JPS6148239B2 - - Google Patents

Info

Publication number
JPS6148239B2
JPS6148239B2 JP53010026A JP1002678A JPS6148239B2 JP S6148239 B2 JPS6148239 B2 JP S6148239B2 JP 53010026 A JP53010026 A JP 53010026A JP 1002678 A JP1002678 A JP 1002678A JP S6148239 B2 JPS6148239 B2 JP S6148239B2
Authority
JP
Japan
Prior art keywords
discharge lamp
voltage
switching element
circuit
pulse transformer
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
Application number
JP53010026A
Other languages
Japanese (ja)
Other versions
JPS54103279A (en
Inventor
Takahiro Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Life Solutions Ikeda Electric Co Ltd
Original Assignee
Ikeda Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ikeda Electric Co Ltd filed Critical Ikeda Electric Co Ltd
Priority to JP1002678A priority Critical patent/JPS54103279A/en
Publication of JPS54103279A publication Critical patent/JPS54103279A/en
Publication of JPS6148239B2 publication Critical patent/JPS6148239B2/ja
Granted legal-status Critical Current

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  • Circuit Arrangements For Discharge Lamps (AREA)

Description

【発明の詳細な説明】 この発明は、例えば、シリコン、シンメトリカ
ルスイツチ(3S素子)等のスイツチング素子1
を用いた放電灯始動装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides a switching element 1 such as silicon, symmetrical switch (3S element), etc.
This invention relates to a discharge lamp starting device using a discharge lamp starting device.

従来のスイツチング素子を用いた放電灯始動装
置は、第1図に示す様にスイツチング素子1と、
並列に充放電用コンデンサー2と、パルストラン
ス3の1次巻線との直列回路を接続した並列回路
にパルストランス3の2次巻線5を直列に接続し
て放電灯始動回路Aを構成し、安定器6を介して
電源7に接続した放電灯8の両端に、上記放電灯
始動回路A′を並列に接続する様になつていたの
である。
A conventional discharge lamp starting device using a switching element includes a switching element 1, as shown in FIG.
A discharge lamp starting circuit A is constructed by connecting a secondary winding 5 of a pulse transformer 3 in series to a parallel circuit in which a series circuit of a charging/discharging capacitor 2 and a primary winding of a pulse transformer 3 is connected in parallel. The discharge lamp starting circuit A' was connected in parallel to both ends of the discharge lamp 8, which was connected to a power source 7 via a ballast 6.

従つて、電源電圧Eが安定器6を介して放電灯
の始動回路Aに加印され、第3図に示す様にスイ
ツチング素子1に加わる電圧の瞬時値がスイツチ
ング素子1の破壊電圧Vbo1に達するとスイツチ
ング素子1は点弧導通して、充放電用コンデンサ
ー2に蓄積された電荷がスイツチング素子1及び
パルストランス3の1次巻線4を通じて放電し、
2次巻線5に高圧パルスを誘起し、点弧導通して
短絡状態にあるスイツチング素子1を通じて放電
灯8に高圧パルスを印加して、放電灯8に始動点
灯を促すのである。
Therefore, the power supply voltage E is applied to the starting circuit A of the discharge lamp via the ballast 6, and the instantaneous value of the voltage applied to the switching element 1 becomes the breakdown voltage Vbo 1 of the switching element 1, as shown in FIG. When reaching the switching element 1, the switching element 1 becomes ignited and conducts, and the charge accumulated in the charging/discharging capacitor 2 is discharged through the switching element 1 and the primary winding 4 of the pulse transformer 3.
A high-voltage pulse is induced in the secondary winding 5, and the high-voltage pulse is applied to the discharge lamp 8 through the switching element 1, which is in a short-circuited state due to ignition conduction, to urge the discharge lamp 8 to start and light.

パルストランス3の2次巻線5に発生する高圧
パルスは、電源電圧の半サイクル毎に誘起され様
とするのであるが、放電灯の点灯後点灯を継続す
るためには高圧パルスの発生を継続することは必
要でなく、却つて回路に悪影響を及ぼすので、放
電灯点灯後は高圧パルスの発生を停止させること
が望ましいのである。
The high-voltage pulse generated in the secondary winding 5 of the pulse transformer 3 tends to be induced every half cycle of the power supply voltage, but in order to continue lighting the discharge lamp after it has been lit, the high-voltage pulse must continue to be generated. It is not necessary to do so, and on the contrary, it will have a negative effect on the circuit, so it is desirable to stop the generation of high-voltage pulses after the discharge lamp is turned on.

放電灯8の点灯後、パルストランス3の2次巻
線5に高圧パルスの発生を停止させるためには、
V1<Vbo1<Voなる条件(但しVoは電源電圧Eの
波高値、Vbo1はスイツチング素子1の破壊電
圧、V1は放電灯管電圧E1の尖頭値)を満たすこ
とを必要とするのであるが、上述の従来の方式に
於ては充放電用コンデンサー2が放電灯8と並列
な交流回路に接続されていて、放電灯点灯後の放
電灯管電圧E1に充放電用コンデンサー2が充電
されることに依る影響を及ぼして、第3図に点線
で示す放電灯始動回路Aが無い場合の放電灯管電
圧E2より波形が急峻でなくなつて、尖頭値V1
高くなり、上記条件を満たすためのスイツチング
素子1の撰択範囲が狭められる欠点があつたので
ある。
In order to stop generating high voltage pulses in the secondary winding 5 of the pulse transformer 3 after lighting the discharge lamp 8,
It is necessary to satisfy the following condition: V 1 < Vbo 1 < Vo (where Vo is the peak value of the power supply voltage E, Vbo 1 is the breakdown voltage of the switching element 1, and V 1 is the peak value of the discharge lamp tube voltage E 1 ). However, in the conventional method described above, the charging/discharging capacitor 2 is connected to an AC circuit in parallel with the discharge lamp 8, and the charging/discharging capacitor 2 is connected to the discharge lamp tube voltage E1 after the discharge lamp is lit. 2 is charged, the waveform becomes less steep than the discharge lamp voltage E 2 without the discharge lamp starting circuit A shown by the dotted line in FIG. 3, and the peak value V 1 increases. This has the disadvantage that the selection range of the switching element 1 to satisfy the above conditions is narrowed.

この発明は従来の放電灯始動装置に於ける上述
の欠点を除いて高圧パルス発生用の充放電用コン
デンサー2を放電灯8と並列な交流回路に挿入し
ない方式の放電灯始動装置を得て、充放電用コン
デンサー2の影響が放電灯管電圧E1に可及的に
表われない様にして、スイツチング素子1の撰択
範囲を広く出来る様にすることを目的とするもの
である。
The present invention eliminates the above-mentioned drawbacks of the conventional discharge lamp starting device and provides a discharge lamp starting device in which the charging/discharging capacitor 2 for generating high-voltage pulses is not inserted into the AC circuit parallel to the discharge lamp 8. The purpose of this embodiment is to prevent the influence of the charging/discharging capacitor 2 from appearing on the discharge lamp tube voltage E1 as much as possible, thereby widening the selection range of the switching element 1.

この発明を図面に示す実施例に付いて説明する
と、第2図に示す様に電源7に安定器6を介して
放電灯8を接続し、放電灯8の両端に、並列に全
波整流器9の交流入力端子とパルストランス3の
2次巻線5との直列回路を接続し、全波整流器9
の直流出力端子間にスイツチング素子1とスイツ
チング素子1と並列に充放電用コンデンサー2と
パルストランス3の1次巻線4との直列回路を接
続したものである。
To explain this invention with reference to the embodiment shown in the drawings, as shown in FIG. A series circuit of the AC input terminal of the pulse transformer 3 and the secondary winding 5 of the pulse transformer 3 is connected, and a full-wave rectifier 9 is connected.
A series circuit consisting of a switching element 1, a charging/discharging capacitor 2, and a primary winding 4 of a pulse transformer 3 is connected in parallel to the switching element 1 between the DC output terminals of the switching element 1.

放電灯始動装置Aをこの様な構成にすると、第
4図に示す様に電源電圧Eが全波整流器9の交流
入力端子に印加されると、全波整流器9の直流出
力端子間には電源電圧が整流されて表われ、この
電圧がスイツチング素子1の破壊電圧Vbo1に達
するとスイツチング素子1は第4図に示す時点t1
に於て導通し、充放電用コンデンサー2に蓄積さ
れた電荷がパルストランス3の1次巻線4を通じ
て放電して、パルストランス3の2次巻線5に高
圧パルスを誘起し導通状態にあるスイツチング素
子1及び全波整流器9の交流入力端子を通じて放
電灯8に印加されて放電灯8は点灯を促がされ
て、点灯し易い状態になり、充放電用コンデンサ
ー2は蓄積した電荷を放電し、スイツチング素子
1は時点t2に於てターンオフして、再び両端に破
壊電圧Vbo1が加印されようとするが、放電灯8
が既に点灯し易い状態になつているので、スイツ
チング素子1に加わる電圧、即ち、放電灯管電圧
がスイツチング素子1の破壊電圧Vbo1に達しな
い以前の電圧E3の時点t3に於て放電灯8は始動点
灯し、次に、電源電圧の電圧波形が高くなつて放
電灯8が再点弧する時点t4に於て、コンデンサー
2は既に電圧V3迄充電されていて充放電コンデ
ンサー2を充電するための電流がほとんど無く、
管電圧は急峻になつて、再点弧時の尖頭値V4
先の充電電圧V3よりあまり高くならず、充放電
コンデンサー2の両端子間電圧は、放電灯点灯中
変化することなく、放電灯始動装置を取付けない
場合の点灯中の放電灯管電圧の尖頭値V2と大差
を生じないのである。
When the discharge lamp starting device A is configured in this way, when the power supply voltage E is applied to the AC input terminal of the full-wave rectifier 9 as shown in FIG. When the voltage is rectified and reaches the breakdown voltage Vbo 1 of the switching element 1, the switching element 1 reaches the point t 1 shown in FIG.
The electric charge accumulated in the charging/discharging capacitor 2 is discharged through the primary winding 4 of the pulse transformer 3, and a high voltage pulse is induced in the secondary winding 5 of the pulse transformer 3, resulting in a conductive state. The voltage is applied to the discharge lamp 8 through the AC input terminal of the switching element 1 and the full-wave rectifier 9, and the discharge lamp 8 is urged to light up and is in a state where it is easy to light up, and the charging/discharging capacitor 2 discharges the accumulated charge. , the switching element 1 is turned off at time t 2 and the breakdown voltage Vbo 1 is about to be applied across the discharge lamp 8 again.
is already in a state where it is easy to light up, so that the voltage applied to the switching element 1, that is, the discharge lamp tube voltage does not reach the breakdown voltage Vbo 1 of the switching element 1 at the time t3 of the voltage E3 . The lamp 8 is started and turned on, and then, at time t 4 when the voltage waveform of the power supply voltage becomes high and the discharge lamp 8 is lit again, the capacitor 2 has already been charged to the voltage V 3 and the charging/discharging capacitor 2 There is almost no current to charge the
The tube voltage becomes steep, and the peak value V4 at the time of restriking is not much higher than the previous charging voltage V3 , and the voltage between both terminals of the charging/discharging capacitor 2 does not change while the discharge lamp is lit. , there is not much difference from the peak value V 2 of the discharge lamp tube voltage during lighting when the discharge lamp starting device is not installed.

この発明は全波整流器9の直流端子間にスイツ
チング素子1を接続して、スイツチング素子1に
は一方向の電流のみが流れる様になつているので
スイツチング素子1にシリコンシンメリカルスイ
ツチ(3S素子)の外に第5図に示すサイリスタ
ー10のアノードと、ゲートとをツエナーダイオ
ード11で、ツエナーダイオード11のアノード
をゲート側にして接続した方式の素子を使用して
実施出来るのである。
In this invention, the switching element 1 is connected between the DC terminals of the full-wave rectifier 9 so that only one direction of current flows through the switching element 1. Therefore, the switching element 1 is connected to a silicon symmetrical switch (3S element). In addition to this, it is also possible to use an element in which the anode and gate of the thyristor 10 shown in FIG. 5 are connected with a Zener diode 11, with the anode of the Zener diode 11 facing the gate side.

又この発明は第6図、第7図に示す従前例の様
に、パルストランス3の1次巻線回路又は2次巻
線回路に抵抗12とコンデンサー13よりなる高
圧パルスの電圧低減回路を接続して実施出来るこ
とは第8図,第9図の回路図に示す通りである。
In addition, this invention connects a high-voltage pulse voltage reduction circuit consisting of a resistor 12 and a capacitor 13 to the primary winding circuit or secondary winding circuit of the pulse transformer 3, as in the conventional example shown in FIGS. 6 and 7. What can be implemented is as shown in the circuit diagrams of FIGS. 8 and 9.

この発明の放電灯始動装置Aは上述の様に安定
器を介して電源に接続した放電灯8の両端に並列
に全波整流器9の交流入力端子とパルストランス
3の2次巻線5との直列回路を接続し、全波整流
器9の直流出力端子にスイツチング素子1と、パ
ルストランス3の1次巻線4と、充放電用コンデ
ンサー2との直列回路とを並列に接続した構成が
採用されているので、充放電用コンデンサー2が
点灯中の放電灯管電圧E1に作用することが少な
くなつて放電灯管電圧E1が高められることが無
くなり放電灯8点灯後に、放電灯始動回路Aに高
圧パルスが発生することを停止させるための上述
の条件、V2<Vbo1<Voを満たすためのVbo1の範
囲が広くなつて、スイツチング素子1の撰択範囲
を広くすることが出来る効果があるのである。
As described above, the discharge lamp starting device A of the present invention connects the AC input terminal of the full-wave rectifier 9 and the secondary winding 5 of the pulse transformer 3 in parallel to both ends of the discharge lamp 8 connected to the power supply via the ballast. A configuration is adopted in which a series circuit is connected, and a series circuit including the switching element 1, the primary winding 4 of the pulse transformer 3, and the charging/discharging capacitor 2 is connected in parallel to the DC output terminal of the full-wave rectifier 9. As a result, the charging/discharging capacitor 2 acts less on the discharge lamp tube voltage E 1 during lighting, and the discharge lamp tube voltage E 1 is no longer increased. After the discharge lamp 8 is lit, the discharge lamp starting circuit A The range of Vbo 1 that satisfies the above-mentioned condition for stopping the generation of high-voltage pulses, V 2 < Vbo 1 < Vo, is widened, and the selection range of the switching element 1 can be widened. There is.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の放電灯始動装置の基本回路図、
第2図はこの発明の第1図の基本回路に適用した
回路図、第3図は第1図に示す従来の放電灯始動
回路に於ける電源電圧と放電灯始動装置を使用し
た場合の放電灯管電圧及び放電灯始動装置を取外
した場合の放電灯管電圧の関係を示す線示図、第
4図は第2図に示すこの発明の放電灯始動装置を
用いた場合の電源電圧と放電灯管電圧、即ちスイ
ツチング素子の端子間電圧との関係を示す線示
図、第5図はサイリスターを使用したスイツチン
グ素子を示す配線図、第6図、第7図は、第1図
の基本回路を変形した従来から行なわれた放電灯
始動回路の回路図、第8図、第9図は第6図及び
第7図の回路にこの発明を適用した回路図であ
る。 図中、1……スイツチング素子、2……充放電
用コンデンサー、3……パルストランス、4……
パルストランスの1次巻線、5……パルストラン
スの2次巻線、6……安定器、7……電源、8…
…放電灯、9……全波整流器。
Figure 1 is a basic circuit diagram of a conventional discharge lamp starting device.
Fig. 2 is a circuit diagram applied to the basic circuit of Fig. 1 according to the present invention, and Fig. 3 shows the power supply voltage in the conventional discharge lamp starting circuit shown in Fig. 1 and the discharge when using the discharge lamp starting device. A line diagram showing the relationship between the lamp tube voltage and the discharge lamp tube voltage when the discharge lamp starting device is removed, and FIG. 4 shows the power supply voltage and discharge when the discharge lamp starting device of the present invention shown in FIG. 2 is used. A line diagram showing the relationship between the lamp tube voltage, that is, the voltage between the terminals of the switching element. Figure 5 is a wiring diagram showing a switching element using a thyristor. Figures 6 and 7 are the basic circuit of Figure 1. FIGS. 8 and 9 are circuit diagrams of a conventional discharge lamp starting circuit which is a modified version of the conventional discharge lamp starting circuit, and are circuit diagrams in which the present invention is applied to the circuits shown in FIGS. In the figure, 1... switching element, 2... charging/discharging capacitor, 3... pulse transformer, 4...
Primary winding of pulse transformer, 5... Secondary winding of pulse transformer, 6... Ballast, 7... Power supply, 8...
...Discharge lamp, 9...Full wave rectifier.

Claims (1)

【特許請求の範囲】[Claims] 1 安定器6を介して電源7に接続した放電灯8
に、並列関係に全波整流器9の交流入力端子とパ
ルストランス3の2次巻線5との直列回路を接続
し、全波整流器9の直流出力端子間に並列関係に
スイツチング素子1と、充放電コンデンサー2と
パルストランス3の一次巻線4との直列回路とを
接続した放電灯始動装置。
1 Discharge lamp 8 connected to power supply 7 via ballast 6
A series circuit of the AC input terminal of the full-wave rectifier 9 and the secondary winding 5 of the pulse transformer 3 is connected in parallel, and the switching element 1 and the charging circuit are connected in parallel between the DC output terminals of the full-wave rectifier 9. A discharge lamp starting device which connects a series circuit of a discharge capacitor 2 and a primary winding 4 of a pulse transformer 3.
JP1002678A 1978-01-31 1978-01-31 Device for starting discharge lamp Granted JPS54103279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1002678A JPS54103279A (en) 1978-01-31 1978-01-31 Device for starting discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1002678A JPS54103279A (en) 1978-01-31 1978-01-31 Device for starting discharge lamp

Publications (2)

Publication Number Publication Date
JPS54103279A JPS54103279A (en) 1979-08-14
JPS6148239B2 true JPS6148239B2 (en) 1986-10-23

Family

ID=11738877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1002678A Granted JPS54103279A (en) 1978-01-31 1978-01-31 Device for starting discharge lamp

Country Status (1)

Country Link
JP (1) JPS54103279A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5998499A (en) * 1982-11-29 1984-06-06 東芝ライテック株式会社 Device for firing discharge lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941779A (en) * 1972-05-03 1974-04-19
JPS5246680A (en) * 1975-10-09 1977-04-13 Toshiro Watanabe Moulding material obtained by treatment of refuse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941779A (en) * 1972-05-03 1974-04-19
JPS5246680A (en) * 1975-10-09 1977-04-13 Toshiro Watanabe Moulding material obtained by treatment of refuse

Also Published As

Publication number Publication date
JPS54103279A (en) 1979-08-14

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