JPS6455464U - - Google Patents
Info
- Publication number
- JPS6455464U JPS6455464U JP15134387U JP15134387U JPS6455464U JP S6455464 U JPS6455464 U JP S6455464U JP 15134387 U JP15134387 U JP 15134387U JP 15134387 U JP15134387 U JP 15134387U JP S6455464 U JPS6455464 U JP S6455464U
- Authority
- JP
- Japan
- Prior art keywords
- light
- voltage
- level
- power supply
- emitting means
- 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
- 238000012806 monitoring device Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図はこの考案の他の実施例を示す回路図、第３
図は従来の電源電圧監視装置の要部を示す図、第
４図は第３図に示す電源電圧監視装置の動作説明
図である。
図において、４ａ，８ａ，１２ａは発光ダイオ
ード、４ｂ，８ｂ，１２ｂはホトトランジスタ、
１３は論理演算手段、１４は抵抗である。なお、
図中、同一符号は同一または相当部分を示す。
Figure 1 is a circuit diagram showing one embodiment of this invention, Figure 2 is a circuit diagram showing another embodiment of this invention, and Figure 3 is a circuit diagram showing another embodiment of this invention.
This figure shows the main parts of a conventional power supply voltage monitoring device, and FIG. 4 is an explanatory diagram of the operation of the power supply voltage monitoring device shown in FIG. 3. In the figure, 4a, 8a, 12a are light emitting diodes, 4b, 8b, 12b are phototransistors,
13 is a logic operation means, and 14 is a resistor. In addition,
In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
つ、それぞれの直流電源に応じた所定の直流電圧
レベルで発光する発光手段と、これらの発光手段
に１対１に対応させ、かつ、前記発光手段からの
光を受光する受光手段と、前記発光手段が全て発
光した場合、第１のレベルの電圧を、前記発光手
段のうち少なくとも１つが発光しない場合、第２
のレベルの電圧を出力する論理演算手段とを備え
たことを特徴とする電源電圧監視装置。 Light-emitting means each connected to a plurality of DC power supplies and emitting light at a predetermined DC voltage level corresponding to each DC power supply; When at least one of the light emitting means does not emit light, the voltage at the first level is applied to the light receiving means for receiving the light, and when the light emitting means all emit light, the voltage at the second level is applied.
1. A power supply voltage monitoring device comprising: logic operation means for outputting a voltage at a level of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15134387U JPS6455464U (en) | 1987-10-02 | 1987-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15134387U JPS6455464U (en) | 1987-10-02 | 1987-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6455464U true JPS6455464U (en) | 1989-04-05 |
Family
ID=31425302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15134387U Pending JPS6455464U (en) | 1987-10-02 | 1987-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6455464U (en) |
-
1987
- 1987-10-02 JP JP15134387U patent/JPS6455464U/ja active Pending