JPH0397236U - - Google Patents
Info
- Publication number
- JPH0397236U JPH0397236U JP604790U JP604790U JPH0397236U JP H0397236 U JPH0397236 U JP H0397236U JP 604790 U JP604790 U JP 604790U JP 604790 U JP604790 U JP 604790U JP H0397236 U JPH0397236 U JP H0397236U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- photocoupler
- signal transmission
- circuit
- collector
- 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
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第1図は本考案にかかるフオトカプラーを用い
た信号伝達回路の実施例を示す回路図、第2図は
同上実施例の動作を示すタイミングチヤート、第
3図は従来のフオトカプラーを用いた信号伝達回
路の例を示す回路図、第4図は同上従来例の動作
を示すタイミングチヤート、第5図はフオトカプ
ラーを用いた信号伝達回路の信号出力部における
フオトトランジスタの負荷抵抗とスイツチング時
間との関係を示す線図である。
U1……フオトカプラー、Q1……トランジス
タ、D……一方向性インピーダンス回路を構成す
るダイオード、R3……インピーダンス回路を構
成する抵抗。
Fig. 1 is a circuit diagram showing an embodiment of a signal transmission circuit using a photocoupler according to the present invention, Fig. 2 is a timing chart showing the operation of the same embodiment, and Fig. 3 is a signal transmission circuit using a conventional photocoupler. A circuit diagram showing an example of a transmission circuit, FIG. 4 is a timing chart showing the operation of the conventional example, and FIG. It is a line diagram showing a relationship. U1 ...Photocoupler, Q1 ...Transistor, D...Diode forming a unidirectional impedance circuit, R3 ...Resistor forming an impedance circuit.
Claims (1)
力部とを有する信号伝達回路において、 上記フオトカプラーとトランジスタは、フオト
カプラーの出力電流が上記トランジスタのコレク
タに接続された一方向性インピーダンス回路と上
記トランジスタのベースに接続されたインピーダ
ンス回路とに分流されるように接続され、 上記トランジスタのコレクタから出力を取り出
すことを特徴とするフオトカプラーを用いた信号
伝達回路。[Claims for Utility Model Registration] In a signal transmission circuit having a photocoupler and a signal output section including a transistor, the photocoupler and the transistor are unidirectional, with the output current of the photocoupler being connected to the collector of the transistor. 1. A signal transmission circuit using a photocoupler, which is connected to an impedance circuit so as to be divided into an impedance circuit connected to the base of the transistor, and outputs an output from the collector of the transistor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP604790U JPH0397236U (en) | 1990-01-25 | 1990-01-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP604790U JPH0397236U (en) | 1990-01-25 | 1990-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0397236U true JPH0397236U (en) | 1991-10-07 |
Family
ID=31509730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP604790U Pending JPH0397236U (en) | 1990-01-25 | 1990-01-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0397236U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5543298A (en) * | 1978-09-25 | 1980-03-27 | Mecanique Soc Ind De | Centrifugal pump |
-
1990
- 1990-01-25 JP JP604790U patent/JPH0397236U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5543298A (en) * | 1978-09-25 | 1980-03-27 | Mecanique Soc Ind De | Centrifugal pump |