JPH0328697U - - Google Patents
Info
- Publication number
- JPH0328697U JPH0328697U JP8977489U JP8977489U JPH0328697U JP H0328697 U JPH0328697 U JP H0328697U JP 8977489 U JP8977489 U JP 8977489U JP 8977489 U JP8977489 U JP 8977489U JP H0328697 U JPH0328697 U JP H0328697U
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- inverter
- coil
- power source
- photocoupler
- 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
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は一般的な放電灯点灯装置のブロツク図
。第２図は一般的な放電灯点灯装置の一実施例図
。第３図は本考案による放電灯点灯装置のブロツ
ク図。第４図は本考案による放電灯点灯装置の一
実施例図である。
１……直流回路、２……発振回路、３……絶縁
型の出力トランス、４……ランプ、５……異常検
出回路、３１……異常電圧検出コイル、３２，３
３，３４……ランプ電極加熱コイル、３５……出
力トランスの２次コイル、３６……出力トランス
の１次コイル、５１……整流ブリツジ、５２……
フオトカプラ、である。
Figure 1 is a block diagram of a general discharge lamp lighting device. FIG. 2 is a diagram showing one embodiment of a general discharge lamp lighting device. FIG. 3 is a block diagram of a discharge lamp lighting device according to the present invention. FIG. 4 is a diagram showing an embodiment of a discharge lamp lighting device according to the present invention. 1... DC circuit, 2... Oscillation circuit, 3... Insulated output transformer, 4... Lamp, 5... Abnormality detection circuit, 31... Abnormal voltage detection coil, 32, 3
3, 34... Lamp electrode heating coil, 35... Secondary coil of output transformer, 36... Primary coil of output transformer, 51... Rectifier bridge, 52...
It is a photocoupler.
Claims (1)
放電灯を点灯し、かつ前記イバータの絶縁型の出
力トランスに、前記放電灯の電極を加熱するコイ
ルを有し、前記加熱コイルの１つを異常電圧検出
コイルとして、整流ブリツジを介してフオトカプ
ラに接続し、前記加熱コイルの発生する電圧が一
定値以上になると、前記フオトカプラが動作し、
前記インバータの発振を制御してなる放電灯点灯
装置。 A discharge lamp is lit by an inverter that converts a DC power source into a high-frequency power source, and an insulated output transformer of the inverter has a coil that heats the electrodes of the discharge lamp, and one of the heating coils is activated to detect an abnormal voltage. The coil is connected to a photocoupler via a rectifying bridge, and when the voltage generated by the heating coil exceeds a certain value, the photocoupler operates,
A discharge lamp lighting device that controls oscillation of the inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8977489U JPH0328697U (en) | 1989-07-28 | 1989-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8977489U JPH0328697U (en) | 1989-07-28 | 1989-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0328697U true JPH0328697U (en) | 1991-03-22 |
Family
ID=31639333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8977489U Pending JPH0328697U (en) | 1989-07-28 | 1989-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328697U (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57148898A (en) * | 1981-03-11 | 1982-09-14 | Kyoshin Denki Seisakusho Kk | Device for protecting discharge lamp |
| JPS609197B2 (en) * | 1979-09-20 | 1985-03-08 | 三和シヤツタ−工業株式会社 | Door frame corner joint structure |
| JPS6131600A (en) * | 1984-07-20 | 1986-02-14 | 株式会社 間組 | Insert of steel material |
| JPS6210000A (en) * | 1985-07-09 | 1987-01-17 | 伊藤 行雄 | Putting leaf method |
| JPS6276191A (en) * | 1985-09-30 | 1987-04-08 | 東芝ライテック株式会社 | Discharge lamp firing circuit |
| JPH01140594A (en) * | 1987-11-25 | 1989-06-01 | Toshiba Electric Equip Corp | Fluorescent lamp lighting device |
| JPH01289095A (en) * | 1988-05-17 | 1989-11-21 | Toshiba Lighting & Technol Corp | Electric discharge lamp lighting device |
-
1989
- 1989-07-28 JP JP8977489U patent/JPH0328697U/ja active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609197B2 (en) * | 1979-09-20 | 1985-03-08 | 三和シヤツタ−工業株式会社 | Door frame corner joint structure |
| JPS57148898A (en) * | 1981-03-11 | 1982-09-14 | Kyoshin Denki Seisakusho Kk | Device for protecting discharge lamp |
| JPS6131600A (en) * | 1984-07-20 | 1986-02-14 | 株式会社 間組 | Insert of steel material |
| JPS6210000A (en) * | 1985-07-09 | 1987-01-17 | 伊藤 行雄 | Putting leaf method |
| JPS6276191A (en) * | 1985-09-30 | 1987-04-08 | 東芝ライテック株式会社 | Discharge lamp firing circuit |
| JPH01140594A (en) * | 1987-11-25 | 1989-06-01 | Toshiba Electric Equip Corp | Fluorescent lamp lighting device |
| JPH01289095A (en) * | 1988-05-17 | 1989-11-21 | Toshiba Lighting & Technol Corp | Electric discharge lamp lighting device |
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