JPS59201398A - Device for firing discharge lamp - Google Patents
Device for firing discharge lampInfo
- Publication number
- JPS59201398A JPS59201398A JP7598483A JP7598483A JPS59201398A JP S59201398 A JPS59201398 A JP S59201398A JP 7598483 A JP7598483 A JP 7598483A JP 7598483 A JP7598483 A JP 7598483A JP S59201398 A JPS59201398 A JP S59201398A
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- coil
- secondary coil
- coils
- filament
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は放電灯点灯装置に関するもので、高周波イン
バータを用すて放電灯の複数を点灯する場合に、各フィ
ラメントの直雌電咋による予熱の際の偏磁の防止と、点
灯始動の確実化を甲ることを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a discharge lamp lighting device, which prevents biased magnetism during preheating by direct female electric current of each filament when lighting a plurality of discharge lamps using a high frequency inverter. The purpose is to ensure that the lights start properly.
この発明の実施例を図によって説明する。１゜ＩＡげ置
端電源の一方（たとえば正）の端子、２け高周波インバ
ータで、］−の例はトランジスタ３、発振トランス４及
び帰還コイル５等≠λら構成されてあり一６社始動用の
スイッチ素子である。これ氏の構成社従来の本のと＠に
異る本のでけな層。Embodiments of the invention will be described with reference to the drawings. 1゜One (for example, positive) terminal of the IA terminal power supply, a 2-digit high-frequency inverter, ]- example is composed of a transistor 3, an oscillation transformer 4, a feedback coil 5, etc. This is a switch element. Mr. Kore's constituent company is an extraordinary layer of books that are different from conventional books.
１、フＡｉ放電灯である。そして１次コイ７Ｌ／８がト
ランジスタ３に接続されである発振トランス４に２個の
２次コイ７１／９．１０を用意する。又１１゜１２け互
すに逆極性に接続されであるインダクタンスコイＶで、
第３図に示すように、Ｅ字型鉄心１３とＴ字型鉄心１４
とによって８宇型に構成された鉄心１４におけるその中
央脚１３Ａ巻装されである。なお第２１２は発振トラン
ス４の鉄心を示し−Ｅ字型鉄心１５．１６を互いに衝合
させて日宇型に構成された鉄心１ｔＶおはるその一方の
鉄心１５の中央脚１５Ａに１次コイル８を、又他方の鉄
心１６の中央脚１６Ａに２次コイＶ９．１０を巻装しで
ある。1. It is a FAI discharge lamp. The primary coil 7L/8 is connected to the transistor 3, and two secondary coils 71/9.10 are prepared in the oscillation transformer 4. Also, the inductance coils V are connected with 11° and 12 with opposite polarity,
As shown in FIG. 3, an E-shaped core 13 and a T-shaped core 14
The central leg 13A of the iron core 14 is wound around the core 14, which has an 8-shaped configuration. Reference numeral 212 indicates the iron core of the oscillation transformer 4. The E-shaped iron cores 15 and 16 are brought into contact with each other to form a 1 tV iron core. 8, and a secondary coil V9.10 is wound around the center leg 16A of the other iron core 16.
そして図雀ちも理解されるように一放電灯りの各フイリ
メン） ＩＥＩ、 １９の各一方の端部間に２次コイル
１０．インダクタンスコイ１ｖ１２ ノ直列回路を接続
する。又放電灯りＡの各フィラメント１８Ａ、１９Ａの
各一方の端部間に２次コイル９とインダクタンスコイル
１１の直列回路を接続する。And as it will be understood, there is one secondary coil 10 between each one end of each filament of the discharge lamp (IEI, 19). Connect the series circuit of the inductance coil 1v12. Further, a series circuit of a secondary coil 9 and an inductance coil 11 is connected between one end of each filament 18A, 19A of the discharge lamp A.
又フイツメン）１９．１９Ａ の各他方の端部同志を接
続する。更に放電灯マのフィラメント１８の他方の端部
は電源端子ＩＡＶＣ１又放電灯７Ａのフイラメン）１８
Ａの他方の端部は一子熱電流カット用のスイッチ素子２
０及び予熱電流調整用のインピーダンス素子（図は抵抗
）２１を介して一直流電源の他方の端子（図の例ではア
ース）に接続しである。Also, connect the other ends of the fittings (19.19A) to each other. Further, the other end of the filament 18 of the discharge lamp is connected to the power supply terminal IAVC1 or the filament 18 of the discharge lamp 7A.
The other end of A is a switch element 2 for cutting thermal current of one child.
0 and the other terminal of the DC power supply (ground in the example shown) via an impedance element (resistor in the figure) 21 for preheating current adjustment.
以上の構成にお論で、今スイッチ素子２０ヲオンとした
と負、電源端子１Ａ赤医−フィラメント１８．２次コイ
ル１０．インダクタンスコイＡ／１２゜フィラメント１
９，１９Ａ、インダクタンスコイル１１．２次コイＡ／
９．フィラメント１ｓＡ、［抗２１及びスイッチ素子２
０を経てアースに至る回路に直潴電流が流れる。この回
路Ｖｉｌｔすべてのフィラメントを含んでいるので、す
べてのフィラメントが予熱されるようになる。このとき
２次コイル９．ＩＯＫけ互Ｌ／−ｋに逆方向に直流電猾
雀流れるので、鉄心が偏磁されるのが防止で＾る。Based on the above configuration, if we turn on the switch element 20, we will turn on the negative power terminal 1A, the filament 18, the secondary coil 10. Inductance coil A/12° filament 1
9,19A, inductance coil 11.Secondary coil A/
9. Filament 1sA, [resistance 21 and switch element 2
A direct current flows through the circuit that goes through 0 to ground. This circuit Vilt contains all filaments so that all filaments are preheated. At this time, the secondary coil 9. Since the direct current flows in the opposite direction to IOK L/-k, it prevents the iron core from being biased.
放電灯を点灯させるＶｒＨ−スイッチ素子６をオンとし
、それまでオンとされてｂたスイッチ素子２０をオフと
すればよ−。スイッチ素子６０オンにより高周波インバ
ータ２が発振を開始し、２次コイＡ／９．１０に２次電
圧が発生する。この２次電圧が各放電灯り、 ７Ａに印
加され−これにより各放電灯は点灯する。この点灯によ
り放電灯りのランプ電流は２次コイか１０．インダクタ
ンスコイ７１／ １２全通して流れ、放電灯１Ａのラン
プ電流は２次コイル９．インダクタンスコイＡ／１１を
通して猾れるようになる。The VrH switch element 6, which lights up the discharge lamp, is turned on, and the switch element 20, which had been turned on until then, is turned off. When the switch element 60 is turned on, the high frequency inverter 2 starts oscillating, and a secondary voltage is generated in the secondary coil A/9.10. This secondary voltage is applied to each discharge lamp, 7A - thereby lighting each discharge lamp. 10. Due to this lighting, the lamp current of the discharge lamp becomes secondary coil or 10. The lamp current of the discharge lamp 1A flows through the entire inductor coil 71/12, and the lamp current of the discharge lamp 1A flows through the secondary coil 9. It becomes possible to pass through the inductance coil A/11.
ところで前記した放電灯り、′７への始動はインダクタ
ンスコイル１１．１２が設置しそある赤ち確実に行われ
るのである。すなわち仮にインダクタンスコイル１１．
１２を設置しておかなかった場合は−たとえば２次コイ
１ｖｌＯの誘起電圧によって放電灯）が放電灯フへより
さきに始動したとすると一２次コイ７１ｚ Ｉ Ｑの誘
起電圧は放電灯マの岬ンブ電圧Ｋまで低下する。一方２
次コイ７Ｌ／９，１０け同一鉄心に巻装されているので
、２次コイル１０の誘起電圧は２次コイル９の誘起電圧
にほぼ等しくなる。そのためこの電圧では放電灯りＡを
始動するに足りないので、放電灯フＡけ点灯できなくな
るのである。By the way, the above-mentioned discharge lamp '7 can be started with certainty if the inductance coils 11 and 12 are installed. That is, if the inductance coil 11.
12 is not installed (for example, if the discharge lamp is started by the induced voltage of the secondary coil 1vlO) before the discharge lamp is turned on, the induced voltage of the primary secondary coil 71z IQ will be The cape voltage drops to K. On the other hand 2
Since the secondary coils 7L/9 and 10 are wound around the same core, the induced voltage in the secondary coil 10 is approximately equal to the induced voltage in the secondary coil 9. Therefore, this voltage is insufficient to start the discharge lamp A, and the discharge lamp A cannot be turned on.
ところ雀図のよりにインダクタンスコイ１ｖｌｌ。However, according to the sparrow diagram, there is an inductance of 1vll.
１２を設置しておくと、さきに放電灯りが点灯したとす
ると−インダクタンスコイル１２に畔ンプ電ｉ’ｓ値！
汗れ、その両端に電圧−２５ヨ発生する。しかしインダ
クタンスコイｖ１３−ｕインダクタンスゴイル１２と逆
極性に巻回しであるため一２次コイル９の誘起電圧より
高す電圧省放電灯７ＡＫ印加されるととになり−とれｌ
でより放電灯７八は点灯することになるのである。なお
両数電灯り、７Ａがと本に点灯すれば、インダクタンス
コイ７Ｌ／１１゜１２け互いに逆極性に巻回しであるの
で一誘起電圧はほとんど零とがる。12 is installed, and if the discharge lamp is turned on earlier, - the inductance coil 12 will have the voltage i's value!
It sweats, and a voltage of -25 yo is generated across it. However, since the inductance coil v13-u is wound with the opposite polarity to the inductance coil 12, when a voltage higher than the induced voltage of the primary secondary coil 9 is applied to the saving discharge lamp 7AK, it becomes -.
Therefore, the discharge lamps 78 are turned on. Note that when both lights, 7A, are lit, the inductance coil 7L/11°12 is wound with opposite polarity to each other, so the induced voltage drops to almost zero.
−の実施例は２個の放電灯を直列予熱、並列点灯する構
成であるが、放電灯を更に多灯にわたって点灯すること
け任意である。ただしその数は偶数個であり、又これに
応じて２次コイＶの数を同数だけ増すよりにすればより
０
以上詳述したようにこの発明によれば、放電灯を並列点
灯させるにあたり、２個の２次コイｙｖヲ有する発振ト
ランスを用−る場合でも、各放電灯を確実に点灯させる
ことづ！で舞、又予熱時において本前記２次コイルを介
して予熱電流を流して本−偏磁されることがな−とｂつ
だ効果を奏する。Although the embodiment - has a configuration in which two discharge lamps are preheated in series and lit in parallel, it is optional to light more discharge lamps. However, the number is an even number, and if the number of secondary coils V is increased by the same number, it will be more Even when using an oscillation transformer with two secondary coils, each discharge lamp can be lit reliably! Furthermore, during preheating, a preheating current is passed through the secondary coil to prevent biased magnetization.
第１図はこの発明の実施例を示す回路図、第２１は発振
トランスの平断面ば一第３１はインダクタンスコイルの
平断面♂である。
１、ＩＡ・・・・・・電源端子、２・・・・・・高周波
インバータ、４・・・・・・Ｊｉ［） ランス、グ、′
７Ａ・・曲数Ｎ、灯、 ９ 、１０・・・・・・２次コ
イル、１１．１２・・・・・・ インタフタンスコイル
、１Ｂ、 ｌｑ、１８Ａ、１９Ａ・・・・・・フィラ
メント、２θ・・・・・・スイッチ素子
特許出願人 明治ナショナル工業株式会社“２：１代理
人 ｉｆｆやより 、−１１
（７）FIG. 1 is a circuit diagram showing an embodiment of the present invention, 21 is a plan cross section of an oscillation transformer, and 31 is a plan cross section ♂ of an inductance coil. 1, IA...Power supply terminal, 2...High frequency inverter, 4...Ji[) Lance, G,'
7A...number of songs N, light, 9, 10...secondary coil, 11.12...interface coil, 1B, lq, 18A, 19A...filament, 2θ・・・Switch element patent applicant Meiji National Industries Co., Ltd. “2:1 agent IF Yayori, -11 (7)
Claims (1)
ンバータの発振トランスに一少くとも第１及び第２の２
次コイルを設け、前記第１の２次コイルを第１のインダ
クタンスコイルを介して第１の放電灯にまた７３よって
接続し、又前記第２の２次コイルを第２のインダクタン
スコイルを介シテ第２の放電灯にまたがって接続すると
ともに、前記第１及び第２の２次コイルを一直流電源の
一方の端子かち一前記画放電灯の各フィラメント及び予
熱中ｄオンとされるスイッチ素子を経て前記直流電源の
他方の端子に至る直列回路中に直列に、かつ前記両２次
コイＶには互いに逆方向に直流電流が流れるように接続
してなり一更に前記第１及び第２のインダクタンスコイ
ルを互いに逆極性に接続して々る放電灯点灯装置。At least a first and a second oscillation transformer of a high frequency inverter that generates a high frequency output for starting and lighting a discharge lamp.
a secondary coil is provided, the first secondary coil is connected to the first discharge lamp via a first inductance coil, and the second secondary coil is connected to the first discharge lamp via a second inductance coil; The first and second secondary coils are connected to one terminal of a DC power supply, and one is connected to each filament of the discharge lamp and a switch element that is turned on during preheating. The first and second inductances are connected in series in a series circuit extending through the coils to the other terminal of the DC power supply, and are connected so that DC currents flow in opposite directions to each other in both the secondary coils V. A discharge lamp lighting device in which coils are connected with opposite polarities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7598483A JPS59201398A (en) | 1983-04-28 | 1983-04-28 | Device for firing discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7598483A JPS59201398A (en) | 1983-04-28 | 1983-04-28 | Device for firing discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59201398A true JPS59201398A (en) | 1984-11-14 |
| JPH0312438B2 JPH0312438B2 (en) | 1991-02-20 |
Family
ID=13592032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7598483A Granted JPS59201398A (en) | 1983-04-28 | 1983-04-28 | Device for firing discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59201398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006172922A (en) * | 2004-12-16 | 2006-06-29 | Nitta Ind Corp | Cold-cathode tube drive circuit |
| US7449848B2 (en) | 2004-11-04 | 2008-11-11 | Funai Electric Co., Ltd. | Driving circuit for cold-cathode tube |
-
1983
- 1983-04-28 JP JP7598483A patent/JPS59201398A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7449848B2 (en) | 2004-11-04 | 2008-11-11 | Funai Electric Co., Ltd. | Driving circuit for cold-cathode tube |
| JP2006172922A (en) * | 2004-12-16 | 2006-06-29 | Nitta Ind Corp | Cold-cathode tube drive circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0312438B2 (en) | 1991-02-20 |
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