JPS621176U - - Google Patents
Info
- Publication number
- JPS621176U JPS621176U JP9248285U JP9248285U JPS621176U JP S621176 U JPS621176 U JP S621176U JP 9248285 U JP9248285 U JP 9248285U JP 9248285 U JP9248285 U JP 9248285U JP S621176 U JPS621176 U JP S621176U
- Authority
- JP
- Japan
- Prior art keywords
- generation circuit
- voltage generation
- meter
- voltage
- reference voltage
- 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
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
第１図は本考案の一実施例を示した電気回路図
、第２図は透過率と出力電圧との関係を示した特
性図である。
ＬＥＤ……発光ダイオード、ＰＤ１……フオト
ダイオード、３……基準電圧発生回路、４……電
圧発生回路。
FIG. 1 is an electric circuit diagram showing an embodiment of the present invention, and FIG. 2 is a characteristic diagram showing the relationship between transmittance and output voltage. LED...Light emitting diode, PD1...Photodiode, 3...Reference voltage generation circuit, 4...Voltage generation circuit.
Claims (1)
を備え、この電圧発生回路から発生しうる電圧の
所望範囲をフルスケールとして表示するメータに
おいて、 上記所望範囲の上限または下限の電圧を基準電
圧として発生する基準電圧発生回路と、この基準
電圧発生回路および上記電圧発生回路の出力間に
設けたメータと、上記電圧発生回路の出力電圧が
上記基準電圧を越えたときに上記メータに逆方向
の電流が流れるのを防止するダイオードを上記メ
ータに直列に設けたことを特徴とするメータの逆
振れ防止回路。[Claims for Utility Model Registration] In a meter that is equipped with a voltage generation circuit that generates a voltage according to input information and that displays a desired range of voltage that can be generated from this voltage generation circuit as a full scale, the upper limit of the desired range or A reference voltage generation circuit that generates a lower limit voltage as a reference voltage, a meter installed between the output of this reference voltage generation circuit and the voltage generation circuit, and a meter installed between the outputs of the voltage generation circuit and the voltage generation circuit, and A reverse swing prevention circuit for a meter, characterized in that a diode is provided in series with the meter to prevent current from flowing in the opposite direction to the meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9248285U JPS621176U (en) | 1985-06-19 | 1985-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9248285U JPS621176U (en) | 1985-06-19 | 1985-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS621176U true JPS621176U (en) | 1987-01-07 |
Family
ID=30649320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9248285U Pending JPS621176U (en) | 1985-06-19 | 1985-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS621176U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811576A (en) * | 1981-07-13 | 1983-01-22 | Eidai Co Ltd | Water-resistant adhesive |
-
1985
- 1985-06-19 JP JP9248285U patent/JPS621176U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811576A (en) * | 1981-07-13 | 1983-01-22 | Eidai Co Ltd | Water-resistant adhesive |
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