JPS63158031U - - Google Patents
Info
- Publication number
- JPS63158031U JPS63158031U JP4909587U JP4909587U JPS63158031U JP S63158031 U JPS63158031 U JP S63158031U JP 4909587 U JP4909587 U JP 4909587U JP 4909587 U JP4909587 U JP 4909587U JP S63158031 U JPS63158031 U JP S63158031U
- Authority
- JP
- Japan
- Prior art keywords
- phototransistor
- contact
- collector
- emitter
- light
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案のフオトカツプラの一例を示す
等価回路図。第２図は本考案のフオトカツプラの
使用例を示す回路図。第３図は従来のフオトカツ
プラの等価回路図。第４図、第５図は従来のフオ
トカツプラを負論理で使う場合の等価回路図であ
り、第４図は入力信号を負論理にしたもので、第
５図は出力信号を負論理にしたものの一例の回路
図である。
１……従来のフオトカツプラ、２……発光ダイ
オード、３……フオトトランジスタ、４……光、
５，６……入力端子、７，８……出力端子、９…
…ＩＣ、１０……プルアツプ抵抗、１１……Ｂ接
点リレー、１２……リレーコイル、１３，１４…
…リレー出力端子、１５……本発明のフオトカツ
プラ、１６，１７……バイアス抵抗、１８……出
力トランジスタ、１９，２０……出力端子、２１
……ＩＣ、２２，２３……プルアツプ抵抗、２４
，２５……出力端子。
FIG. 1 is an equivalent circuit diagram showing an example of the photo coupler of the present invention. FIG. 2 is a circuit diagram showing an example of the use of the photo coupler of the present invention. Figure 3 is an equivalent circuit diagram of a conventional photo coupler. Figures 4 and 5 are equivalent circuit diagrams when using a conventional photo coupler with negative logic. Figure 4 shows the input signal with negative logic, and Figure 5 shows the output signal with negative logic. FIG. 2 is an example circuit diagram. 1... Conventional photo coupler, 2... Light emitting diode, 3... Photo transistor, 4... Light,
5, 6...Input terminal, 7, 8...Output terminal, 9...
...IC, 10...Pull-up resistor, 11...B contact relay, 12...Relay coil, 13, 14...
... Relay output terminal, 15 ... Photo coupler of the present invention, 16, 17 ... Bias resistor, 18 ... Output transistor, 19, 20 ... Output terminal, 21
...IC, 22, 23...Pull-up resistor, 24
, 25... Output terminal.
Claims (1)
るフオトトランジスタと該フオトトランジスタの
コレクタ、エミツタ間に接続される第１のバイア
ス抵抗と、該フオトトランジスタのコレクタ接点
にトランジスタのベース接点を接続し、該トラン
ジスタのエミツタ接点を前記フオトトランジスタ
のエミツタ接点に接続し、該トランジスタのベー
ス、コレクタ間に接続される第２のバイアス抵抗
を具備したことを特徴とするフオトカツプラ。 a first bias resistor connected between a light-emitting diode, a phototransistor facing the light-emitting diode, and the collector and emitter of the phototransistor; a base contact of the transistor is connected to the collector contact of the phototransistor; A photocoupler characterized in that the emitter contact is connected to the emitter contact of the phototransistor, and a second bias resistor is connected between the base and collector of the phototransistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4909587U JPS63158031U (en) | 1987-04-01 | 1987-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4909587U JPS63158031U (en) | 1987-04-01 | 1987-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63158031U true JPS63158031U (en) | 1988-10-17 |
Family
ID=30871231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4909587U Pending JPS63158031U (en) | 1987-04-01 | 1987-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63158031U (en) |
-
1987
- 1987-04-01 JP JP4909587U patent/JPS63158031U/ja active Pending
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