JPH0183300U - - Google Patents
Info
- Publication number
- JPH0183300U JPH0183300U JP1987179782U JP17978287U JPH0183300U JP H0183300 U JPH0183300 U JP H0183300U JP 1987179782 U JP1987179782 U JP 1987179782U JP 17978287 U JP17978287 U JP 17978287U JP H0183300 U JPH0183300 U JP H0183300U
- Authority
- JP
- Japan
- Prior art keywords
- filament
- preheating
- voltage side
- winding
- applies
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
本考案の他の実施例の断面図、第３図は本考案の
さらに他の実施例の断面図、第４図は本考案の別
の実施例の断面図、第５図は本考案のさらに別の
実施例の断面図、第６図は上記各実施例の全体構
成を示す回路図、第７図ａ乃至ｄは同上の動作説
明図、第８図は従来の放電灯点灯装置の回路図、
第９図は同上に用いる予熱トランスの断面図であ
る。
ｌ１，ｌ２は放電灯、Ｔ２は予熱トランス、ｅ
１は１次巻線、ｆ０，ｆ１，ｆ２は予熱巻線、Ｉ
Ｖは高周波インバータである。
Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a sectional view of another embodiment of the invention, Fig. 3 is a sectional view of yet another embodiment of the invention, and Fig. 4 is a sectional view of the present invention. FIG. 5 is a cross-sectional view of yet another embodiment of the invention, FIG. 6 is a circuit diagram showing the overall configuration of each of the above embodiments, and FIGS. 7 a to d are the same as above. Figure 8 is a circuit diagram of a conventional discharge lamp lighting device.
FIG. 9 is a cross-sectional view of a preheating transformer used in the above. l 1 and l 2 are discharge lamps, T 2 is a preheating transformer, e
1 is the primary winding, f 0 , f 1 , f 2 are the preheating windings, I
V is a high frequency inverter.
Claims (1)
し、直列２灯の放電灯を点灯する点灯用電源と、
直列２灯の放電灯における高圧側、共通側、低圧
側の各フイラメントに上記高周波よりも低い周波
数のフイラメント電圧を印加する予熱トランスと
を有し、上記予熱トランスにおける１次巻線と上
記高圧側及び低圧側の各フイラメントの予熱巻線
との磁気的な結合力を、上記１次巻線と上記共通
側のフイラメントの予熱巻線との磁気的な結合力
よりも強くしたことを特徴とする放電灯点灯装置
。 a lighting power source that applies a high frequency voltage between both filaments of the discharge lamp to light two discharge lamps in series;
A preheating transformer that applies a filament voltage of a frequency lower than the high frequency to each filament on the high voltage side, common side, and low voltage side of two discharge lamps in series, and a primary winding in the preheating transformer and the high voltage side. and the magnetic coupling force between the preheating winding of each filament on the low voltage side is made stronger than the magnetic coupling force between the primary winding and the preheating winding of the filament on the common side. Discharge lamp lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17978287U JPH062239Y2 (en) | 1987-11-26 | 1987-11-26 | Discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17978287U JPH062239Y2 (en) | 1987-11-26 | 1987-11-26 | Discharge lamp lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0183300U true JPH0183300U (en) | 1989-06-02 |
| JPH062239Y2 JPH062239Y2 (en) | 1994-01-19 |
Family
ID=31471325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17978287U Expired - Lifetime JPH062239Y2 (en) | 1987-11-26 | 1987-11-26 | Discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062239Y2 (en) |
-
1987
- 1987-11-26 JP JP17978287U patent/JPH062239Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH062239Y2 (en) | 1994-01-19 |
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