JPH07235386A - Discharge lamp lighting device - Google Patents
Discharge lamp lighting deviceInfo
- Publication number
- JPH07235386A JPH07235386A JP6025185A JP2518594A JPH07235386A JP H07235386 A JPH07235386 A JP H07235386A JP 6025185 A JP6025185 A JP 6025185A JP 2518594 A JP2518594 A JP 2518594A JP H07235386 A JPH07235386 A JP H07235386A
- Authority
- JP
- Japan
- Prior art keywords
- lighting device
- discharge lamp
- terminals
- inverter
- circuit
- 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.)
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- Circuit Arrangements For Discharge Lamps (AREA)
- Inverter Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、インバ−タ回路を用い
て放電灯を点灯させる放電灯点灯装置に関するものであ
り、さらに詳しくは、多品種の放電灯を適合ランプとす
る放電灯点灯装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device for lighting a discharge lamp using an inverter circuit, and more particularly to a discharge lamp lighting device using a variety of types of discharge lamps as compatible lamps. Regarding
【０００２】[0002]
【従来の技術】この種の第１従来例として、実開平４−
８１４９９号公報があり、その概要図を図７乃至図９に
示し、以下に説明する。2. Description of the Related Art As a first conventional example of this type, an actual Kaihei 4-
Japanese Patent No. 81499 has been disclosed, and its schematic diagram is shown in FIGS. 7 to 9 and will be described below.
【０００３】インバ−タ点灯装置Ａの出力側端子１、２
には、４０Ｗの放電灯ＦＬ４０が接続されており、その
非電源側端子間にはバイパス素子としてコンデンサＣ2
が接続されている。インバ−タ点灯装置Ａ内部には、一
石式のインバ−タ回路Ｂを備えている。インバ−タ点灯
装置Ａの入力端子間には交流電源Ｖacが接続されてい
る。交流電源Ｖacは整流器Ｄ．Ｂ．により全波整流さ
れ、平滑用コンデンサＣHにより平滑されて直流電圧に
変換される。この直流電圧は、トランジスタＴｒ1を介
してインダクタＬ3 とコンデンサＣ1 の並列共振回路に
印加される。トランジスタＴｒ1 は制御回路Ｘにより高
周波スイッチングされる。インダクタＬ3 とコンデンサ
Ｃ1 の並列共振回路には高周波の共振電圧が発生する。
この共振電圧は限流インダクタＬ1 を介してインバ−タ
点灯装置Ａの出力側端子１、２に出力される。Output side terminals 1 and 2 of the inverter lighting device A
Is connected to a 40 W discharge lamp FL40, and a capacitor C 2 is connected as a bypass element between the non-power supply side terminals.
Are connected. Inside the inverter lighting device A, a single-stone inverter circuit B is provided. An AC power supply V ac is connected between the input terminals of the inverter lighting device A. The AC power supply V ac is a rectifier D. B. Is subjected to full-wave rectification, smoothed by the smoothing capacitor C H, and converted into a DC voltage. This DC voltage is applied to the parallel resonant circuit of the inductor L 3 and the capacitor C 1 via the transistor Tr 1 . The transistor Tr 1 is high-frequency switched by the control circuit X. A high-frequency resonance voltage is generated in the parallel resonance circuit of the inductor L 3 and the capacitor C 1 .
This resonance voltage is output to the output side terminals 1 and 2 of the inverter lighting device A via the current limiting inductor L 1 .
【０００４】この装置を例えば図８に示す様なショ−ケ
−ス用や、看板灯用などの他品種の放電灯を適合ランプ
とする放電灯点灯装置に利用すると、図９に示す様に個
々の放電灯に対して１つずつインバ−タ点灯装置Ａが必
要となり、装置が大型化するという問題があった。When this device is used in a discharge lamp lighting device using a discharge lamp of another type such as a showcase or a signboard lamp as shown in FIG. 8 as a compatible lamp, as shown in FIG. There is a problem that the inverter lighting device A is required for each of the discharge lamps, and the device becomes large.
【０００５】この問題に対して、例えば図１０及び図１
１に示す様な回路を用いて対応する第２従来例が考えら
れる。図１０に示す回路は交流電源Ｖacの両端にインバ
−タ点灯装置Ａを接続し、放電灯ＦＬ４０とインダクタ
Ｌ12とインダクタＬ13との直列回路をインバ−タ点灯装
置Ａの出力側端子に並列接続し、放電灯ＦＬ４０の非電
源側端子間にバイパス素子Ｃ12を並列接続し、インダク
タＬ13の両端にスイッチング素子ＳＷ1 を接続したもの
である。本回路に於いてはスイッチング素子ＳＷ1 をオ
ンし、１灯の放電灯ＦＬ４０（以下放電灯ＦＬ４０×１
灯と略する。）に対する限流素子としてインダクタＬ12
を選択した。To address this problem, for example, FIGS.
A second conventional example can be considered in which the circuit shown in FIG. In the circuit shown in FIG. 10, the inverter lighting device A is connected to both ends of the AC power supply V ac , and the series circuit of the discharge lamp FL40, the inductor L 12, and the inductor L 13 is connected to the output side terminal of the inverter lighting device A. In this configuration, the bypass element C 12 is connected in parallel between the non-power supply side terminals of the discharge lamp FL 40, and the switching element SW 1 is connected to both ends of the inductor L 13 . In this circuit, the switching element SW 1 is turned on to turn on one discharge lamp FL40 (hereinafter, discharge lamp FL40 × 1).
Abbreviated as a light. ) As the current limiting element for the inductor L 12
Was selected.
【０００６】図１１に示す回路は、図１０に示す回路の
放電灯ＦＬ４０×１灯の代わりに放電灯ＦＬ２０×２灯
を接続し、スイッチング素子ＳＷ1 をオフにして、放電
灯ＦＬ２０×２灯に対する限流素子としてインダクタＬ
12及びインダクタＬ13を選択した。ここで、負荷が放電
灯ＦＬ４０×１灯と放電灯ＦＬ２０×２灯との場合で限
流素子のインピ−ダンスを変えることにより、１つのイ
ンバ−タ点灯装置Ａで放電灯ＦＬ４０×１灯と放電灯Ｆ
Ｌ２０×２灯との両方とも定格で点灯できるように調整
するものであり、過負荷の防止による放電灯の寿命の低
下の防止、他品種の放電灯の互いの切替えの簡素化、装
置の小型化が可能となる。In the circuit shown in FIG. 11, instead of the discharge lamp FL40 × 1 lamp of the circuit shown in FIG. 10, a discharge lamp FL20 × 2 lamp is connected and the switching element SW 1 is turned off to discharge the discharge lamp FL20 × 2 lamp. Inductor L as a current limiting element for
12 and inductor L 13 were selected. Here, when the load is the discharge lamp FL40 × 1 lamp and the discharge lamp FL20 × 2 lamp, the impedance of the current limiting element is changed to change the discharge lamp FL40 × 1 lamp by one inverter lighting device A. Discharge lamp F
Both L20 x 2 lamps are adjusted so that they can be lighted at the rated value, prevention of reduction of the life of discharge lamps by prevention of overload, simplification of switching between other types of discharge lamps, and compactness of the device. Can be realized.
【０００７】[0007]
【発明が解決しようとする課題】しかし、上記従来例に
おいては、１つのインバ−タ点灯装置Ａの出力側端子に
複数の放電灯を直列に接続する場合、図１１の様な回路
ではインバ−タ点灯装置Ａ外部で放電灯を互いに接続し
なければならない手間が生じ、それを回避する為には図
１２に示す様にインバ−タ点灯装置Ａ内部に、各放電灯
を互いに直列に接続する短絡線Ｙが必要となる。図１２
の様な回路で過負荷によるランプ寿命の低下などの問題
を防ぐ為には、負荷に応じて限流素子のインピ−ダンス
を変化しなければならないという手間が生ずる。However, in the above-described conventional example, when a plurality of discharge lamps are connected in series to the output side terminal of one inverter lighting device A, the inverter shown in FIG. The discharge lamps have to be connected to each other outside the lighting device A, and in order to avoid this, as shown in FIG. 12, the discharge lamps are connected to each other in series inside the inverter lighting device A. The short circuit line Y is required. 12
In order to prevent a problem such as a decrease in lamp life due to an overload in such a circuit, it is necessary to change the impedance of the current limiting element according to the load.
【０００８】本発明は上記問題点に鑑みてなされたもの
で、その目的とするところは、１つのインバ−タ点灯装
置で他品種の放電灯に所定の高周波電力を供給でき、過
負荷の防止による放電灯の寿命の低下の防止、他品種の
放電灯の互いの切替えの簡素化、装置の小型化が可能
で、外部操作が要らない放電灯点灯装置を提供すること
にある。The present invention has been made in view of the above problems, and an object thereof is to prevent overload by supplying a predetermined high frequency power to a discharge lamp of another type with one inverter lighting device. It is an object of the present invention to provide a discharge lamp lighting device capable of preventing a reduction in the life of the discharge lamp due to the above, simplifying the switching between other types of discharge lamps, downsizing the device, and requiring no external operation.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決する為
に、請求項１記載の発明は、高周波電力を供給可能なイ
ンバ−タ回路と、前記インバ−タ回路の高周波電力を調
整する第１の限流素子と、前記インバ−タ回路の出力端
に前記第１の限流素子を介して形成される出力側端子と
を含むインバ−タ点灯装置と、前記インバ−タ点灯装置
の出力側端子間に接続される複数の放電灯と、前記各放
電灯の非電源側端子間に接続されるバイパス素子とを有
する放電灯点灯装置に於いて、前記インバ−タ点灯装置
の出力側に前記複数の放電灯がそれぞれ接続される増灯
用端子と、前記インバ−タ点灯装置内部に且つ少なくと
も１つの前記増灯用端子間に設けられて前記複数の放電
灯に供給される高周波電力を調整する第２の限流素子と
を備えたことを特徴とするものであり、請求項２記載の
発明は、前記第１及び第２の限流素子と前記バイパス素
子とで共振回路を形成したことを特徴とするものであ
る。In order to solve the above problems, an invention according to claim 1 is an inverter circuit capable of supplying high frequency power, and a first frequency circuit for adjusting the high frequency power of the inverter circuit. And an inverter side lighting device including an output side terminal formed at the output end of the inverter circuit via the first current limiting device, and an output side of the inverter side lighting device. In a discharge lamp lighting device having a plurality of discharge lamps connected between terminals and a bypass element connected between non-power source side terminals of each discharge lamp, the output side of the inverter lighting device is provided with the above Adjusting high-frequency power supplied to the plurality of discharge lamps, which is provided inside the inverter lighting device and between at least one of the additional lightening terminals, to which the plurality of discharge lamps are respectively connected. And a second current limiting element that To is intended, invention of claim 2, is characterized in that the formation of the resonant circuit at the first and second current limiting element and the bypass element.
【００１０】[0010]
【作用】請求項１記載の発明によれば、用途即ち放電灯
の数量、品種にあわせて増灯用端子を適宜選択すること
により、他品種の放電灯の互いの切替えの簡素化、装置
の小型化が可能となり、外部操作が不要となり、請求項
２記載の発明によれば、第１、第２の限流素子とバイパ
ス素子とが共振回路を形成するので、１つのインバ−タ
点灯装置で他品種の放電灯に高周波電力を供給でき、過
負荷の防止による放電灯の寿命の低下の防止が可能とな
る。According to the first aspect of the present invention, by appropriately selecting the increase lamp terminal in accordance with the use, that is, the number and type of discharge lamps, it is possible to simplify the switching of the discharge lamps of other types to each other. According to the invention as set forth in claim 2, the size can be reduced and external operation is not required. Since the first and second current limiting elements and the bypass element form a resonance circuit, one inverter lighting device is provided. As a result, high-frequency power can be supplied to another type of discharge lamp, and it is possible to prevent the life of the discharge lamp from being shortened by preventing overload.
【００１１】[0011]
（実施例１）図１及び図２は本発明に係る第１実施例を
示す回路図である。(Embodiment 1) FIGS. 1 and 2 are circuit diagrams showing a first embodiment according to the present invention.
【００１２】前記第１従来例である図７の回路と異なる
点は、インバ−タ点灯装置Ａの出力側端子１、４の他
に、インバ−タ点灯装置Ａ内部で限流素子インダクタＬ
2 により互いに接続された増灯用端子２、３を設けたこ
とである。The difference from the circuit of FIG. 7 which is the first conventional example is that, in addition to the output side terminals 1 and 4 of the inverter lighting device A, a current limiting element inductor L is provided inside the inverter lighting device A.
It is providing the increased lamp terminals 2 and 3 which are connected to each other by two.
【００１３】放電灯ＦＬ４０×１灯の場合は、図１に示
す様に出力側端子１、４間に放電灯ＦＬ４０×１灯が接
続され、放電灯ＦＬ４０の非電源側端子間にはバイパス
素子コンデンサＣ2 が接続されている。図２に示す様に
放電灯ＦＬ２０×２灯の場合は、限流素子インダクタＬ
2 を介して、放電灯ＦＬ２０×２灯の直列回路が出力側
端子１、４間に接続され、放電灯ＦＬ２０の非電源側端
子間にはバイパス素子コンデンサＣ3 及びコンデンサＣ
4 が接続されている。In the case of the discharge lamp FL40 × 1 lamp, as shown in FIG. 1, the discharge lamp FL40 × 1 lamp is connected between the output side terminals 1 and 4, and the bypass element is provided between the non-power source side terminals of the discharge lamp FL40. The capacitor C 2 is connected. As shown in FIG. 2, in the case of the discharge lamp FL20 × 2 lamps, the current limiting element inductor L
A series circuit of discharge lamps FL20 × 2 lamps is connected between the output side terminals 1 and 4 via 2, and a bypass element capacitor C 3 and a capacitor C 3 are provided between the non-power source side terminals of the discharge lamp FL20.
4 is connected.
【００１４】放電灯ＦＬ４０×１灯の場合は、図１の様
にインダクタＬ1 を限流素子とし、放電灯ＦＬ２０×２
灯の場合は、図２の様にインダクタＬ1 及びＬ2 を限流
素子とすることにより、外部操作なしに放電灯ＦＬ４０
×１灯と放電灯ＦＬ２０×２灯の様な他品種の放電灯の
過負荷保護が可能となり、各放電灯の寿命の低下を防止
する。また、インダクタＬ1 及びインダクタＬ2 とコン
デンサＣ2 〜Ｃ4 で共振回路を形成する様に定数を設定
することにより、高周波電力を各放電灯に供給すること
が可能となる。その他は従来例と同様であるので、同等
構成に同一符号を付すことにより説明を省略する。In the case of a discharge lamp FL40 × 1 lamp, as shown in FIG. 1, the inductor L 1 is a current limiting element, and the discharge lamp FL20 × 2.
In the case of a lamp, by using inductors L 1 and L 2 as current limiting elements as shown in FIG. 2, the discharge lamp FL40 can be operated without external operation.
This enables overload protection of other types of discharge lamps such as × 1 lamp and discharge lamp FL20 × 2 lamp, and prevents a reduction in the life of each discharge lamp. Further, by setting the constants so that the inductor L 1 and the inductor L 2 and the capacitors C 2 to C 4 form a resonance circuit, it becomes possible to supply high-frequency power to each discharge lamp. Others are the same as those of the conventional example, and therefore, the description is omitted by giving the same reference numerals to the same components.
【００１５】（実施例２）図３及び図４は本発明に係る
第２実施例を示す回路図である。(Second Embodiment) FIGS. 3 and 4 are circuit diagrams showing a second embodiment according to the present invention.
【００１６】前記第１実施例と異なる点は、インバ−タ
点灯装置Ａの増灯用端子を２灯用から３灯用に増やし、
出力側端子を１、６、増灯用端子を３〜５とし、第１実
施例の場合とは異なりコンデンサＣ5 〜Ｃ7 をインバ−
タ点灯装置Ａの内部に限流素子として設置し、インダク
タＬ4 〜Ｌ8 をバイパス素子として前記放電灯の非電源
側端子間に接続し、増灯用端子２、３間をコンデンサＣ
5 で接続し、端子４、５間をコンデンサＣ6 で接続し、
端子１にコンデンサＣ7 の一端を接続したことである。The difference from the first embodiment is that the number of additional lightening terminals of the inverter lighting device A is increased from two to three.
The output side terminals are 1 and 6, the additional light emitting terminals are 3 to 5, and the capacitors C 5 to C 7 are inverted, unlike the case of the first embodiment.
Is installed as a current limiting element inside the lighting device A, the inductors L 4 to L 8 are used as bypass elements to connect between the non-power supply side terminals of the discharge lamp, and a capacitor C is provided between the additional lightening terminals 2 and 3.
Connect with 5 and connect between terminals 4 and 5 with capacitor C 6 .
That is, one end of the capacitor C 7 is connected to the terminal 1.
【００１７】本実施例は、図３の回路に於いては端子
１、２間と、端子３、６間とに各々放電灯ＦＬ１０を、
各放電灯ＦＬ１０の非電源側端子間にインダクタＬ4 及
びインダクタＬ5 を接続し、図４の回路に於いては端子
１、２間と、端子３、４間と、端子５、６間とに各々放
電灯ＦＬ８を、放電灯ＦＬ８の非電源側端子間にインダ
クタＬ6 〜Ｌ8 を接続する。以上の様に１つのインバ−
タ点灯装置Ａで２乃至３灯の放電灯が点灯可能となる。In this embodiment, in the circuit of FIG. 3, a discharge lamp FL10 is provided between terminals 1 and 2 and between terminals 3 and 6, respectively.
Inductors L 4 and L 5 are connected between the non-power supply side terminals of each discharge lamp FL10, and in the circuit of FIG. 4, between terminals 1 and 2, between terminals 3 and 4, and between terminals 5 and 6. each discharge lamp FL8, connecting the inductor L 6 ~L 8 between the non-power supply side terminal of the discharge lamp FL8 in. As mentioned above, one Inver
The lighting device A can light two or three discharge lamps.
【００１８】ここでコンデンサＣ5 及びコンデンサＣ6
の定数を同じにしておくと放電灯の種類による増灯用端
子の特定が必要ない為、更に本装置は使いやすくなる。
その他は第１実施例と同様であるので、同等構成に同一
符号を付すことにより説明を省略する。Here, the capacitors C 5 and C 6
If the constants are set to be the same, it is not necessary to specify the terminal for increasing the light emission depending on the type of the discharge lamp, so that the present apparatus becomes easier to use.
Since the other points are the same as those in the first embodiment, the description is omitted by giving the same reference numerals to the same components.
【００１９】（実施例３）図５及び図６は本発明に係る
第３実施例を示す回路図である。(Embodiment 3) FIGS. 5 and 6 are circuit diagrams showing a third embodiment of the present invention.
【００２０】前記第２実施例と異なる点は、第２実施例
の回路に於いて、インバ−タ点灯装置Ａの端子１、２間
を短絡し、端子３、５間をインダクタＬ9 で接続し、端
子４、５間をインダクタＬ10で接続し、端子１にインダ
クタＬ11の一端を接続したことである。The difference from the second embodiment is that in the circuit of the second embodiment, terminals 1 and 2 of the inverter lighting device A are short-circuited and terminals 3 and 5 are connected by an inductor L 9 . Then, the terminals 4 and 5 are connected by the inductor L 10 , and one end of the inductor L 11 is connected to the terminal 1.
【００２１】本実施例は、図５の回路に於いては、端子
１、６に放電灯ＦＬ４０を、放電灯ＦＬ４０の非電源側
端子間にコンデンサＣ8 を接続し、図６の回路に於いて
は端子２、３間及び端子１、４間に各々放電灯ＦＬ１０
を、端子５、６間に放電灯ＦＬ２０を、各放電灯ＦＬ１
０の非電源側端子間にコンデンサＣ10及びコンデンンサ
Ｃ11を、放電灯ＦＬ２０の非電源側端子間にコンデンサ
Ｃ9 を接続する。[0021] The present embodiment, in the circuit of FIG. 5, the discharge lamp FL40 to the terminal 1,6, connect the capacitor C 8 between the non-power supply side terminal of the discharge lamp FL40, at the circuit of FIG. 6 The discharge lamp FL10 between terminals 2 and 3 and between terminals 1 and 4, respectively.
, The discharge lamp FL20 between the terminals 5 and 6, and each discharge lamp FL1.
A capacitor C 10 and a condenser C 11 are connected between the non-power supply side terminals of 0, and a capacitor C 9 is connected between the non-power supply side terminals of the discharge lamp FL20.
【００２２】以上の様に１つのインバ−タ点灯装置Ａで
１乃至３灯の放電灯が点灯可能となる。その他は第２実
施例と同様であるので、同等構成に同一符号を付すこと
により説明を省略する。As described above, one to three discharge lamps can be turned on by one inverter lighting device A. Since the other points are the same as those in the second embodiment, the description thereof will be omitted by giving the same reference numerals to the same components.
【００２３】なお、上記実施例１乃至３においては放電
灯が３灯までの装置しか示さなかったが、本発明を４灯
以上の多品種の放電灯に利用することも可能である。In the above-mentioned Embodiments 1 to 3, only a device having up to three discharge lamps is shown, but the present invention can be applied to a variety of discharge lamps having four or more lights.
【００２４】[0024]
【発明の効果】本発明は上記の様にインバ−タ点灯装置
の出力側に増灯用端子を設けると共に、インバ−タ点灯
装置の内部であって且つ少なくとも１つの該増灯用端子
間に限流素子を設けたので、他品種の放電灯の互いの切
替えの簡素化、装置の小型化が可能で、外部操作が要ら
ない放電灯点灯装置を提供できる。また、請求項２記載
の発明の様に、限流素子とバイパス素子とで共振回路を
形成すれば、１つのインバ−タ点灯装置で他品種の放電
灯に高周波電力を供給でき、過負荷の防止による放電灯
の寿命の低下の防止が可能な放電灯点灯装置を提供でき
る。As described above, according to the present invention, the additional lighting terminal is provided on the output side of the inverter lighting device and the inside of the inverter lighting device is provided between at least one of the additional lighting terminals. Since the current limiting element is provided, it is possible to provide a discharge lamp lighting device that does not require external operation, because it is possible to simplify switching between other types of discharge lamps and downsize the device. Further, if the resonance circuit is formed by the current limiting element and the bypass element as in the second aspect of the present invention, one inverter lighting device can supply high frequency power to the discharge lamps of other types, resulting in overload. It is possible to provide a discharge lamp lighting device capable of preventing the reduction of the life of the discharge lamp due to the prevention.
【図１】本発明に係る第１実施例を示す１つの接続例を
示す回路図である。FIG. 1 is a circuit diagram showing one connection example showing a first embodiment according to the present invention.
【図２】本発明に係る第１実施例を示す他の接続例を示
す回路図である。FIG. 2 is a circuit diagram showing another connection example showing the first embodiment according to the present invention.
【図３】本発明に係る第２実施例を示す１つの接続例を
示す回路図である。FIG. 3 is a circuit diagram showing one connection example showing a second embodiment according to the present invention.
【図４】本発明に係る第２実施例を示す他の接続例を示
す回路図である。FIG. 4 is a circuit diagram showing another connection example showing the second embodiment according to the present invention.
【図５】本発明に係る第３実施例を示す１つの接続例を
示す回路図である。FIG. 5 is a circuit diagram showing one connection example showing a third embodiment according to the present invention.
【図６】本発明に係る第３実施例を示す他の接続例を示
す回路図である。FIG. 6 is a circuit diagram showing another connection example showing the third embodiment according to the present invention.
【図７】本発明に係る第１従来例を示す回路図である。FIG. 7 is a circuit diagram showing a first conventional example according to the present invention.
【図８】本発明に係る第１従来例の使用状態を示す斜視
図である。FIG. 8 is a perspective view showing a usage state of a first conventional example according to the present invention.
【図９】本発明に係る第１従来例の使用状態を示す回路
図である。FIG. 9 is a circuit diagram showing a usage state of a first conventional example according to the present invention.
【図１０】本発明に係る第２従来例の１つの接続例を示
す回路図である。FIG. 10 is a circuit diagram showing one connection example of a second conventional example according to the present invention.
【図１１】本発明に係る第２従来例の他の接続例を示す
回路図である。FIG. 11 is a circuit diagram showing another connection example of the second conventional example according to the present invention.
【図１２】本発明に係る第２従来例の他の接続例を示す
もう１つの回路図である。FIG. 12 is another circuit diagram showing another connection example of the second conventional example according to the present invention.
ＦＬ 放電灯 Ａ インバ−タ点灯装置 Ｂ インバ−タ回路 Ｃ コンデンサ Ｌ インダクタ １、２、３、４、５、６ 端子 FL discharge lamp A Inverter lighting device B Inverter circuit C Capacitor L Inductor 1, 2, 3, 4, 5, 6 terminals
Claims (2)
と、前記インバ−タ回路の高周波電力を調整する第１の
限流素子と、前記インバ−タ回路の出力端に前記第１の
限流素子を介して形成される出力側端子とを含むインバ
−タ点灯装置と、前記インバ−タ点灯装置の出力側端子
間に接続される複数の放電灯と、前記各放電灯の非電源
側端子間に接続されるバイパス素子とを有する放電灯点
灯装置に於いて、前記インバ−タ点灯装置の出力側に前
記複数の放電灯がそれぞれ接続される増灯用端子と、前
記インバ−タ点灯装置内部であって且つ少なくとも１つ
の前記増灯用端子間に設けられ、前記複数の放電灯に供
給される高周波電力を調整する第２の限流素子とを備え
たことを特徴とする放電灯点灯装置。1. An inverter circuit capable of supplying high frequency power, a first current limiting element for adjusting the high frequency power of the inverter circuit, and the first limiter at the output end of the inverter circuit. An inverter lighting device including an output side terminal formed via a flow element, a plurality of discharge lamps connected between the output side terminals of the inverter lighting device, and a non-power source side of each of the discharge lamps. In a discharge lamp lighting device having a bypass element connected between terminals, an increase lamp terminal to which the plurality of discharge lamps are respectively connected to the output side of the inverter lighting device, and the inverter lighting A discharge lamp, which is provided inside the device and between at least one of the terminals for increasing light, and which includes a second current limiting element for adjusting high-frequency power supplied to the plurality of discharge lamps. Lighting device.
パス素子とで共振回路を形成することを特徴とする請求
項１記載の放電灯点灯装置。2. The discharge lamp lighting device according to claim 1, wherein a resonant circuit is formed by the first and second current limiting elements and the bypass element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6025185A JPH07235386A (en) | 1994-02-23 | 1994-02-23 | Discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6025185A JPH07235386A (en) | 1994-02-23 | 1994-02-23 | Discharge lamp lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07235386A true JPH07235386A (en) | 1995-09-05 |
Family
ID=12158932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6025185A Withdrawn JPH07235386A (en) | 1994-02-23 | 1994-02-23 | Discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07235386A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011164662A (en) * | 1999-12-28 | 2011-08-25 | Semiconductor Energy Lab Co Ltd | Manufacturing method for liquid crystal display device |
-
1994
- 1994-02-23 JP JP6025185A patent/JPH07235386A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011164662A (en) * | 1999-12-28 | 2011-08-25 | Semiconductor Energy Lab Co Ltd | Manufacturing method for liquid crystal display device |
| US8648995B2 (en) | 1999-12-28 | 2014-02-11 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010508 |