JPS625387U - - Google Patents
Info
- Publication number
- JPS625387U JPS625387U JP9730585U JP9730585U JPS625387U JP S625387 U JPS625387 U JP S625387U JP 9730585 U JP9730585 U JP 9730585U JP 9730585 U JP9730585 U JP 9730585U JP S625387 U JPS625387 U JP S625387U
- Authority
- JP
- Japan
- Prior art keywords
- display
- display device
- light
- photocoupler
- output
- 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
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Audible And Visible Signals (AREA)
- Alarm Systems (AREA)
Description
第１図は本考案に係る表示装置の監視回路の構
成を示す回路図、第２図は従来の表示装置の監視
回路の構成を示す回路図である。
図中、１，１１……電源、２，１２……スイツ
チ、３，１３……端子、４，１４……入力端子、
５，１５……抵抗器、６，１６……発光ダイオー
ド、７……ホトカプラー、８……出力端子。
FIG. 1 is a circuit diagram showing the configuration of a monitoring circuit of a display device according to the present invention, and FIG. 2 is a circuit diagram showing the configuration of a monitoring circuit of a conventional display device. In the figure, 1, 11... power supply, 2, 12... switch, 3, 13... terminal, 4, 14... input terminal,
5, 15...Resistor, 6,16...Light emitting diode, 7...Photocoupler, 8...Output terminal.
Claims (1)
表示器を点灯する表示回路を並列に接続してなる
表示部を具備する表示装置において、前記表示回
路の共通接続部とホトカプラーを構成する発光ダ
イオードを直列に接続すると共に、該ホトカプラ
ーを構成する受光トランジスターより前記表示回
路のいずれかが作動した場合に出力を出すように
構成したことを特徴とする表示装置の監視回路。 In a display device comprising a display section formed by connecting display circuits in parallel to light the display device by passing current through the display device from a power source, a light emitting diode forming a photocoupler with a common connection portion of the display circuit is provided. 1. A monitoring circuit for a display device, wherein the monitoring circuit is connected in series and is configured to output an output when any of the display circuits is activated from a light-receiving transistor constituting the photocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9730585U JPS625387U (en) | 1985-06-26 | 1985-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9730585U JPS625387U (en) | 1985-06-26 | 1985-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS625387U true JPS625387U (en) | 1987-01-13 |
Family
ID=30964118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9730585U Pending JPS625387U (en) | 1985-06-26 | 1985-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS625387U (en) |
-
1985
- 1985-06-26 JP JP9730585U patent/JPS625387U/ja active Pending