JPS6081047U - Automotive lamp breakage detection circuit - Google Patents
Automotive lamp breakage detection circuitInfo
- Publication number
- JPS6081047U JPS6081047U JP17240883U JP17240883U JPS6081047U JP S6081047 U JPS6081047 U JP S6081047U JP 17240883 U JP17240883 U JP 17240883U JP 17240883 U JP17240883 U JP 17240883U JP S6081047 U JPS6081047 U JP S6081047U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- voltage
- load current
- lamp
- breakage detection
- 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
図面は本考案に係る自動車用ランプ断芯検出回路の概略
系統図である。
１０・・・・・・自動車用ランプ断芯検出回路、１２・
・・・・・パワースイッチ、１４Ａ乃至１４Ｄ・・・・
・・ランプ、１８・・・・・・分圧器、２０・・・・・
・比較器。The drawing is a schematic diagram of an automotive lamp breakage detection circuit according to the present invention. 10...Automotive lamp breakage detection circuit, 12.
...Power switch, 14A to 14D...
... Lamp, 18 ... Voltage divider, 20 ...
・Comparator.
Claims (1)
れるように並列に接続された複数のランプと前記ランプ
に流れる負荷電流を検出する負荷電流検出抵抗と前記負
荷電流検出抵抗の電圧降下と基準電圧とを比較する比較
器とから成る自動車用ランプ断芯検出回路において、前
記負荷電流検出抵抗は前記パワースイッチに並列接続さ
れ、前記基準電圧は前記ランプの消灯時にそのすべてが
正常であるときには前記ランプ並列回路の両端電圧より
大きく、また前記ランプの消灯時にその１つでも断芯し
ているときには前記ランプ並列回路の両端電圧より小さ
くなるように設定されていることを特徴とする自動車用
ランプ断芯検出回路。A plurality of lamps connected in parallel so as to be driven from an automobile power supply via one power switch, a load current detection resistor for detecting a load current flowing through the lamps, a voltage drop across the load current detection resistor, and a reference voltage. In the automotive lamp breakage detection circuit, the load current detection resistor is connected in parallel to the power switch, and the reference voltage is set to A lamp disconnection for an automobile, characterized in that the voltage is set to be higher than the voltage across the parallel circuit, and lower than the voltage across the lamp parallel circuit when even one of the lamps is disconnected when the lamp is turned off. detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17240883U JPS6081047U (en) | 1983-11-09 | 1983-11-09 | Automotive lamp breakage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17240883U JPS6081047U (en) | 1983-11-09 | 1983-11-09 | Automotive lamp breakage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6081047U true JPS6081047U (en) | 1985-06-05 |
Family
ID=30375823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17240883U Pending JPS6081047U (en) | 1983-11-09 | 1983-11-09 | Automotive lamp breakage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6081047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015044423A (en) * | 2013-08-27 | 2015-03-12 | 株式会社デンソー | Abnormality detection device for led lighting part |
-
1983
- 1983-11-09 JP JP17240883U patent/JPS6081047U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015044423A (en) * | 2013-08-27 | 2015-03-12 | 株式会社デンソー | Abnormality detection device for led lighting part |
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