JPS59119053U - Photocoupler input circuit - Google Patents
Photocoupler input circuitInfo
- Publication number
- JPS59119053U JPS59119053U JP1290183U JP1290183U JPS59119053U JP S59119053 U JPS59119053 U JP S59119053U JP 1290183 U JP1290183 U JP 1290183U JP 1290183 U JP1290183 U JP 1290183U JP S59119053 U JPS59119053 U JP S59119053U
- Authority
- JP
- Japan
- Prior art keywords
- input circuit
- photocoupler
- photocoupler input
- input
- led
- 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
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
第１図は、従来のホトカプラ入力回路、第２図は、本考
案のホトカプラ入力回路、第３図は、従来、本考案のホ
トカプラ入力回路の入出力特性、第４図は、交流入力の
ホトカプラ入力回路。
１−入力端子、２−ホトカプラ内ＬＥＤ、 ３−ツェナ
ーダイオード、４−入力端抵抗、５−ホトカプラ内ホト
トランジスター、６−出力側負荷抵抗、７−出力端子、
８−出力側電源。Figure 1 shows a conventional photocoupler input circuit, Figure 2 shows the photocoupler input circuit of the present invention, Figure 3 shows the input/output characteristics of the conventional photocoupler input circuit of the present invention, and Figure 4 shows an AC input photocoupler input circuit. input circuit. 1 - Input terminal, 2 - LED in photocoupler, 3 - Zener diode, 4 - Input end resistance, 5 - Phototransistor in photocoupler, 6 - Output side load resistance, 7 - Output terminal,
8 - Output side power supply.
Claims (1)
抵抗と、ホトカプラ内のＬＥＤの間に、電圧に合ったツ
ェナーダイオードを、そう人したホトカプラ入力回路。A photocoupler input circuit that uses a Zener diode that matches the voltage between the input side resistor and the LED in the photocoupler in a digital input circuit using a photocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290183U JPS59119053U (en) | 1983-01-31 | 1983-01-31 | Photocoupler input circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290183U JPS59119053U (en) | 1983-01-31 | 1983-01-31 | Photocoupler input circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59119053U true JPS59119053U (en) | 1984-08-11 |
Family
ID=30144294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1290183U Pending JPS59119053U (en) | 1983-01-31 | 1983-01-31 | Photocoupler input circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59119053U (en) |
-
1983
- 1983-01-31 JP JP1290183U patent/JPS59119053U/en active Pending
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