JPH0225878U - - Google Patents
Info
- Publication number
- JPH0225878U JPH0225878U JP10399788U JP10399788U JPH0225878U JP H0225878 U JPH0225878 U JP H0225878U JP 10399788 U JP10399788 U JP 10399788U JP 10399788 U JP10399788 U JP 10399788U JP H0225878 U JPH0225878 U JP H0225878U
- Authority
- JP
- Japan
- Prior art keywords
- vce
- photocoupler
- integrator
- output voltage
- level
- 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
- 230000006866 deterioration Effects 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図乃至第４図は実施例の動作説明のための波形
図、第５図はホトカプラの絶縁方法を説明するた
めの回路図、第６図はホトカプラを使用した回路
を一般化した回路図である。
１……ホトカプラ、４，５……比較器、６……
積分器。
FIG. 1 is a circuit diagram showing an embodiment of this invention, FIGS. 2 to 4 are waveform diagrams for explaining the operation of the embodiment, and FIG. 5 is a circuit diagram for explaining a photocoupler insulation method. FIG. 6 is a generalized circuit diagram using a photocoupler. 1...Photocoupler, 4, 5...Comparator, 6...
Integrator.
Claims (1)
使用され、経年的に特性が変化する信号伝送部品
の出力電圧ＶＣＥを、夫々電圧を異にする第１、
第２の基準電圧Ｖ１，Ｖ２と比較する第１、第２
の比較器と、この第１、第２比較器よりの出力を
積分する積分器とよりなり、前記出力電圧ＶＣＥ
と前記第１、第２の基準電圧Ｖ１，Ｖ２との関係
がＶＣＥ＜Ｖ１＜Ｖ２のときとＶ１＜ＶＣＥ＜Ｖ
２のときとで前記積分器が夫々“Ｌ”レベルと“
Ｈ”レベルの出力をするようにしたことを特徴と
するホトカプラなどの劣化判定回路。 The output voltage VCE of a signal transmission component that is used so as to be fully saturated when turned on, such as a photocoupler, and whose characteristics change over time.
The first and second voltages are compared with the second reference voltages V 1 and V 2 .
and an integrator that integrates the outputs from the first and second comparators, and the output voltage VCE
and the first and second reference voltages V 1 and V 2 when VCE<V 1 <V 2 and when V 1 <VCE<V
2 , the integrator is at "L" level and "
A deterioration judgment circuit for a photocoupler, etc., characterized by outputting an H" level output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10399788U JPH0225878U (en) | 1988-08-05 | 1988-08-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10399788U JPH0225878U (en) | 1988-08-05 | 1988-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0225878U true JPH0225878U (en) | 1990-02-20 |
Family
ID=31335325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10399788U Pending JPH0225878U (en) | 1988-08-05 | 1988-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0585954U (en) * | 1992-04-23 | 1993-11-19 | 三菱重工業株式会社 | Parking device hatchback vehicle protection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150343B2 (en) * | 1982-08-31 | 1986-11-04 | Tokyo Shibaura Electric Co |
-
1988
- 1988-08-05 JP JP10399788U patent/JPH0225878U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150343B2 (en) * | 1982-08-31 | 1986-11-04 | Tokyo Shibaura Electric Co |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0585954U (en) * | 1992-04-23 | 1993-11-19 | 三菱重工業株式会社 | Parking device hatchback vehicle protection device |
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