JPH037299U - - Google Patents
Info
- Publication number
- JPH037299U JPH037299U JP6850289U JP6850289U JPH037299U JP H037299 U JPH037299 U JP H037299U JP 6850289 U JP6850289 U JP 6850289U JP 6850289 U JP6850289 U JP 6850289U JP H037299 U JPH037299 U JP H037299U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection signal
- lamp
- comparison
- monitoring device
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は、この考案の好適な実施例を示した電
気回路図である。
１……ランプ、５……検出抵抗、６……比較回
路、７……基準電圧回路、８……出力回路、９…
…表示部、８１……発振部、８２……出力部。
FIG. 1 is an electrical circuit diagram showing a preferred embodiment of this invention. 1... Lamp, 5... Detection resistor, 6... Comparison circuit, 7... Reference voltage circuit, 8... Output circuit, 9...
...display section, 81... oscillation section, 82... output section.
Claims (1)
の両端子電圧と基準電圧の比較に基づき断線検出
信号及び短絡検出信号を出力する比較回路と、該
比較回路に基準電圧を入力する基準電圧回路と、
前記比較回路及び表示部間に接続した出力回路と
を備えたランプ回路監視装置に於いて、前記出力
回路は前記断線検出信号若しくは短絡検出信号の
いづれか一方の信号に応じて表示部を点滅する発
振部を有したことを特徴とするランプ回路監視装
置。 A detection resistor connected in series with the lamp, a comparison circuit that outputs a disconnection detection signal and a short circuit detection signal based on a comparison between the voltage across both terminals of the detection resistor and a reference voltage, and a reference voltage circuit that inputs a reference voltage to the comparison circuit. ,
In the lamp circuit monitoring device comprising the comparison circuit and an output circuit connected between the display section, the output circuit generates oscillation that causes the display section to blink in response to either the disconnection detection signal or the short circuit detection signal. 1. A lamp circuit monitoring device comprising: a lamp circuit monitoring device;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6850289U JPH037299U (en) | 1989-06-12 | 1989-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6850289U JPH037299U (en) | 1989-06-12 | 1989-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH037299U true JPH037299U (en) | 1991-01-24 |
Family
ID=31602995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6850289U Pending JPH037299U (en) | 1989-06-12 | 1989-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037299U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61121291A (en) * | 1984-11-16 | 1986-06-09 | オムロン株式会社 | Disconnection detector for lamp |
| JPS61156693A (en) * | 1984-12-28 | 1986-07-16 | 東芝ライテック株式会社 | Emergency lamp monitor circuit |
-
1989
- 1989-06-12 JP JP6850289U patent/JPH037299U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61121291A (en) * | 1984-11-16 | 1986-06-09 | オムロン株式会社 | Disconnection detector for lamp |
| JPS61156693A (en) * | 1984-12-28 | 1986-07-16 | 東芝ライテック株式会社 | Emergency lamp monitor circuit |