一実施
例を示した回路図、第２図は同外部出力回路に電
流流し込み型の外部機器を接続した状態を示した
回路図、第３図は従来例を説明するための回路図
である。
図中、１……増幅器、２……トランジスタ、３
……フオトカプラ、５……プルアツプ抵抗、６…
…逆流防止用ダイオードである。
Fig. 1 is a circuit diagram showing an embodiment of the external output circuit according to this invention, Fig. 2 is a circuit diagram showing a state in which a current-flow type external device is connected to the external output circuit, and Fig. 3 is a conventional circuit diagram. FIG. 2 is a circuit diagram for explaining an example. In the figure, 1...Amplifier, 2...Transistor, 3
...Photocoupler, 5...Pull-up resistor, 6...
...This is a backflow prevention diode.
Claims (1)
グ素子を有し、測定器本体側から同スイツチング
素子を介してトリガ出力などの信号を外部機器側
に出力する測定器の外部出力回路において、 上記スイツチング素子のオープンコレクタ出力
端子にプルアツプ抵抗と逆流防止用ダイオードの
直列回路を介して駆動用電源を接続してなること
を特徴とする測定器の外部出力回路。[Claims for Utility Model Registration] External output of a measuring instrument that has an open collector type switching element in the output stage and outputs a signal such as a trigger output from the measuring instrument main body to an external device via the switching element. An external output circuit for a measuring instrument, characterized in that the circuit comprises a driving power source connected to the open collector output terminal of the switching element via a series circuit of a pull-up resistor and a backflow prevention diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3241990U JPH03123214U (en) | 1990-03-28 | 1990-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3241990U JPH03123214U (en) | 1990-03-28 | 1990-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03123214U true JPH03123214U (en) | 1991-12-16 |
Family
ID=31535397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3241990U Pending JPH03123214U (en) | 1990-03-28 | 1990-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03123214U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290028A (en) * | 1985-10-15 | 1987-04-24 | Nec Corp | Logic circuit |
| JPS63189879A (en) * | 1987-02-02 | 1988-08-05 | Canon Inc | Fixing heater driving circuit |
| JPH02242313A (en) * | 1989-03-15 | 1990-09-26 | Fujitsu Ltd | Interface circuit |
-
1990
- 1990-03-28 JP JP3241990U patent/JPH03123214U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290028A (en) * | 1985-10-15 | 1987-04-24 | Nec Corp | Logic circuit |
| JPS63189879A (en) * | 1987-02-02 | 1988-08-05 | Canon Inc | Fixing heater driving circuit |
| JPH02242313A (en) * | 1989-03-15 | 1990-09-26 | Fujitsu Ltd | Interface circuit |