JPH01102876U - - Google Patents
Info
- Publication number
- JPH01102876U JPH01102876U JP19917087U JP19917087U JPH01102876U JP H01102876 U JPH01102876 U JP H01102876U JP 19917087 U JP19917087 U JP 19917087U JP 19917087 U JP19917087 U JP 19917087U JP H01102876 U JPH01102876 U JP H01102876U
- Authority
- JP
- Japan
- Prior art keywords
- timer
- lamp current
- falls below
- malfunction
- certain value
- 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 3
- 230000007257 malfunction Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図はこの考案の構成図を示している。また
第２図はこの考案の実施例を示している。
FIG. 1 shows a block diagram of this invention. Moreover, FIG. 2 shows an embodiment of this invention.
Claims (1)
状態を検出するランプ電流検出部と、電源電圧が
一定値以下になつたときから一定時間が経過する
までオンするタイマと、前記タイマがオフ状態で
かつ前記ランプ電流検出部が不点状態を検出して
いるときにのみ報知信号を出力する報知部と、を
備えてなる放電灯の不点検出装置。 A lamp current detection unit that detects a malfunction state in which the lamp current of the discharge lamp falls below a certain value, a timer that is turned on until a certain period of time has passed from when the power supply voltage falls below a certain value, and a timer that turns off the timer. a malfunction detection device for a discharge lamp, comprising: a notification section that outputs a notification signal only when the lamp current detection section detects a malfunction state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19917087U JPH01102876U (en) | 1987-12-28 | 1987-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19917087U JPH01102876U (en) | 1987-12-28 | 1987-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102876U true JPH01102876U (en) | 1989-07-11 |
Family
ID=31489639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19917087U Pending JPH01102876U (en) | 1987-12-28 | 1987-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102876U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965077A (en) * | 1972-10-27 | 1974-06-24 | ||
| JPS58123698A (en) * | 1982-01-15 | 1983-07-22 | 松下電工株式会社 | Discharge lamp misfire detector |
-
1987
- 1987-12-28 JP JP19917087U patent/JPH01102876U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965077A (en) * | 1972-10-27 | 1974-06-24 | ||
| JPS58123698A (en) * | 1982-01-15 | 1983-07-22 | 松下電工株式会社 | Discharge lamp misfire detector |