JPH037915Y2 - - Google Patents
Info
- Publication number
- JPH037915Y2 JPH037915Y2 JP6530283U JP6530283U JPH037915Y2 JP H037915 Y2 JPH037915 Y2 JP H037915Y2 JP 6530283 U JP6530283 U JP 6530283U JP 6530283 U JP6530283 U JP 6530283U JP H037915 Y2 JPH037915 Y2 JP H037915Y2
- Authority
- JP
- Japan
- Prior art keywords
- secondary coil
- discharge lamp
- wire
- series circuit
- coil
- 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.)
- Expired
Links
- 230000010355 oscillation Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
【考案の詳細な説明】
この考案は放電灯点灯装置に関し、高周波イン
バータを用いて放電灯を点灯するに際し、予熱電
流の制御の簡易化と点灯中における効率の向上を
図ることを目的とする。[Detailed description of the invention] This invention relates to a discharge lamp lighting device, and aims to simplify control of preheating current and improve efficiency during lighting when lighting a discharge lamp using a high frequency inverter.
この考案の実施例を図によつて説明する。１，
１Ａは直流電源の一方（たとえば正）の端子、２
は高周波インバータで、図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等から構成
されてあり、６は始動用のスイツチ素子である。
これらの構成は従来のものと特に異なるものでは
ない。７は放電灯である。そして１次コイル８が
トランジスタ３に接続されてある発振トランス４
に２個の２次コイル９，１０を用意する。１１は
予熱電流をオン，オフするためのスイツチ素子、
１２は予熱電流制限用の抵抗、１３はスイツチ素
子１１の開閉時に発生するサージを吸収するため
のコンデンサ、抵抗等からなるインピーダンス素
子である。 An embodiment of this invention will be described with reference to the drawings. 1,
1A is one (for example, positive) terminal of the DC power supply, 2
1 is a high frequency inverter, and the example shown in the figure is composed of a transistor 3, an oscillation transformer 4, a feedback coil 5, etc., and 6 is a switch element for starting.
These configurations are not particularly different from conventional ones. 7 is a discharge lamp. And an oscillation transformer 4 whose primary coil 8 is connected to the transistor 3
Two secondary coils 9 and 10 are prepared. 11 is a switch element for turning on and off the preheating current;
Reference numeral 12 represents a resistor for limiting preheating current, and reference numeral 13 represents an impedance element consisting of a capacitor, a resistor, etc., for absorbing surges generated when the switch element 11 is opened and closed.
発振トランス４はたとえば第２図に示すように
構成される。すなわちＥ字型の鉄心１４，１５を
もつて日字型の鉄心１６を構成し、一方の鉄心１
４の中央脚に１次コイル８を、又他方の鉄心１５
の中央脚に２次コイル９，１０を巻装してなる。 The oscillation transformer 4 is constructed, for example, as shown in FIG. In other words, E-shaped cores 14 and 15 constitute a Japanese-shaped core 16, and one core 1
The primary coil 8 is attached to the center leg of 4, and the other iron core 15 is
The secondary coils 9 and 10 are wound around the central leg of the coil.
以上の構成において、まずスイツチ素子１１が
オンとされると、電源端子１Ａから、放電灯７の
一方のフイラメント１７、２次コイル１０、他方
のフイラメント１８、２次コイル９、抵抗１２、
スイツチ素子１１を経て直流電流が流れ、これに
より各フイラメント１７，１８が予熱されるよう
になる。このとき２次コイル９，１０に流れる直
流電流は互いに逆方向に流れるので、鉄心１５が
偏磁されることがない。したがつて次に高周波イ
ンバータ２を動作させても、２次コイル１０には
高周波高電圧が何らの支障もなく発生できる。 In the above configuration, when the switch element 11 is first turned on, one filament 17 of the discharge lamp 7, the secondary coil 10, the other filament 18, the secondary coil 9, the resistor 12,
A direct current flows through the switch element 11, which causes each filament 17, 18 to be preheated. At this time, the direct currents flowing through the secondary coils 9 and 10 flow in opposite directions, so that the iron core 15 is not biased. Therefore, even when the high frequency inverter 2 is operated next time, a high frequency high voltage can be generated in the secondary coil 10 without any problem.
上記のようにしてフイラメント１７，１８が充
分予熱された状態において、スイツチ素子１１を
オフとして予熱電流を断つとともに、スイツチ素
子６をオンとして高周波インバータ２を動作させ
る。これによつて２次コイル１０に誘起する高周
波高電圧が放電灯７に印加され、放電灯７は点灯
する。点灯中ランプ電流は２次コイル１０を流れ
る。そして２次コイル９は放電灯７の点灯には干
与しない。 With the filaments 17 and 18 sufficiently preheated as described above, the switch element 11 is turned off to cut off the preheating current, and the switch element 6 is turned on to operate the high frequency inverter 2. As a result, a high frequency high voltage induced in the secondary coil 10 is applied to the discharge lamp 7, and the discharge lamp 7 is lit. During lighting, lamp current flows through the secondary coil 10. The secondary coil 9 does not affect the lighting of the discharge lamp 7.
ところで上記の説明からも理解されるように、
予熱電流は直流電流であるから、予熱電流を制御
するためには抵抗１１の調整によるしかない。な
お予熱時においては、電源端子１Ａの電源電圧か
らフイラメント１７，１８の電圧を差引いた残り
の電圧を２次コイル９，１０と抵抗１２とで負担
することになる。一方この抵抗１２は抵抗値を小
さくするか或いは使用せず、これに代えて２次コ
イル９，１０の直流抵抗分をできるだけ利用でき
るようにすれば、この種装置の小型化、低廉化に
有効である。しかし２次コイル９，１０の抵抗値
を大きくしようとするには、電線の線径として細
いものを使用することが必要である。 By the way, as can be understood from the above explanation,
Since the preheating current is a direct current, the only way to control the preheating current is to adjust the resistor 11. Note that during preheating, the secondary coils 9 and 10 and the resistor 12 bear the remaining voltage after subtracting the voltage of the filaments 17 and 18 from the power supply voltage of the power supply terminal 1A. On the other hand, reducing the resistance value of this resistor 12 or not using it, and instead making use of the direct current resistance of the secondary coils 9 and 10 as much as possible, will be effective in making this type of device more compact and inexpensive. It is. However, in order to increase the resistance value of the secondary coils 9 and 10, it is necessary to use wires with a small diameter.
しかし放電灯７の点灯中は、ランプ電流は２次
コイル１０に流れるので、２次コイルの電線の線
径を細くすると、ランプ電流による銅損が増加し
てしまつて点灯中における効率が悪くなつて都合
が悪い。ところがランプ電流は２次コイル１０に
流れるにしても、２次コイル９には流れない。し
たがつてこの考案では２次コイル９の電線として
細い径のものを用いて抵抗分を大きくし、予熱電
流を制限するようにするとともに、２次コイル１
０の電線として太い径のものを用い、抵抗分を小
さくして点灯中における効率の低下を防止する。
すなわち予熱電流の制御と点灯中の効率の向上の
両方を２次コイル９，１０の電線の線径に差をも
たせるだけで可能となるのである。 However, when the discharge lamp 7 is lit, the lamp current flows through the secondary coil 10, so if the wire diameter of the secondary coil is made thinner, the copper loss due to the lamp current will increase and the efficiency during lighting will deteriorate. It's inconvenient. However, even though the lamp current flows through the secondary coil 10, it does not flow through the secondary coil 9. Therefore, in this invention, a wire with a small diameter is used as the wire of the secondary coil 9 to increase the resistance and limit the preheating current.
A wire with a large diameter is used as the zero wire to reduce the resistance and prevent a drop in efficiency during lighting.
That is, it is possible to both control the preheating current and improve the efficiency during lighting by simply creating a difference in the wire diameters of the wires of the secondary coils 9 and 10.
なおこのように線径に差をもたせて２次コイル
を構成するのに代えてリツツ線を使用することも
考えられる。すなわち第３図に示すような単線１
８に対してリツツ線１９は周知のように第４図に
示すように細線２０の複数本をより線（より線と
しないものもある。）とし、その外周を絶縁性の
糸又はシート２１で結束して構成されている。同
一外形断面において、直流抵抗については単線１
８の方がリツツ線１９よりも小さい。しかし高周
波に対してはリツツ線１９の方が単線１８よりも
導体表面積が大きいので、表皮効果に基いて抵抗
が小さくなる。したがつて少くとも２次コイル１
０についてこれをリツツ線１９で構成すれば、上
記した理由により点灯中における効率を向上させ
ることができるようになる。このようにリツツ線
を使用すれば発振トランス４として小型化が可能
となる。 Note that instead of configuring the secondary coil with a difference in wire diameter in this way, it is also possible to use a wire. In other words, a single wire 1 as shown in Figure 3
In contrast to 8, the Ritsu wire 19 is made by using a plurality of thin wires 20 as stranded wires (some are not stranded wires) as shown in FIG. It is composed of a cohesive structure. In the same external cross section, for DC resistance, single wire 1
8 is smaller than the Ritsu line 19. However, for high frequencies, the conductor surface area of the wire 19 is larger than that of the single wire 18, so the resistance becomes smaller based on the skin effect. Therefore, at least the secondary coil 1
0, if this is constituted by the litho wire 19, the efficiency during lighting can be improved for the above-mentioned reason. By using the Ritsu wire in this way, the oscillation transformer 4 can be made smaller.
以上詳述したようにこの考案によれば、高周波
インバータを用いて放電灯を点灯するに際し、放
電灯を直流予熱するために発振トランスの２次コ
イルを利用するときでも発振トランスを偏磁させ
ることはないとともに、予熱電流の抑制に２次コ
イルの抵抗分を利用するようにしているので、抑
制用の直流抵抗として、抵抗値の小さいもので足
り、或いはこれを省略することもでき、それだけ
小型かつ安価に製作できるとともに点灯中におけ
る効率の向上も期待できるといつた効果を奏す
る。 As detailed above, according to this invention, when lighting a discharge lamp using a high-frequency inverter, it is possible to bias the oscillation transformer even when using the secondary coil of the oscillation transformer to preheat the discharge lamp with direct current. In addition, since the resistance of the secondary coil is used to suppress the preheating current, a DC resistor with a small resistance value is sufficient as the suppressing DC resistor, or it can be omitted, which makes the device more compact. In addition, it can be manufactured at low cost, and it can also be expected to improve efficiency during lighting.
第１図はこの考案の実施例を示す回路図、第２
図は発振トランスの平断面図、第３図は単線の断
面図、第４図はリツツ線の断面図である。
１，１Ａ……電源端子、、２……高周波インバ
ータ、４……発振トランス、７……放電灯、９，
１０……２次コイル、１１……スイツチ素子、１
２……抵抗、１７，１８……フイラメント、１９
……リツツ線。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a circuit diagram showing an embodiment of this invention.
The figure is a plan sectional view of the oscillation transformer, FIG. 3 is a sectional view of a single wire, and FIG. 4 is a sectional view of a wire. 1,1A...Power terminal, 2...High frequency inverter, 4...Oscillation transformer, 7...Discharge lamp, 9,
10...Secondary coil, 11...Switch element, 1
2...Resistance, 17, 18...Filament, 19
...Ritutsu line.
Claims (1)
る高周波インバータの発振トランスに、第１及
び第２の２次コイルを設け、前記第１の２次コ
イルを前記放電灯にまたがつて、その誘起電圧
によつて前記放電灯を始動点灯させるように接
続し、又前記第２の２次コイルを、直流電源の
一方の端子から、前記放電灯の両フイラメン
ト、前記第１の２次コイル及び前記放電灯の点
灯中はオフとされるスイツ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挿入す
るとともに、前記直列回路に、前記放電灯の予
熱時前記直流電源からの直流電流が流れると
き、この直流電流が前記両２次コイルに逆方向
に流れるように前記直列回路に前記両２次コイ
ルを接続し、更に前記第１の２次コイルを前記
第２の２次コイルより線径の太い電線で構成し
てなる放電灯点灯装置。 (2) 第１の２次コイルが少くともリツツ線である
実用新案登録請求の範囲第１項記載の放電灯点
灯装置。[Claims for Utility Model Registration] (1) An oscillation transformer of a high-frequency inverter that generates high-frequency output for starting and lighting a discharge lamp is provided with first and second secondary coils, and the first secondary coil is connected to the first secondary coil. The second secondary coil is connected across the discharge lamp so that the discharge lamp is started and lit by its induced voltage, and the second secondary coil is connected to both filaments of the discharge lamp from one terminal of the DC power supply. It is inserted into a series circuit that connects the first secondary coil and the other terminal of the DC power supply via a switch element that is turned off while the discharge lamp is lit, and a preheating circuit for the discharge lamp is inserted into the series circuit. When a DC current from the DC power source flows, both secondary coils are connected to the series circuit so that this DC current flows in the opposite direction to both secondary coils, and the first secondary coil is further connected to the series circuit. A discharge lamp lighting device comprising an electric wire having a wire diameter larger than that of the second secondary coil. (2) The discharge lamp lighting device according to claim 1, wherein the first secondary coil is at least a littsu wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530283U JPS59170998U (en) | 1983-04-30 | 1983-04-30 | discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530283U JPS59170998U (en) | 1983-04-30 | 1983-04-30 | discharge lamp lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59170998U JPS59170998U (en) | 1984-11-15 |
| JPH037915Y2 true JPH037915Y2 (en) | 1991-02-27 |
Family
ID=30195497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6530283U Granted JPS59170998U (en) | 1983-04-30 | 1983-04-30 | discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59170998U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5310952B2 (en) * | 2010-08-06 | 2013-10-09 | 三菱電機株式会社 | Reactor |
-
1983
- 1983-04-30 JP JP6530283U patent/JPS59170998U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59170998U (en) | 1984-11-15 |
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