JPH0193835U - - Google Patents
Info
- Publication number
- JPH0193835U JPH0193835U JP18865287U JP18865287U JPH0193835U JP H0193835 U JPH0193835 U JP H0193835U JP 18865287 U JP18865287 U JP 18865287U JP 18865287 U JP18865287 U JP 18865287U JP H0193835 U JPH0193835 U JP H0193835U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- photocoupler
- circuit
- emitting element
- primary 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
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Electronic Switches (AREA)
Description
第１図はこの考案の一実施例であるホトカプラ
を用いた信号伝達回路を示す回路図、第２図は第
１図に示す電気回路の波形図、第３図は発光ダイ
オードのＶ―ｉ動作特性を示す特性図、第４図は
従来装置を示す回路図、第５図は第４図に示す電
気回路の波形図、第６図は他の従来装置を示す回
路図、第７図は第６図に示す電気回路の波形図で
ある。
１：一次側電気回路、２：二次側電気回路、５
：ホトカプラ、５ａ：発光ダイオード。
Figure 1 is a circuit diagram showing a signal transmission circuit using a photocoupler, which is an embodiment of this invention, Figure 2 is a waveform diagram of the electric circuit shown in Figure 1, and Figure 3 is the Vi operation of a light emitting diode. 4 is a circuit diagram showing the conventional device, FIG. 5 is a waveform diagram of the electric circuit shown in FIG. 4, FIG. 6 is a circuit diagram showing another conventional device, and FIG. 7 is a circuit diagram showing the conventional device. 7 is a waveform diagram of the electric circuit shown in FIG. 6. FIG. 1: Primary side electric circuit, 2: Secondary side electric circuit, 5
: Photocoupler, 5a: Light emitting diode.
Claims (1)
子とを組合わせたホトカプラを介して二次側回路
に伝達するものにおいて、１次側回路に接続され
るホトカプラの発光素子として負性抵抗特性を有
する発光ダイオードを用いたことを特徴とする信
号伝達回路。 In devices that transmit electrical signals from the primary circuit to the secondary circuit via a photocoupler that combines a light emitting element and a light receiving element, the light emitting element of the photocoupler connected to the primary circuit has negative resistance characteristics. A signal transmission circuit characterized by using a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18865287U JPH0193835U (en) | 1987-12-11 | 1987-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18865287U JPH0193835U (en) | 1987-12-11 | 1987-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0193835U true JPH0193835U (en) | 1989-06-20 |
Family
ID=31479730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18865287U Pending JPH0193835U (en) | 1987-12-11 | 1987-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0193835U (en) |
-
1987
- 1987-12-11 JP JP18865287U patent/JPH0193835U/ja active Pending
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