JP4759105B2 - High pressure discharge lamp lighting device - Google Patents

High pressure discharge lamp lighting device Download PDF

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JP4759105B2
JP4759105B2 JP2005236379A JP2005236379A JP4759105B2 JP 4759105 B2 JP4759105 B2 JP 4759105B2 JP 2005236379 A JP2005236379 A JP 2005236379A JP 2005236379 A JP2005236379 A JP 2005236379A JP 4759105 B2 JP4759105 B2 JP 4759105B2
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voltage
discharge lamp
pressure discharge
high pressure
circuit
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JP2007052977A5 (en
JP2007052977A (en
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努 高月
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オスラム・メルコ株式会社
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Priority to CN2006800299426A priority patent/CN101243729B/en
Priority to EP20060781598 priority patent/EP1916882B1/en
Priority to KR1020087006305A priority patent/KR101226179B1/en
Priority to AU2006280899A priority patent/AU2006280899B2/en
Priority to PCT/JP2006/314686 priority patent/WO2007020776A1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/18—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having a starting switch
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp

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  • Circuit Arrangements For Discharge Lamps (AREA)

Description

この発明は、高圧放電灯点灯装置に関し、特に出力配線長を伸ばすことが可能な始動パルス発生回路を備えた高圧放電灯点灯装置に関するものである。   The present invention relates to a high pressure discharge lamp lighting device, and more particularly to a high pressure discharge lamp lighting device including a start pulse generation circuit capable of extending an output wiring length.

図７は従来の高圧放電灯点灯装置を示すブロック図である。高圧放電灯点灯装置は、商用電源１が投入されると、制御電源回路１０が制御電源を生成して、制御回路９が動作し、昇圧インバーター３、降圧インバーター４、矩形波回路６、始動パルス発生回路７に制御信号を送り、それぞれが動作を開始する。昇圧インバーター３は、整流回路２で整流された出力を規定の電圧に昇圧し、降圧インバーター４は高圧放電灯８に流れる電流が規定の電流になるように出力を調整する。矩形波回路６は、高圧放電灯８に規定の周波数の交流矩形波電圧を出力する。始動パルス発生回路７は、高圧パルスを発生させて高圧放電灯８を始動させる。   FIG. 7 is a block diagram showing a conventional high pressure discharge lamp lighting device. In the high pressure discharge lamp lighting device, when the commercial power source 1 is turned on, the control power source circuit 10 generates the control power source, the control circuit 9 operates, and the step-up inverter 3, the step-down inverter 4, the rectangular wave circuit 6, the start pulse A control signal is sent to the generation circuit 7, and each starts operation. The step-up inverter 3 boosts the output rectified by the rectifier circuit 2 to a prescribed voltage, and the step-down inverter 4 adjusts the output so that the current flowing through the high-pressure discharge lamp 8 becomes a prescribed current. The rectangular wave circuit 6 outputs an AC rectangular wave voltage having a specified frequency to the high pressure discharge lamp 8. The start pulse generation circuit 7 generates a high pressure pulse to start the high pressure discharge lamp 8.

図８は、始動パルス発生回路７の詳細図である。始動パルス発生回路７は、高圧放電灯８の始動時のみ動作し、高圧パルスを発生する。始動パルス発生回路７は、トランスＴ１、外部制御信号によりオン／オフ可能なスイッチング素子であるＦＥＴ（電界効果トランジスタ）、商用電源１の交流電圧を整流し、昇圧インバーター３で昇圧した直流電圧Ｖｃｃで充電されるコンデンサＣ１、ＦＥＴの過電流保護を行うインダクタンスＬ１、トランスＴ１で発生した高電圧パルスが矩形波回路６に回り込まないようにブロックするコンデンサＣ２とを有する。
特開平１１−３０７２８５号公報 特開２０００−３０６６８８号公報 特開２００２−７５６７３号公報 FIG. 8 is a detailed view of the start pulse generation circuit 7. The start pulse generation circuit 7 operates only when the high pressure discharge lamp 8 is started, and generates a high pressure pulse. The start pulse generating circuit 7 rectifies the AC voltage of the transformer T1, the switching element FET (field effect transistor) that can be turned on / off by an external control signal, and the commercial power supply 1, and the DC voltage Vcc boosted by the boost inverter 3 The capacitor C1 to be charged, the inductance L1 that protects the FET from overcurrent, and the capacitor C2 that blocks the high voltage pulse generated by the transformer T1 from entering the rectangular wave circuit 6 are included.
Japanese Patent Laid-Open No. 11-307285 JP 2000-306688 A JP 2002-75673 A

高輝度高圧放電灯等の高圧放電灯は、一例として始動パルス電圧が３〜５ｋＶｐと規定されている。高圧放電灯点灯装置は、出力配線長が長くなると始動パルス電圧が出力容量の増大によって減衰するため、ランプの始動パルス電圧規定値を下回り、例えば出力配線長が１０ｍの場合、ランプが始動できない課題が発生する。よって、高圧放電灯点灯装置の出力配線長は、２ｍ以下の規定があり、施工上の制約となっている（図９参照）。出力配線長が１０ｍ先で始動パルス電圧が４ｋＶｐを出力する高圧放電灯点灯装置にすればよいが、この高圧放電灯点灯装置を２ｍ以下で使用すると始動パルス電圧が５．６ｋＶｐ以上になり、配線、ソケット、高圧放電灯等でリークの危険がある。   As an example, a high-pressure discharge lamp such as a high-intensity high-pressure discharge lamp has a starting pulse voltage of 3 to 5 kVp. In the high pressure discharge lamp lighting device, when the output wiring length becomes long, the starting pulse voltage attenuates due to the increase in output capacity. Therefore, when the output wiring length is 10 m, for example, the lamp cannot be started. Will occur. Therefore, the output wiring length of the high pressure discharge lamp lighting device has a regulation of 2 m or less, which is a constructional restriction (see FIG. 9). A high pressure discharge lamp lighting device that outputs a starting pulse voltage of 4 kVp with an output wiring length of 10 m may be used. There is a risk of leakage in sockets, high-pressure discharge lamps, etc.

この発明は、上記のような課題を解決するためになされたもので、始動パルス電圧をフィードバックして一定化することにより、出力配線長が増加して出力容量が増えても、始動パルス電圧を規定値内に維持することができる高圧放電灯点灯装置を提供することを目的とする。   The present invention has been made to solve the above-described problems.By feeding back and stabilizing the starting pulse voltage, the starting pulse voltage can be reduced even if the output wiring length increases and the output capacity increases. An object of the present invention is to provide a high pressure discharge lamp lighting device that can be maintained within a specified value.

この発明に係る高圧放電灯点灯装置は、高圧放電灯と、この高圧放電灯に始動用高電圧を供給する始動パルス発生回路と、この始動パルス発生回路を制御する制御回路とを備えた高圧放電灯点灯装置において、
前記始動パルス発生回路は、
スイッチング素子のオン／オフにより発生するパルス電圧を昇圧するトランスと、
このトランスに設けられたフィードバック電圧検出巻線と、
前記フィードバック電圧検出巻線に発生する電圧を分割する電圧分割回路と、
この電圧分割回路の出力から始動パルス電圧成分を検出し、前記制御回路にフィードバックするパルス検出回路とを備え、前記制御回路は、前記トランスの昇圧後の電圧を所定値に維持することを特徴とする。 A high pressure discharge lamp lighting device according to the present invention includes a high pressure discharge lamp, a start pulse generating circuit for supplying a high voltage for starting to the high pressure discharge lamp, and a control circuit for controlling the start pulse generating circuit. In the lighting device,
The starting pulse generating circuit is
A transformer that boosts a pulse voltage generated by turning on / off the switching element;
A feedback voltage detection winding provided in the transformer;
A voltage dividing circuit for dividing a voltage generated in the feedback voltage detection winding;
A pulse detection circuit for detecting a starting pulse voltage component from the output of the voltage dividing circuit and feeding back to the control circuit, wherein the control circuit maintains the voltage after the boost of the transformer at a predetermined value. To do.

この発明に係る高圧放電灯点灯装置は、上記構成により、出力配線長が増加して出力容量が増えても、始動パルス電圧を規定値内に維持することができる。   With the above configuration, the high pressure discharge lamp lighting device according to the present invention can maintain the starting pulse voltage within a specified value even when the output wiring length increases and the output capacity increases.

実施の形態１．
図１乃至６は実施の形態１を示す図で、図１は出力配線長変更時の始動パルス発生回路７の出力電圧測定図、図２，３は配線長を変化したときの始動パルス電圧の測定結果を示す図、図４，５は配線長を変化したときのＦＥＴ（電界効果トランジスタ）電圧Ｖ（Ｃ）、始動パルス電圧Ｖ（Ｂ）の測定結果を示す図、図６は始動パルス発生回路７の詳細図である。
尚、高圧放電灯点灯装置の全体構成は従来のものと同様であり、始動パルス発生回路７に本実施の形態は特徴がある。 Embodiment 1 FIG.
1 to 6 are diagrams showing the first embodiment. FIG. 1 is a measurement diagram of the output voltage of the start pulse generating circuit 7 when the output wiring length is changed. FIGS. 2 and 3 are graphs showing the start pulse voltage when the wiring length is changed. FIGS. 4 and 5 are diagrams showing measurement results. FIGS. 4 and 5 are diagrams showing measurement results of FET (field effect transistor) voltage V (C) and starting pulse voltage V (B) when the wiring length is changed. FIG. FIG. 7 is a detailed diagram of the circuit 7.
The overall configuration of the high pressure discharge lamp lighting device is the same as that of the prior art, and the start pulse generating circuit 7 is characterized by this embodiment.

背景技術でも述べたが、出力配線長を伸ばすと、始動パルス電圧値が低下し、高圧放電灯の始動電圧を下回ると、高圧放電灯が始動しない不具合が起こる場合があり、一般的に高圧放電灯点灯装置では出力配線長を２ｍ以下に規定している。高圧放電灯は、３．５ｋＶｐでは始動がバラツキ、３．０ｋＶｐでは始動しない。   As described in the background art, if the output wiring length is extended, the starting pulse voltage value decreases. If the output wiring voltage falls below the starting voltage of the high-pressure discharge lamp, there may be a problem that the high-pressure discharge lamp does not start. In the lighting device, the output wiring length is specified to be 2 m or less. The high-pressure discharge lamp starts at 3.5 kVp and does not start at 3.0 kVp.

出力配線長が長くても、始動パルス電圧をフィードバックすることで、始動電圧値を確保し、ランプ始動不良を起こさない始動方式を提案する。   We propose a starting method that ensures the starting voltage value by feeding back the starting pulse voltage even when the output wiring length is long and does not cause a lamp starting failure.

そのためには、下記二つの点が成立することが不可欠である。即ち、
（１）図１のＡ点とＢ点の始動パルス発生回路７からの出力電圧が、ほぼ等しいこと。例えば、Ａ点の電圧が５ｋＶｐでも、Ｂ点の電圧が３ｋＶｐでは、始動パルス発生回路の出力電圧（ほぼＡ点の電圧）をフィードバックしても解決しない。
（２）始動パルス電圧を制御する場合、始動パルス電圧は３〜５ｋＶｐと高電圧であり、高耐圧部品を多数使用する必要があり大型化する。また、高耐圧部品を実装したとしても、通常点灯時にはロスになる。フィードバックする電圧は、１０Ｖｐ程度が適する。図８に示した始動パルス発生回路７では、トランスＴ１を使用しているが、昇圧前のＦＥＴ電圧Ｖ（Ｃ）と、出力配線長先のＢ点の電圧である始動パルス電圧Ｖ（Ｂ）とに相関関係があれば、低い電圧のＦＥＴ電圧Ｖ（Ｃ）を制御することで、出力配線長先のＢ点の電圧を制御可能となる。 To that end, the following two points must be established. That is,
(1) The output voltages from the starting pulse generating circuit 7 at the points A and B in FIG. For example, even if the voltage at the point A is 5 kVp and the voltage at the point B is 3 kVp, feeding back the output voltage (approximately the voltage at the point A) of the starting pulse generation circuit does not solve the problem.
(2) When the starting pulse voltage is controlled, the starting pulse voltage is as high as 3 to 5 kVp, and it is necessary to use a large number of high voltage components, resulting in an increase in size. Even if a high voltage component is mounted, a loss occurs during normal lighting. A voltage of about 10 Vp is suitable for feedback. In the starting pulse generation circuit 7 shown in FIG. 8, the transformer T1 is used, but the FET voltage V (C) before boosting and the starting pulse voltage V (B) which is the voltage at the point B ahead of the output wiring length. Can be controlled by controlling the FET voltage V (C), which is a low voltage, to control the voltage at the point B ahead of the output wiring length.

そこで、先ず、上記（１）項の図１のＡ点とＢ点の始動パルス電圧Ｖ（Ａ）、始動パルス電圧Ｖ（Ｂ）を出力配線長を変化させて測定した。実験に使用した配線は、ＶＶＦケーブルである。測定結果を図２、３に示す。出力配線長０，０．５，１，２，４，６，８，１０ｍについて、Ａ点とＢ点の始動パルス電圧Ｖ（Ａ）、始動パルス電圧Ｖ（Ｂ）を測定した。図２、３に示すように、Ａ点とＢ点の始動パルス電圧Ｖ（Ａ）、始動パルス電圧Ｖ（Ｂ）は、出力配線長に関係なくほぼ同等であることが確認できた。従って、例えば、始動パルス電圧Ｖ（Ａ）を４ｋＶｐに制御すれば、始動パルス電圧Ｖ（Ｂ）もほぼ４ｋＶｐに制御可能である。   Therefore, first, the starting pulse voltage V (A) and the starting pulse voltage V (B) at the points A and B in FIG. 1 in the above item (1) were measured while changing the output wiring length. The wiring used for the experiment is a VVF cable. The measurement results are shown in FIGS. For the output wiring lengths 0, 0.5, 1, 2, 4, 6, 8, and 10 m, the starting pulse voltage V (A) and the starting pulse voltage V (B) at points A and B were measured. As shown in FIGS. 2 and 3, it was confirmed that the starting pulse voltage V (A) and the starting pulse voltage V (B) at the points A and B were almost equal regardless of the output wiring length. Therefore, for example, if the starting pulse voltage V (A) is controlled to 4 kVp, the starting pulse voltage V (B) can also be controlled to about 4 kVp.

次に、上記（２）項を確認するために、出力配線長を変化させて、トランスＴ１の昇圧前のＦＥＴ電圧Ｖ（Ｃ）と始動パルス電圧Ｖ（Ａ）を測定し、その結果を図４，５に示す。
図４，５に示すように、ＦＥＴ電圧Ｖ（Ｃ）と始動パルス電圧Ｖ（Ａ）は相関関係があり、電圧値の低いＦＥＴ電圧Ｖ（Ｃ）を制御することで、始動パルス電圧Ｖ（Ａ）を制御できることが解った。ＦＥＴ電圧Ｖ（Ｃ）は、始動パルス電圧Ｖ（Ａ）の１／１０以下である。電圧値が始動パルス電圧Ｖ（Ａ）の１／１０以下の電圧をフィードバックすればよく、小型の回路で作成可能となる。ＦＥＴ電圧Ｖ（Ｃ）は、フィードバックに望ましい１０Ｖｐよりは大きいが、３００Ｖｐ程度であれば、数少ない複数の回路部品でフィードバック回路を構成することができる。 Next, in order to confirm the above item (2), the output wiring length is changed, and the FET voltage V (C) and the starting pulse voltage V (A) before boosting the transformer T1 are measured. 4 and 5.
As shown in FIGS. 4 and 5, the FET voltage V (C) and the start pulse voltage V (A) have a correlation, and the start pulse voltage V (C) is controlled by controlling the FET voltage V (C) having a low voltage value. It was found that A) can be controlled. The FET voltage V (C) is 1/10 or less of the starting pulse voltage V (A). It is sufficient to feed back a voltage whose voltage value is 1/10 or less of the starting pulse voltage V (A), and it can be created with a small circuit. The FET voltage V (C) is larger than 10 Vp, which is desirable for feedback, but if it is about 300 Vp, a feedback circuit can be configured with a small number of circuit components.

図６により、本実施の形態の始動パルス発生回路７を説明する。トランスＴ１に、フィードバック電圧検出巻線Ｎ３を追加する。具体的には、例えば、１次巻線Ｎ１を６ターン、２次巻線Ｎ２を８８ターン、フィードバック電圧検出巻線Ｎ３を１ターンとすると、ＦＥＴ電圧Ｖ（Ｃ）＝３００Ｖｐ、始動パルス電圧Ｖ（Ａ）＝４．４ｋＶｐ、フィードバック電圧Ｖ（Ｆ）＝５０Ｖｐとなる。   The starting pulse generation circuit 7 of the present embodiment will be described with reference to FIG. A feedback voltage detection winding N3 is added to the transformer T1. Specifically, for example, when the primary winding N1 is 6 turns, the secondary winding N2 is 88 turns, and the feedback voltage detection winding N3 is 1 turn, the FET voltage V (C) = 300 Vp, the starting pulse voltage V (A) = 4.4 kVp and feedback voltage V (F) = 50 Vp.

フィードバック電圧検出巻線Ｎ３に、電圧分割回路１１を接続する。電圧分割回路１１は、例えば、抵抗により構成し、任意の電圧に分割する。フィードバック電圧として好ましい１０Ｖｐ程度に下げることも可能となる。   The voltage dividing circuit 11 is connected to the feedback voltage detection winding N3. The voltage dividing circuit 11 is constituted by a resistor, for example, and divides it into an arbitrary voltage. The feedback voltage can be lowered to about 10 Vp which is preferable.

電圧分割回路１１に、さらに、パルス検出回路１２を接続する。電圧分割回路１１の出力には、必要な始動パルス電圧成分以外に、種々の電圧成分が含まれる。パルス検出回路１２は、この中から、始動パルス電圧成分を検出する。   A pulse detection circuit 12 is further connected to the voltage dividing circuit 11. The output of the voltage dividing circuit 11 includes various voltage components in addition to the necessary start pulse voltage component. The pulse detection circuit 12 detects the starting pulse voltage component from these.

そして、パルス検出回路１２の出力を、制御回路９にフィードバックする。始動パルス電圧Ｖ（Ａ）が一定の例えば４ｋＶｐになるように、制御回路９がＦＥＴ電圧Ｖ（Ｃ）を制御する。   Then, the output of the pulse detection circuit 12 is fed back to the control circuit 9. The control circuit 9 controls the FET voltage V (C) so that the starting pulse voltage V (A) is constant, for example, 4 kVp.

このように、本実施の形態によれば、トランスＴ１に設けたフィードバック電圧巻線Ｎ３の低い電圧（例えば、５０Ｖｐ）を、更に電圧分割回路１１で分割して低下させ、パルス検出回路１２で必要な始動パルス電圧成分を検出して制御回路９にフィードバックするようにしたので、始動パルス電圧Ｖ（Ａ）を例えば４ｋＶｐに維持できる。出力配線長１０ｍ程度までは、始動パルス電圧は、出力配線長に関係なくほぼ同等であることが確認されているので、始動パルス電圧Ｖ（Ａ）を上記４ｋＶｐに維持すれば、出力配線長１０ｍ先の始動パルス電圧もほぼ同じ電圧値に維持できる。   As described above, according to the present embodiment, the low voltage (for example, 50 Vp) of the feedback voltage winding N3 provided in the transformer T1 is further divided and reduced by the voltage divider circuit 11, and is required by the pulse detection circuit 12. Since the start pulse voltage component is detected and fed back to the control circuit 9, the start pulse voltage V (A) can be maintained at 4 kVp, for example. Up to about 10 m of output wiring length, it has been confirmed that the starting pulse voltage is almost the same regardless of the output wiring length. Therefore, if the starting pulse voltage V (A) is maintained at 4 kVp, the output wiring length of 10 m The previous starting pulse voltage can also be maintained at substantially the same voltage value.

実施の形態１を示す図で、出力配線長変更時の始動パルス発生回路の出力電圧測定図である。FIG. 5 is a diagram illustrating the first embodiment, and is an output voltage measurement diagram of a start pulse generation circuit when the output wiring length is changed. 実施の形態１を示す図で、配線長を変化したときの始動パルス電圧の測定結果を示す図である。It is a figure which shows Embodiment 1, and is a figure which shows the measurement result of the starting pulse voltage when wiring length is changed. 実施の形態１を示す図で、配線長を変化したときの始動パルス電圧の測定結果を示す図である。It is a figure which shows Embodiment 1, and is a figure which shows the measurement result of the starting pulse voltage when wiring length is changed. 実施の形態１を示す図で、配線長を変化したときのＦＥＴ電圧Ｖ（Ｃ）、始動パルス電圧Ｖ（Ｂ）の測定結果を示す図である。It is a figure which shows Embodiment 1, and is a figure which shows the measurement result of FET voltage V (C) when the wiring length is changed, and starting pulse voltage V (B). 実施の形態１を示す図で、配線長を変化したときのＦＥＴ電圧Ｖ（Ｃ）、始動パルス電圧Ｖ（Ｂ）の測定結果を示す図である。It is a figure which shows Embodiment 1, and is a figure which shows the measurement result of FET voltage V (C) when the wiring length is changed, and starting pulse voltage V (B). 実施の形態１を示す図で、始動パルス発生回路の詳細図である。FIG. 3 is a diagram illustrating the first embodiment and is a detailed diagram of a start pulse generating circuit. 従来の高圧放電灯点灯装置を示すブロック図である。It is a block diagram which shows the conventional high pressure discharge lamp lighting device. 従来の始動パルス発生回路７の詳細図である。FIG. 7 is a detailed view of a conventional start pulse generation circuit 7. 従来の高圧放電灯点灯装置の出力配線長と始動パルス電圧の関係を示す図である。It is a figure which shows the relationship between the output wiring length of the conventional high pressure discharge lamp lighting device, and a starting pulse voltage.

符号の説明Explanation of symbols

１ 商用電源、２ 整流回路、３ 昇圧インバーター、４ 降圧インバーター、５ 電流検出抵抗、６ 矩形波回路、７ 始動パルス発生回路、８ 高圧放電灯、９ 制御回路、１０ 制御電源回路、１１ 電圧分割回路、１２ パルス検出回路。   DESCRIPTION OF SYMBOLS 1 Commercial power supply, 2 Rectifier circuit, 3 Boost inverter, 4 Buck inverter, 5 Current detection resistor, 6 Square wave circuit, 7 Start pulse generation circuit, 8 High pressure discharge lamp, 9 Control circuit, 10 Control power supply circuit, 11 Voltage division circuit , 12 Pulse detection circuit.

Claims (4)

高圧放電灯と、この高圧放電灯に始動用高電圧を供給する始動パルス発生回路と、この始動パルス発生回路を制御する制御回路とを備えた高圧放電灯点灯装置において、In a high pressure discharge lamp lighting device comprising a high pressure discharge lamp, a start pulse generating circuit for supplying a high voltage for starting to the high pressure discharge lamp, and a control circuit for controlling the start pulse generating circuit,
前記始動パルス発生回路は、The starting pulse generating circuit is
スイッチング素子のオン／オフにより発生するパルス電圧を昇圧するトランスと、A transformer that boosts a pulse voltage generated by turning on / off the switching element;
前記トランスに設けられる低電圧側の１次巻線と、A primary winding on a low voltage side provided in the transformer;
前記１次巻線に発生する電圧を検出して、前記制御回路にフィードバックするとともに、前記制御回路は前記トランスの昇圧後の電圧を所定値に維持することを特徴とする高圧放電灯点灯装置。A high pressure discharge lamp lighting device characterized in that a voltage generated in the primary winding is detected and fed back to the control circuit, and the control circuit maintains the boosted voltage of the transformer at a predetermined value. 高圧放電灯と、この高圧放電灯に始動用高電圧を供給する始動パルス発生回路と、この始動パルス発生回路を制御する制御回路とを備えた高圧放電灯点灯装置において、
前記始動パルス発生回路は、
スイッチング素子のオン／オフにより発生するパルス電圧を昇圧するトランスと、
このトランスに設けられたフィードバック電圧検出巻線と、
前記フィードバック電圧検出巻線に発生する電圧を検出し、前記制御回路にフィードバックするパルス検出回路とを備え、前記制御回路は、前記トランスの昇圧後の電圧を所定値に維持することを特徴とする高圧放電灯点灯装置。 In a high pressure discharge lamp lighting device comprising a high pressure discharge lamp, a start pulse generating circuit for supplying a high voltage for starting to the high pressure discharge lamp, and a control circuit for controlling the start pulse generating circuit,
The starting pulse generating circuit is
A transformer that boosts a pulse voltage generated by turning on / off the switching element;
A feedback voltage detection winding provided in the transformer;
It detected a voltage generated at the feedback voltage detection winding, and a pulse detection circuit that feeds back to the control circuit, the control circuit, and maintains the voltage after step-up of the transformer to a predetermined value High pressure discharge lamp lighting device. 前記１次巻線に発生する電圧または前記フィードバック電圧検出巻線に発生する電圧を分割する電圧分割回路を備えたことを特徴とする請求項１又は請求項２記載の高圧放電灯点灯装置。The high pressure discharge lamp lighting device according to claim 1 or 2, further comprising a voltage dividing circuit that divides a voltage generated in the primary winding or a voltage generated in the feedback voltage detection winding. 出力配線長を、１０ｍ以内とすることを特徴とする請求項１乃至３のいずれかに記載の高圧放電灯点灯装置。4. The high pressure discharge lamp lighting device according to claim 1, wherein the output wiring length is within 10 m.
JP2005236379A 2005-08-17 2005-08-17 High pressure discharge lamp lighting device Expired - Fee Related JP4759105B2 (en)

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EP20060781598 EP1916882B1 (en) 2005-08-17 2006-07-25 High-pressure discharge lamp operating device
KR1020087006305A KR101226179B1 (en) 2005-08-17 2006-07-25 High­pressure discharge lamp operating device
AU2006280899A AU2006280899B2 (en) 2005-08-17 2006-07-25 High-pressure discharge lamp operating device
CN2006800299426A CN101243729B (en) 2005-08-17 2006-07-25 High-pressure discharge lamp operating device
PCT/JP2006/314686 WO2007020776A1 (en) 2005-08-17 2006-07-25 High-pressure discharge lamp operating device

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