JPS6110957B2 - - Google Patents
Info
- Publication number
- JPS6110957B2 JPS6110957B2 JP11172277A JP11172277A JPS6110957B2 JP S6110957 B2 JPS6110957 B2 JP S6110957B2 JP 11172277 A JP11172277 A JP 11172277A JP 11172277 A JP11172277 A JP 11172277A JP S6110957 B2 JPS6110957 B2 JP S6110957B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- tap
- reactance element
- winding
- output
- 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
- 238000004804 winding Methods 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 241001197925 Theila Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
【発明の詳細な説明】
本発明は、1次側に切換タツプ4,5,6を設
けて、第1の2次出力タツプt1と接地0との間に
リアクタンス要素2を介して接続する放電灯1の
定格に応じた2次出力電圧が第1の2次出力タツ
プt1に出力するようにするとともに、電源を接続
する切換タツプ4,5,6の巻数が多くなる程、
得られる出力電圧が低くなる第2の2次出力タツ
プt2を2次側に設けてこの第2の2次出力タツプ
t2と接地0との間に力率改善用の進相コンデンサ
3を接続した変圧器7を具備して成ることを特徴
とする放電灯点灯装置に係り、その目的とすると
ころは、各種の放電灯を点灯することができ且つ
各々の放電灯の場合にあつても入力の総合力率を
高力率とすることができる放電灯点灯装置を提供
するにある。DETAILED DESCRIPTION OF THE INVENTION The present invention provides switching taps 4, 5, and 6 on the primary side and connects them between the first secondary output tap t1 and ground 0 via a reactance element 2. The secondary output voltage corresponding to the rating of the discharge lamp 1 is outputted to the first secondary output tap t1 , and as the number of turns of the switching taps 4, 5, and 6 to which the power source is connected increases,
A second secondary output tap t2, which provides a lower output voltage, is provided on the secondary side.
A discharge lamp lighting device is characterized in that it is equipped with a transformer 7 having a phase advance capacitor 3 connected between it and ground 0 for power factor improvement, and its purpose is to An object of the present invention is to provide a discharge lamp lighting device capable of lighting a discharge lamp and making the total input power factor high even in the case of each discharge lamp.
各種の放電灯を接続することができる従来の放
電灯点灯装置は、例えば第1図のように放電灯1
に直列にチヨークコイルからなるリアクタンス要
素2を接続するとともに並列的に力率改善用の進
相コンデンサ3を接続して点灯回路を構成すると
ともに、各種の放電灯1を点灯することができる
ように、リアクタンス要素2に切換タツプ4,
5,6を設け、接続する放電灯1に合せて適当に
切換えていた。しかしかかる従来例では力率改善
用コンデンサ3は常に一定の進相電流が流れるた
め放電灯1に流れる定格ランプ電流(遅相電流)
が小さいときには総合の入力力率が高力率になら
ないという欠点があつた。 A conventional discharge lamp lighting device to which various discharge lamps can be connected is, for example, a discharge lamp 1 as shown in FIG.
A reactance element 2 consisting of a chiyoke coil is connected in series with the reactance element 2, and a phase advancing capacitor 3 for power factor improvement is connected in parallel to constitute a lighting circuit, and various discharge lamps 1 can be lit. Switch tap 4 to reactance element 2,
5 and 6, and were appropriately switched according to the discharge lamp 1 to be connected. However, in such a conventional example, since a constant leading phase current always flows through the power factor correction capacitor 3, the rated lamp current (lagging phase current) flowing through the discharge lamp 1
The drawback was that when the input power factor was small, the overall input power factor did not reach a high power factor.
本発明は上述の欠点に鑑みて提供したもので、
以下実施例回路によつて説明する。第2図は一実
施例を示し、図中7はオート型の変圧器であつ
て、1次側の入力巻線の中間には電源切り換え用
タツプ4,5を設け、該入力巻線の両端、つまり
接地側共通端0と、タツプ6とで第1の電源入力
端子を構成し、更に接地側共通端0と、電源切り
換え用タツプ4又は5とで第2の電源入力端子を
鹸成している。また2次側の出力巻線の中間には
2次出力タツプt1を設け、該2次出力タツプt1
と、出力巻線の一端を構成する接地側共通端0と
の間で放電灯1とチヨークコイルのようなリアク
タンス要素2との直列回路を接続し、また出力巻
線の両端、つまり接地側共通端0とタツプt2との
間にリアクタンス要素2とは通電電流が逆相とな
る第2のリアクタンス要素である力率改善用のコ
ンデンサ3を接続してある。 The present invention has been provided in view of the above-mentioned drawbacks.
This will be explained below using an example circuit. FIG. 2 shows one embodiment, and 7 in the figure is an auto-type transformer, with power supply switching taps 4 and 5 provided between the input winding on the primary side, and both ends of the input winding. In other words, the ground side common terminal 0 and the tap 6 constitute a first power input terminal, and the ground side common terminal 0 and the power supply switching tap 4 or 5 constitute a second power input terminal. ing. In addition, a secondary output tap t 1 is provided in the middle of the output winding on the secondary side, and the secondary output tap t 1
A series circuit of a discharge lamp 1 and a reactance element 2 such as a chiyoke coil is connected between the terminal 0 and the common end 0 on the ground side, which constitutes one end of the output winding, and the common terminal 0 on the ground side constituting one end of the output winding. A capacitor 3 for power factor correction, which is a second reactance element whose current is in opposite phase to that of the reactance element 2 , is connected between the tap t2 and the tap t2.
今、第2図において放電灯1に流れるランプ電
流Ilaが変つたとき、放電灯1に印加される電圧
をV2とすると、V2−Ilaの特性は第3図のような
曲線イ,ロ,ハで示される。ここで、或る定格の
放電灯1が接続されているとし、そのときの変圧
器7の1次側のタツプは切換タツプ4を使用した
とすると、接地側共通端0と電源切り換え用タツ
プ4間に定格電圧を印加すれば、例えばV2−Ila
曲線がイ曲線として得られると仮定する。しかし
て放電灯1が点灯する前には放電灯1にはランプ
電流Ila1が流れないためV21という電圧が放電灯
1に印加され、放電灯1は点灯することになる。
この放電灯1は点灯後チヨークコイルたるリアク
タンス要素2との関係で第3図の点O1で安定点
灯動作する。この点O1のランプ電流Ila1と、ラン
プ電圧Vla1が定格ランプ出力=Ila1・Vla1・cos
la1(cosla1はランブ力率を示す)を与える定格
ランプ電流、定格ランプ電圧となる。このとき一
方入力電圧が昇圧されてコンデンサ3に印加され
るため、大きな進み電流が流れて、総合の入力力
率は高力率となる。次に放電灯1が別の種類の定
格のものに変つたときは接続するタツプを5又は
6に変更するが、例えばタツプ6を用い、入力巻
線の両端、つまり接地側共通端0とタツプ6間に
定格電圧が印加されたとすると、放電灯1とリア
クタンス要素2は直列回路に印加する第1の2次
出力タツプt1の電圧はステツプダウンして、V2−
Ila特性は例えば第3図の曲線ハのようになる。
即ち放電灯1が点灯する前はV23という電圧が放
電灯1に印加されて放電灯1は点灯し、リアクタ
ンス要素2と放電灯1の関係で、点O3で安定点
灯動作する。このときのランプ電流Ila3、ランプ
電圧Vla3が、そのときの定格ランプ電流、定格ラ
ンプ電圧となるように変圧器7の切換タツプ6が
決定しておくと、Vla3・Ila3・cosla3によつて
与えられる出力が放電灯1に与えられる。このと
きのランプ電流Ila3はランプ電流Ila1より小さい
ため入力の総合力率を高力率とするためには、コ
ンデンサ3に流れる電流を前のときより減少させ
る必要があるが、入力巻線の一端であるタツプ6
を使用しているので、出力巻線の一端であるタツ
プt2との巻数比が1となつて、コンデンサ3には
定格入力電圧が印加されているにすぎず、進み電
流は減少し、入力力率を高力率に保つことができ
るのである。 Now, when the lamp current Ila flowing through the discharge lamp 1 in Fig. 2 changes and the voltage applied to the discharge lamp 1 is V 2 , the characteristics of V 2 - Ila will be as shown in the curves A and R as shown in Fig. 3. , C is shown. Here, if a discharge lamp 1 of a certain rating is connected, and if the switching tap 4 is used as the primary side tap of the transformer 7 at that time, the ground side common terminal 0 and the power switching tap 4 are connected. For example, if the rated voltage is applied between
Assume that the curve is obtained as an A curve. However, before the discharge lamp 1 is lit, the lamp current Ila 1 does not flow through the discharge lamp 1, so a voltage of V 21 is applied to the discharge lamp 1, and the discharge lamp 1 is lit.
After lighting, the discharge lamp 1 operates stably at point O1 in FIG. 3 due to the relationship with the reactance element 2, which is a chiyoke coil. The lamp current Ila 1 at this point O 1 and the lamp voltage Vla 1 are the rated lamp output = Ila 1・Vla 1・cos
The rated lamp current and voltage are the rated lamp current and voltage that give la 1 (cosla 1 indicates the lamp power factor). At this time, one input voltage is boosted and applied to the capacitor 3, so a large lead current flows, resulting in a high overall input power factor. Next, when the discharge lamp 1 is changed to one with a different type of rating, change the connection tap to 5 or 6. For example, use tap 6 to connect both ends of the input winding, that is, the common end 0 on the ground side. Assuming that the rated voltage is applied between the discharge lamp 1 and the reactance element 2, the voltage at the first secondary output tap t1 , which is applied to the series circuit between the discharge lamp 1 and the reactance element 2, is stepped down to V2 -
The Ila characteristic is, for example, as shown in curve C in Fig. 3.
That is, before the discharge lamp 1 is lit, a voltage of V23 is applied to the discharge lamp 1, and the discharge lamp 1 is lit, and due to the relationship between the reactance element 2 and the discharge lamp 1, stable lighting operation is performed at point O3 . If the switching tap 6 of the transformer 7 is set so that the lamp current Ila 3 and lamp voltage Vla 3 at this time become the rated lamp current and rated lamp voltage at that time, Vla 3・Ila 3・cosla 3 The output given by is given to the discharge lamp 1. Since the lamp current Ila 3 at this time is smaller than the lamp current Ila 1 , in order to make the total input power factor a high power factor, it is necessary to reduce the current flowing through the capacitor 3 compared to the previous case, but the input winding Tap 6, which is one end of
Since the turn ratio with tap t 2 , which is one end of the output winding, is 1, the rated input voltage is only applied to the capacitor 3, the lead current decreases, and the input This allows the power factor to be maintained at a high power factor.
第4図は本発明の別の実施例を示し、かかる実
施例は始動補助装置8を具有している。即ち、変
圧器7の入力巻線の一端であるタツプ6を用いる
と第3図のように放電灯1が点灯する前に放電灯
に印加される電圧はV23のように低くなつて始動
しにくい場合がある。そのために始動補助装置8
を構成する小容量のコンデンサを出力巻線の一端
であるタツプt2と、放電灯1とリアクタンス要素
2の接続点との間に挿入して始動を補償してい
る。勿論コンデンサのかわりに抵抗を用いたり、
電子回路を用いたりした始動補助装置8を使用し
ても勿論よい。第5図は本発明の他の実施例を示
し、変圧器とリアクタンス要素とを一体化した所
謂リーケージトランスからなる変圧器7を用いて
ある。勿論放電灯1として予熱形の放電灯を用い
てもよい。 FIG. 4 shows another embodiment of the invention, which embodiment includes a starting aid 8. As shown in FIG. That is, when the tap 6, which is one end of the input winding of the transformer 7, is used, the voltage applied to the discharge lamp becomes as low as V 23 before the discharge lamp 1 lights up, as shown in Fig. 3, and starts. It may be difficult. For this purpose, starting aid device 8
A small capacitor constituting the capacitor is inserted between the tap t2 , which is one end of the output winding, and the connection point between the discharge lamp 1 and the reactance element 2 to compensate for starting. Of course, you can use a resistor instead of a capacitor,
Of course, a starting assist device 8 using an electronic circuit may also be used. FIG. 5 shows another embodiment of the present invention, in which a transformer 7 consisting of a so-called leakage transformer in which a transformer and a reactance element are integrated is used. Of course, a preheating type discharge lamp may be used as the discharge lamp 1.
本発明は入力巻線の中間に電源切り換え用タツ
プを設け、入力巻線の両端を第1の電源入力端子
とし、入力巻線の一端と電源切り換え用タツプと
を第2の電源入力端子とするとともに、出力巻線
の中間に出力タツプを設けた変圧器と、出力巻線
の一端と出力タツプとの間に接続された第1のリ
アクタンス要素及び放電灯負荷の直列回路と、出
力巻線の両端に接続され、第1のリアクタンス要
素とは通電電流が逆位相となる第2のリアクタン
ス要素とを具備し、放電灯負荷がランプ電流の小
さいものの場合には第1の電源入力端子に、放電
灯負荷がランプ電流の大きいものの場合には第2
の電源入力端子に、交流電源を各々選択的に接続
してあるので、放電灯の種類に応じて電源を接続
する入力巻線側のタツプを変えるだけで、放電灯
を点灯できるものであつて、各種の放電灯に対応
でき、装置の多品種化がなくなり、在庫管理が楽
であり、その上出力巻線の一端と出力タツプとの
間に接続された第1のリアクタンス要素及び放電
灯負荷の直列回路と、出力巻線の両端に接続さ
れ、第1のリアクタンス要素とは通電電流が逆位
相となる第2のリアクタンス要素を具備してある
ので、定格ランプ電流が大きい放電灯、即ち巻数
の少ない電源切り換え用タツプを使用して高い始
動印加電圧を要する放電灯の場合には進み電流を
大きくとれ、逆に定格ランプ電流が小さい放電
灯、即ち巻数の多い切換タツプを使用する低い始
動印加電圧の放電灯の場合には進み電流を小さく
とれ、常に各々の放電灯に応じて入力の総合力率
を高力率に設定できるという効果を奏する。 In the present invention, a power supply switching tap is provided in the middle of the input winding, both ends of the input winding are used as first power input terminals, and one end of the input winding and the power supply switching tap are used as second power supply input terminals. In addition, a series circuit including a transformer having an output tap in the middle of the output winding, a first reactance element and a discharge lamp load connected between one end of the output winding and the output tap, and the output winding. A second reactance element is connected to both ends of the reactance element and has a current flowing in opposite phase to the first reactance element, and when the discharge lamp load has a small lamp current, the discharge lamp is connected to the first power input terminal. If the lamp load has a large lamp current, the second
AC power sources are selectively connected to the power input terminals of the lamp, so the discharge lamp can be lit by simply changing the tap on the input winding side to which the power source is connected depending on the type of discharge lamp. , it is compatible with various discharge lamps, eliminates the need for diversification of devices, and facilitates inventory management.In addition, the first reactance element and discharge lamp load connected between one end of the output winding and the output tap are A series circuit is provided, and a second reactance element is connected to both ends of the output winding, and the energizing current is in opposite phase to the first reactance element. In the case of discharge lamps that require a high starting voltage applied by using a power supply switching tap with a small number of turns, a large lead current can be obtained; conversely, for discharge lamps with a small rated lamp current, in other words, by using a switching tap with a large number of turns, a low starting voltage can be obtained. In the case of voltage discharge lamps, the advance current can be kept small, and the total input power factor can always be set to a high power factor depending on each discharge lamp.
第1図は従来例の回路図、第2図は本発明の一
実施例の回路図、第3図は同上の動作説明図、第
4図は本発明の別の実施例の回路図、第5図は本
発明の他の実施例の回路図であり、0は接地、1
は放電灯、2はリアクタンス要素、3はコンデン
サ、4,5は電源切り換え用タツプ、6はタツ
プ、7は変圧器、t1は2次出力タツプ、t2はタツ
プである。
FIG. 1 is a circuit diagram of a conventional example, FIG. 2 is a circuit diagram of an embodiment of the present invention, FIG. 3 is an explanatory diagram of the same operation as above, FIG. 4 is a circuit diagram of another embodiment of the present invention, Figure 5 is a circuit diagram of another embodiment of the present invention, where 0 is ground, 1
is a discharge lamp, 2 is a reactance element, 3 is a capacitor, 4 and 5 are power supply switching taps, 6 is a tap, 7 is a transformer, t1 is a secondary output tap, and t2 is a tap.
Claims (1)
け、入力巻線の両端を第1の電源入力端子とし、
入力巻線の一端と電源切り換え用タツプとを第2
の電源入力端子とするとともに、出力巻線の中間
に出力タツプを設けた変圧器と、出力巻線の一端
と出力タツプとの間に接続された第1のリアクタ
ンス要素及び放電灯負荷の直列回路と、出力巻線
の両端に接続され、第1のリアクタンス要素とは
通電電流が逆位相となる第2のリアクタンス要素
とを具備し、放電灯負荷がランプ電流の小さいも
のの場合には第1の電源入力端子に、放電灯負荷
がランプ電流の大きいものの場合には第2の電源
入力端子に、交流電源を各々選択的に接続して成
ることを特徴とする放電灯点灯装置。1. Provide a power supply switching tap in the middle of the input winding, use both ends of the input winding as the first power input terminal,
Connect one end of the input winding and the power switch tap to the second
A series circuit of a transformer having a power supply input terminal and an output tap in the middle of the output winding, a first reactance element connected between one end of the output winding and the output tap, and a discharge lamp load. and a second reactance element which is connected to both ends of the output winding and whose energizing current is in opposite phase to the first reactance element, and when the discharge lamp load has a small lamp current, the first reactance element A discharge lamp lighting device characterized in that an AC power source is selectively connected to a second power input terminal when the discharge lamp load has a large lamp current.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11172277A JPS5444367A (en) | 1977-09-14 | 1977-09-14 | Discharge lamp lighting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11172277A JPS5444367A (en) | 1977-09-14 | 1977-09-14 | Discharge lamp lighting apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5444367A JPS5444367A (en) | 1979-04-07 |
JPS6110957B2 true JPS6110957B2 (en) | 1986-04-01 |
Family
ID=14568494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11172277A Granted JPS5444367A (en) | 1977-09-14 | 1977-09-14 | Discharge lamp lighting apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5444367A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01309295A (en) * | 1988-06-07 | 1989-12-13 | Eye Lighting Syst Corp | Discharge lamp lighting device |
-
1977
- 1977-09-14 JP JP11172277A patent/JPS5444367A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5444367A (en) | 1979-04-07 |
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