JPS58182298U - Display device lamp burnout automatic detection circuit - Google Patents
Display device lamp burnout automatic detection circuitInfo
- Publication number
- JPS58182298U JPS58182298U JP7771182U JP7771182U JPS58182298U JP S58182298 U JPS58182298 U JP S58182298U JP 7771182 U JP7771182 U JP 7771182U JP 7771182 U JP7771182 U JP 7771182U JP S58182298 U JPS58182298 U JP S58182298U
- Authority
- JP
- Japan
- Prior art keywords
- display device
- detection circuit
- automatic detection
- circuit
- lamp burnout
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案−実施例の嚢示装置のランプ切れ自動検出回
路を示す電気的接続図である。
Ｐ・・・電源正極、Ｎ・・・電源負極、ＣＮ・・・表示
条件接点、Ｌ・・・ランプ、Ｒ１・・・抵抗、Ｄ亡・ダ
イオード、Ｄ２・・・ツェナダイオード、ＲＹ・・・リ
レー。The figure is an electrical connection diagram showing an automatic lamp burn-out detection circuit of an embodiment of the present invention. P...Positive power supply, N...Negative power supply, CN...Display condition contact, L...Lamp, R1...Resistor, D-diode, D2...Zena diode, RY... relay.
Claims (1)
複数のランプが接続されてなる表示装置において、前記
各表示条件接点とランプ間にそれぞれ直列に接続された
抵抗と、この各抵抗とランプ間にそれぞれ一端が接続さ
れ回り込み防止用のダイオードおよびツェナダイオード
が直列に接続されて他端がそれぞれ１個のリレーのコイ
ルの一端に接続された回路と、前記リレーのコイルの他
端を前記電源負極に接続する回路とを具えてなる表示装
置のランプ切れ自動検出回路。In a display device in which a plurality of lamps are connected between a power source positive electrode and a power source negative electrode through display condition contacts, a resistor is connected in series between each of the display condition contacts and the lamps, and a resistor is connected between each of the resistances and the lamps. A circuit in which one end of each is connected to the circuit, a loop prevention diode and a Zener diode are connected in series, and the other end is connected to one end of the coil of one relay, and the other end of the coil of the relay is connected to the negative terminal of the power supply. An automatic lamp burnout detection circuit for a display device, comprising a circuit connected to the display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7771182U JPS58182298U (en) | 1982-05-28 | 1982-05-28 | Display device lamp burnout automatic detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7771182U JPS58182298U (en) | 1982-05-28 | 1982-05-28 | Display device lamp burnout automatic detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58182298U true JPS58182298U (en) | 1983-12-05 |
Family
ID=30086962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7771182U Pending JPS58182298U (en) | 1982-05-28 | 1982-05-28 | Display device lamp burnout automatic detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58182298U (en) |
-
1982
- 1982-05-28 JP JP7771182U patent/JPS58182298U/en active Pending
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