JPS63202100U - - Google Patents
Info
- Publication number
- JPS63202100U JPS63202100U JP9328087U JP9328087U JPS63202100U JP S63202100 U JPS63202100 U JP S63202100U JP 9328087 U JP9328087 U JP 9328087U JP 9328087 U JP9328087 U JP 9328087U JP S63202100 U JPS63202100 U JP S63202100U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric transformer
- discharge lamp
- circuit
- feedback
- lighting 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
Landscapes
- Ac-Ac Conversion (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は本考案の第１の実施例を示す回路図、
第２図は本考案の第２の実施例を示す回路図、第
３図は本考案の第３の実施例を示す回路図、第４
図は従来装置の回路図である。
１，１Ａ，１Ｂ……放電灯点灯装置、２，２Ａ
，２Ｂ……点灯回路、４……圧電トランス、２０
……放電灯、ＣＦ……帰還コンデンサ。
FIG. 1 is a circuit diagram showing a first embodiment of the present invention;
2 is a circuit diagram showing a second embodiment of the present invention, FIG. 3 is a circuit diagram showing a third embodiment of the present invention, and FIG. 4 is a circuit diagram showing a third embodiment of the present invention.
The figure is a circuit diagram of a conventional device. 1, 1A, 1B...Discharge lamp lighting device, 2, 2A
, 2B...Lighting circuit, 4...Piezoelectric transformer, 20
...Discharge lamp, CF...Feedback capacitor.
Claims (1)
ランスを用いた点灯回路とを有する放電灯点灯装
置であつて、放電灯の一方の端子に出力端子を接
続した圧電トランスと、この圧電トランスを駆動
する圧電トランス駆動回路と、圧電トランスに交
流信号を印加するスイツチング回路と、前記圧電
トランスから帰還信号を得て前記スイツチング回
路のスイツチング条件を設定する帰還回路とを有
することを特徴とする放電灯点灯装置。 (2) 前記帰還回路における帰還信号は、前記圧
電トランスの出力端子から得るものである実用新
案登録請求の範囲第１項記載の放電灯点灯装置。 (3) 前記帰還回路における帰還信号は、前記圧
電トランスに設けた帰還電極から得るものである
実用新案登録請求の範囲第１項記載の放電灯点灯
装置。[Scope of Claim for Utility Model Registration] (1) A discharge lamp lighting device having a discharge lamp and a lighting circuit using a piezoelectric transformer for lighting the discharge lamp, wherein an output terminal is connected to one terminal of the discharge lamp. a piezoelectric transformer, a piezoelectric transformer drive circuit that drives the piezoelectric transformer, a switching circuit that applies an alternating current signal to the piezoelectric transformer, and a feedback circuit that obtains a feedback signal from the piezoelectric transformer and sets switching conditions for the switching circuit. A discharge lamp lighting device comprising: (2) The discharge lamp lighting device according to claim 1, wherein the feedback signal in the feedback circuit is obtained from the output terminal of the piezoelectric transformer. (3) The discharge lamp lighting device according to claim 1, wherein the feedback signal in the feedback circuit is obtained from a feedback electrode provided on the piezoelectric transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9328087U JPS63202100U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9328087U JPS63202100U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63202100U true JPS63202100U (en) | 1988-12-27 |
Family
ID=30955734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9328087U Pending JPS63202100U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63202100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167694A (en) * | 1992-11-27 | 1994-06-14 | Nobumi Hagiwara | Driving system for cold cathode-ray tube using ceramic transformer |
-
1987
- 1987-06-17 JP JP9328087U patent/JPS63202100U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06167694A (en) * | 1992-11-27 | 1994-06-14 | Nobumi Hagiwara | Driving system for cold cathode-ray tube using ceramic transformer |
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