JPH11339982A - Discharge lamp lighting device - Google Patents

Discharge lamp lighting device

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Publication number
JPH11339982A
JPH11339982A JP14487398A JP14487398A JPH11339982A JP H11339982 A JPH11339982 A JP H11339982A JP 14487398 A JP14487398 A JP 14487398A JP 14487398 A JP14487398 A JP 14487398A JP H11339982 A JPH11339982 A JP H11339982A
Authority
JP
Japan
Prior art keywords
circuit
discharge lamp
power
power supply
pressure discharge
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.)
Withdrawn
Application number
JP14487398A
Other languages
Japanese (ja)
Inventor
Akira Yuufuku
晶 裕福
Noriyuki Fukumori
律之 福盛
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP14487398A priority Critical patent/JPH11339982A/en
Publication of JPH11339982A publication Critical patent/JPH11339982A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a discharge lamp lighting device capable of maintaining lighting of a high-pressure discharge lamp such as a high-pressure sodium lamp without generating a lighting failure in the case where service interruption is generated in an alternating current power source at a place where any emergency power source is not provided. SOLUTION: In the case where an alternating current power source V1 is turned on, a power converter circuit B2 is stopped by the output signal of a service interruption detecting circuit F, and a circuit formed of the alternating current power source V1, a power converter circuit B1 and a high-pressure discharge lamp LA stably lights the high-pressure discharge lamp LA. On the other hand, when the alternating current power source V1 is interrupted and the service interruption detecting circuit F detects it, the power converter circuit B2 is operated by the detecting signal of the service interruption detecting circuit F, and a circuit formed of a battery V2, the power converter circuit B2, and the high-pressure discharge lamp LA stably lights the high-pressure discharge lamp LA. During a period from the time when the power converter circuit B2 is operated after the service interruption is generated in the alternating current power source V1 till the time when the output of the power converter circuit B2 achieves the predetermined value capable of maintaining lighting of the high-pressure discharge lamp LA, lighting of the high-pressure discharge lamp LA is maintained by a lighting failure preventing means X included in the power converter circuit B1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、高圧ナトリウムラ
ンプ、メタルハライドランプなどの高圧放電灯を点灯さ
せる放電灯点灯装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device for lighting a high pressure discharge lamp such as a high pressure sodium lamp and a metal halide lamp.

【０００２】[0002]

【従来の技術】トンネル内の照明の光源として一般的に
ナトリウムランプが使われている。しかし、停電により
交流電源（商用電源）から点灯装置への電力の供給が断
たれた場合、照明が消えてしまうので、走行する車にと
っては非常に危険である。2. Description of the Related Art A sodium lamp is generally used as a light source for illuminating a tunnel. However, when power supply from the AC power supply (commercial power supply) to the lighting device is cut off due to a power failure, the lighting is turned off, which is extremely dangerous for a traveling vehicle.

【０００３】この種の危険を回避するために、高速道路
などの大型のトンネルでは、トンネル毎に非常用の電源
を設けてあり、交流電源（商用電源）の停電時には照明
器具の電源回路ごと非常用の電源に切り替え、再点灯す
る方法が採られている。ところで、従来のトンネル内の
照明の光源としては低圧ナトリウムランプが主流であ
り、停電で一旦消灯しても非常用電源に切り替わると即
座に再点灯する。In order to avoid this kind of danger, in large tunnels such as highways, an emergency power supply is provided for each tunnel. The method is switched to a power supply for use and turned on again. By the way, a low-pressure sodium lamp is mainly used as a conventional light source for lighting in a tunnel. Even if the lamp is turned off due to a power outage, the lamp is immediately turned on again when switched to an emergency power supply.

【０００４】しかし、近年では、トンネル内をＴＶカメ
ラで監視する等の理由で、光源として、低圧ナトリウム
ランプの替わりに、より演色性の高い高圧ナトリウムラ
ンプを用いるようになってきている。However, in recent years, a high-pressure sodium lamp with higher color rendering properties has been used as a light source instead of a low-pressure sodium lamp, for example, for monitoring the inside of a tunnel with a TV camera.

【０００５】高圧ナトリウムランプは、低圧ナトリウム
ランプと異なり一般的にランプの始動に２０００〜５０
００Ｖ程度の高圧パルス電圧が必要で、さらに通常点灯
後消灯し瞬時に再点灯するには、１０〜５０ｋＶ程度の
高圧パルス電圧が必要である。[0005] Unlike high-pressure sodium lamps, high-pressure sodium lamps generally require 2000 to 50 lamps to start the lamp.
A high-voltage pulse voltage of about 00 V is required, and a high-voltage pulse voltage of about 10 to 50 kV is required to turn off the light after normal lighting and then immediately turn it on again.

【０００６】そこで、第１の従来例として、図１６に示
すような、高圧ナトリウムランプ用の瞬時再点灯型の点
灯装置がある。Therefore, as a first conventional example, there is an instantaneously relighting type lighting device for a high pressure sodium lamp as shown in FIG.

【０００７】インダクタンス要素Ｌ１１とコンデンサＣ
１１からなる銅鉄式安定器ＢＬの出力端にパルストラン
スＴ１１，電圧応答性スイッチＱ１１，コンデンサＣ１
２，Ｃ１３からなる低圧パルス電圧発生のイグナイタＩ
Ｇ１を接続し、イグナイタＩＧ１の出力端にパルストラ
ンスＴ１２，電圧応答性スイッチＱ１２，コンデンサＣ
１４，抵抗Ｒ１１からなる高圧パルス電圧発生のイグナ
イタＩＧ２を接続する。イグナイタＩＧ１は数ｋＶのパ
ルス電圧を発生し、このパルス電圧を電源としイグナイ
タＩＧ２で数十ｋＶのパルス電圧を発生するので、高圧
ナトリウムランプＬＡが立ち消えした場合にも、瞬時に
再点灯することができる。[0007] Inductance element L11 and capacitor C
A pulse transformer T11, a voltage-responsive switch Q11, a capacitor C1
Igniter I for generating low-voltage pulse voltage composed of C2 and C13
G1, and a pulse transformer T12, a voltage responsive switch Q12, and a capacitor C are connected to the output terminal of the igniter IG1.
14. An igniter IG2 for generating a high-voltage pulse composed of a resistor R11 is connected. The igniter IG1 generates a pulse voltage of several kV, and the igniter IG2 generates a pulse voltage of several tens kV using the pulse voltage as a power source. Therefore, even if the high-pressure sodium lamp LA goes out, it can be instantly re-lit. it can.

【０００８】しかしながら、前述のような大型のトンネ
ル以外の多くの一般トンネルは、トンネルごとの非常用
電源が設けられていないため、図１６の点灯装置では交
流電源（商用電源）Ｖ１の停電時に再点灯することがで
きない。However, many ordinary tunnels other than the large-sized tunnels described above do not have an emergency power supply for each tunnel. Therefore, the lighting device shown in FIG. Can not be lit.

【０００９】そこで、第２の従来例として、図１７に示
すような高圧放電灯点灯装置がある。Therefore, as a second conventional example, there is a high pressure discharge lamp lighting device as shown in FIG.

【００１０】交流電源Ｖ１から入力端子ＴＭ１，ＴＭ２
を介し、後述する切替回路Ｘ１を接続する。切替回路Ｘ
１の出力端に電力変換回路Ｂ１を接続し、電力変換回路
Ｂ１の出力端に高圧放電灯ＬＡの始動時に数十ｋＶの高
圧パルス電圧を高圧放電灯ＬＡに印加する瞬時再始動用
のイグナイタＩＧ１を接続しており、交流電源Ｖ１の通
電時には電力変換回路Ｂ１により高圧ナトリウムランプ
のような高圧放電灯ＬＡを安定に点灯する。The input terminals TM1 and TM2 are supplied from the AC power supply V1.
, A switching circuit X1 described later is connected. Switching circuit X
1 is connected to the output terminal of the power conversion circuit B1, and an igniter IG1 for instantaneous restart that applies a high-voltage pulse voltage of several tens of kV to the high-pressure discharge lamp LA when starting the high-pressure discharge lamp LA is connected to the output terminal of the power conversion circuit B1. Is connected, and the high-pressure discharge lamp LA such as a high-pressure sodium lamp is stably turned on by the power conversion circuit B1 when the AC power supply V1 is energized.

【００１１】また、電池Ｖ２には電池接続端子ＴＭ３，
ＴＭ４を介して電池Ｖ２を電源として高圧放電灯ＬＡを
点灯する電力変換回路Ｂ２を接続し、電力変換回路Ｂ２
の出力端をイグナイタＩＧ１の入力端に接続している。
さらに、電池接続端子ＴＭ３，ＴＭ４を介して後述の切
替回路Ｘ２を接続し、切替回路Ｘ２の出力端に、電力変
換回路Ｂ２の制御回路Ｍ２を接続している。The battery V2 has a battery connection terminal TM3,
A power conversion circuit B2 for turning on the high-pressure discharge lamp LA using the battery V2 as a power source is connected via the TM4 to the power conversion circuit B2.
Is connected to the input terminal of the igniter IG1.
Further, a switching circuit X2 described later is connected via the battery connection terminals TM3 and TM4, and a control circuit M2 of the power conversion circuit B2 is connected to an output terminal of the switching circuit X2.

【００１２】また、交流電源Ｖ１には、入力端子ＴＭ
１、ＴＭ２を介して、交流電源Ｖ１の停電を検出する停
電検出回路Ｆを接続している。上述の切替回路Ｘ１、Ｘ
２は、停電検出回路Ｆの出力信号により閉成あるいは開
放される。An AC power supply V1 has an input terminal TM.
1. A power failure detection circuit F for detecting a power failure of the AC power supply V1 is connected via TM2. The above switching circuits X1, X
2 is closed or opened by the output signal of the power failure detection circuit F.

【００１３】本従来例では、交流電源Ｖ１の通電時に
は、切替回路Ｘ１を閉成し、切替回路Ｘ２を開放するこ
とにより、交流電源Ｖ１、切替回路Ｘ１、電力変換回路
Ｂ１、イグナイタＩＧ１、高圧放電灯ＬＡにより構成さ
れる回路（交流電源通電回路）で高圧放電灯ＬＡを安定
に点灯させる。In this conventional example, when the AC power supply V1 is energized, the switching circuit X1 is closed and the switching circuit X2 is opened to open the AC power supply V1, the switching circuit X1, the power conversion circuit B1, the igniter IG1, and the high-voltage discharger. The high-pressure discharge lamp LA is stably turned on by a circuit (AC power supply circuit) constituted by the electric lamp LA.

【００１４】一方、交流電源Ｖ１が停電して、停電検出
回路Ｆが停電を検出すると、停電検出回路Ｆの検出信号
により切替回路Ｘ１が開放されて切替回路Ｘ２が閉成さ
れ、電池Ｖ２、電力変換回路Ｂ２、イグナイタＩＧ１、
高圧放電灯ＬＡ、切替回路Ｘ２、制御回路Ｍ２からなる
回路（交流電源停電回路）で高圧放電灯ＬＡを安定に点
灯させる。On the other hand, when the AC power supply V1 loses power and the power failure detection circuit F detects a power failure, the switching circuit X1 is opened and the switching circuit X2 is closed by the detection signal of the power failure detection circuit F, and the battery V2 and the power Conversion circuit B2, igniter IG1,
The high-pressure discharge lamp LA is stably lit by a circuit (AC power failure circuit) including the high-pressure discharge lamp LA, the switching circuit X2, and the control circuit M2.

【００１５】以上のような構成によって、非常用の電源
のないトンネルなどで商用電源が停電した場合でも、電
池Ｖ２を電源として高圧放電灯ＬＡを瞬時に再点灯し、
点灯維持することができる。その結果、商用電源の停電
時にも車の走行などに支障のない照度を確保することが
可能となる。With the above configuration, even when a commercial power supply is interrupted in a tunnel or the like where there is no emergency power supply, the high-pressure discharge lamp LA is instantaneously relighted using the battery V2 as a power supply.
The lighting can be maintained. As a result, it is possible to secure an illuminance that does not hinder the running of the vehicle even when the commercial power supply stops.

【００１６】[0016]

【発明が解決しようとする課題】しかしながら、図１７
のような高圧放電灯点灯装置では、商用電源である交流
電源Ｖ１が停電した場合に数十ｋＶの高圧パルス電圧を
発生して瞬時に再点灯できるが、再始動までの間、一瞬
高圧放電灯ＬＡが消えてしまう。さらに、このような瞬
時再始動型の点灯装置はサイズが大きく、コスト的にも
不利である。However, FIG.
The high-pressure discharge lamp lighting device described above generates a high-voltage pulse voltage of several tens of kV when the AC power supply V1, which is a commercial power supply, fails, and can be re-lit instantaneously. LA disappears. Further, such an instant restart type lighting device is large in size and disadvantageous in cost.

【００１７】本発明は上記事由に鑑みてなされたもので
あり、その目的は、非常用の電源がない場所で、交流電
源の停電時に高圧ナトリウムランプなどの高圧放電灯を
立ち消えさせることなく点灯維持できる放電灯点灯装置
を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to maintain the lighting of a high-pressure discharge lamp such as a high-pressure sodium lamp without extinguishing when an AC power supply fails in a place where there is no emergency power supply. It is to provide a discharge lamp lighting device that can be used.

【００１８】[0018]

【課題を解決するための手段】上述の目的を達成するた
めに、請求項１の発明では、交流電源に接続される第１
の電力変換回路と、第１の電力変換回路の出力端に接続
される高圧放電灯と、電池と、該電池を電源とし出力端
が第１の電力変換回路の出力端に接続され、高圧放電灯
を点灯するための電力を供給する第２の電力変換回路と
からなり、交流電源通電時は交流電源と、第１の電力変
換回路により高圧放電灯を点灯し、交流電源停電時には
電池と、第２の電力変換回路により高圧放電灯を点灯す
るように切り替える放電灯点灯装置において、上記切り
替えの際に高圧放電灯が立ち消えするのを防止する立消
え防止手段を設けたことを特徴とするもので、非常用電
源のないトンネルなどで商用電源が停電した場合でも、
高圧放電灯を立消えさせることなく電池を電源とした点
灯回路に切り替わり、点灯維持することができる。In order to achieve the above-mentioned object, according to the first aspect of the present invention, a first power supply connected to an AC power supply is provided.
A power conversion circuit, a high-pressure discharge lamp connected to the output terminal of the first power conversion circuit, a battery, and the battery-powered output terminal connected to the output terminal of the first power conversion circuit. A second power conversion circuit for supplying power for lighting the electric lamp; an AC power supply when the AC power supply is turned on; a high-pressure discharge lamp that is turned on by the first power conversion circuit; and a battery when the AC power supply fails, A discharge lamp lighting device for switching a high-pressure discharge lamp to be turned on by a second power conversion circuit, characterized in that there is provided extinguishing prevention means for preventing the high-pressure discharge lamp from extinguishing at the time of the switching. , Even in the event of a commercial power failure in a tunnel without emergency power,
The high-intensity discharge lamp can be switched to a lighting circuit using a battery as a power source without extinguishing the high-pressure discharge lamp, and the lighting can be maintained.

【００１９】請求項２の発明では、請求項１の発明にお
いて、上記立消え防止手段は、少なくとも第１の電力変
換回路から第２の電力変換回路へ切り替える間高圧放電
灯を点灯維持できるエネルギを持つ電力蓄積手段を有す
るので、交流電源が停電しても、高圧放電灯を立消えさ
せることなく電池による電力変換回路に切り替わり、高
圧放電灯を点灯維持できる。According to a second aspect of the present invention, in the first aspect of the present invention, the extinction prevention means has an energy capable of maintaining lighting of the high-pressure discharge lamp at least during switching from the first power conversion circuit to the second power conversion circuit. Since the power storage means is provided, even if the AC power supply fails, the high-pressure discharge lamp can be switched to a power conversion circuit using a battery without extinguishing the high-pressure discharge lamp, and the high-pressure discharge lamp can be kept on.

【００２０】請求項３の発明では、請求項１又は請求項
２の発明において、上記立消え防止手段は、切り替え時
に高圧放電灯の消費電力を低減することを特徴とするも
ので、請求項１乃至２の発明と同様の作用を為すととも
に、電力蓄積手段の容量を低減することができる。According to a third aspect of the present invention, in the first or second aspect of the present invention, the extinction preventing means reduces power consumption of the high pressure discharge lamp at the time of switching. The same operation as that of the second invention can be performed, and the capacity of the power storage means can be reduced.

【００２１】請求項４の発明では、請求項１乃至３の何
れかの発明において、上記立消え防止手段は、切り替え
時に高圧放電灯を高周波点灯することを特徴とするもの
で、高圧放電灯の再点弧電圧の発生を抑制でき、その結
果立消えを防止できる。According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the extinction prevention means turns on the high-pressure discharge lamp at a high frequency when switching. Generation of the ignition voltage can be suppressed, and as a result, extinction can be prevented.

【００２２】請求項５の発明では、請求項１乃至３の何
れかの発明において、上記立消え防止手段は、切り替え
時に高圧放電灯を直流点灯することを特徴とするもの
で、高圧放電灯の再点弧電圧の発生を抑制でき、その結
果立消えを防止できる。According to a fifth aspect of the present invention, in any one of the first to third aspects of the present invention, the extinction prevention means turns on the high-pressure discharge lamp by DC at the time of switching. Generation of the ignition voltage can be suppressed, and as a result, extinction can be prevented.

【００２３】請求項６の発明では、請求項１乃至５の何
れかの発明において、上記第１の電力変換回路は、第１
の昇圧回路と、第１の昇圧回路の出力端に接続された第
１の電力蓄積手段と、第１の電力蓄積手段に接続された
第１の限流回路からなり、第２の電力変換回路は、第２
の昇圧回路と、第２の昇圧回路の出力端に接続された第
２の電力蓄積手段と、第２の電力蓄積手段に接続された
第２の限流回路から成ることを特徴とするもので、請求
項１乃至５の発明と同様の作用を為すとともに、商用電
源通電時、停電時ともに高圧放電灯を安定に点灯させる
ことができる。According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the first power conversion circuit comprises a first power conversion circuit.
, A first power storage means connected to the output terminal of the first booster circuit, and a first current limiting circuit connected to the first power storage means. Is the second
, A second power storage means connected to the output terminal of the second booster circuit, and a second current limiting circuit connected to the second power storage means. In addition to performing the same operation as the first to fifth aspects of the present invention, the high-pressure discharge lamp can be stably turned on both when the commercial power is turned on and when the power is cut off.

【００２４】請求項７の発明では、請求項６の発明にお
いて、第１の電力蓄積手段と第２の電力蓄積手段を共用
し、第１の限流回路と第２の限流回路を共用したことを
特徴とするもので、部品点数を削減することができ、小
型化及び低コスト化を図ることができる。According to a seventh aspect of the present invention, in the sixth aspect of the invention, the first power storage means and the second power storage means are shared, and the first current limiting circuit and the second current limiting circuit are shared. The number of parts can be reduced, and downsizing and cost reduction can be achieved.

【００２５】請求項８の発明では、請求項７の発明にお
いて、第１の昇圧回路と第２の昇圧回路の各出力端に、
コンデンサを付加したことを特徴とするもので、第１の
昇圧回路の出力端と第２の昇圧回路の出力端の間に高周
波成分が重畳するのを防ぐことができる。According to an eighth aspect of the present invention, in the seventh aspect of the present invention, each output terminal of the first booster circuit and the second booster circuit has
It is characterized by adding a capacitor, and can prevent high frequency components from being superimposed between the output terminal of the first booster circuit and the output terminal of the second booster circuit.

【００２６】請求項９の発明では、請求項６乃至８の何
れかの発明において、電池を充電するための充電回路を
有し、充電回路の電源は第１の限流回路に含まれたイン
ダクタンス素子の二次巻線から供給することを特徴とす
るもので、電源トランスなどを用いずに充電回路を構成
することができ、小型化及び低コスト化を図ることがで
きる。According to a ninth aspect of the present invention, in any one of the sixth to eighth aspects of the present invention, there is provided a charging circuit for charging a battery, wherein a power source of the charging circuit is an inductance included in the first current limiting circuit. It is characterized by being supplied from the secondary winding of the element, so that a charging circuit can be formed without using a power transformer or the like, and miniaturization and cost reduction can be achieved.

【００２７】請求項１０の発明では、請求項６乃至８の
何れかの発明において、電池を充電するための充電回路
を有し、充電回路の電源を、第１の限流回路に含まれた
インダクタンス素子の二次巻線から供給し、交流電源停
電時は充電を停止するように切り替えるための切替回路
を設けたことを特徴とするもので、請求項９の発明と同
様な作用を為すとともに、請求項９の発明に比べ、電池
の放電エネルギを低減することができる。According to a tenth aspect of the present invention, in any one of the sixth to eighth aspects of the present invention, there is provided a charging circuit for charging a battery, wherein a power supply of the charging circuit is included in the first current limiting circuit. A switching circuit for supplying from the secondary winding of the inductance element and switching to stop charging when the AC power is cut off is provided, and performs the same operation as the invention of claim 9. The discharge energy of the battery can be reduced as compared with the ninth aspect.

【００２８】請求項１１の発明では、請求項６乃至８の
何れかの発明において、電池を充電するための充電回路
を有し、充電回路の電源は第１の昇圧回路に含まれたイ
ンダクタンス素子の二次巻線から供給することを特徴と
するもので、請求項９の発明と同様に小型化及び低コス
ト化を図ることができる。According to an eleventh aspect of the present invention, in any one of the sixth to eighth aspects of the present invention, there is provided a charging circuit for charging a battery, wherein a power supply of the charging circuit is an inductance element included in the first booster circuit. In this case, the size is reduced and the cost is reduced as in the ninth aspect.

【００２９】請求項１２の発明では、請求項９又は１０
の発明において、第２の昇圧回路の制御電源を、充電回
路の電源と共用したことを特徴とするもので、第１の電
力変換回路と第２の電力変換回路の間の渡り線の本数を
低減することができる。According to the twelfth aspect, the ninth or tenth aspect is provided.
In the invention, the control power supply of the second booster circuit is shared with the power supply of the charging circuit, and the number of crossover lines between the first power conversion circuit and the second power conversion circuit is reduced. Can be reduced.

【００３０】請求項１３の発明では、請求項６乃至１２
の何れの発明において、第２の昇圧回路の出力電圧を第
１の昇圧回路の出力電圧よりも低く設定し、交流電源通
電時に第１の昇圧回路と第２の昇圧回路の双方を動作さ
せることを特徴とするもので、商用電源通電時には第２
の昇圧回路を停止させ、商用電源停電時には第２の昇圧
回路を動作させるように切り替えるための切替回路や、
商用電源の停電を検出する停電検出回路が不要となり、
部品点数を削減することができ、小型化及び低コスト化
を図ることができる。According to the thirteenth aspect, the sixth to twelfth aspects are described.
In any of the inventions, the output voltage of the second booster circuit is set lower than the output voltage of the first booster circuit, and both the first booster circuit and the second booster circuit are operated when the AC power is supplied. When commercial power is supplied, the second
A switching circuit for stopping the step-up circuit of the power supply and switching to operate the second step-up circuit in the event of a commercial power failure,
A power failure detection circuit for detecting a commercial power failure is not required,
The number of parts can be reduced, and downsizing and cost reduction can be achieved.

【００３１】請求項１４の発明では、請求項６乃至１２
の何れの発明において、第２の昇圧回路の出力電圧を第
１の昇圧回路の出力電圧よりも低く設定した状態で第１
の昇圧回路と第２の昇圧回路の双方を動作させ、交流電
源停電時は、第１の昇圧回路の出力電圧より低い第２の
昇圧回路の出力電圧でも交流電源通電時と同様の出力電
力が得られるように第１の限流回路を制御することを特
徴とするもので、請求項１３の発明と同様に部品点数を
削減しつつ、商用電源停電時に、請求項１３の発明に比
べ、より高い出力電力を得ることができる。According to the fourteenth aspect of the present invention, there is provided the sixth to twelfth aspects.
In any of the inventions described above, the first booster circuit may be configured such that the output voltage of the second booster circuit is set lower than the output voltage of the first booster circuit.
Both the booster circuit and the second booster circuit are operated, and at the time of AC power failure, the same output power as at the time of AC power supply is supplied even at the output voltage of the second booster circuit lower than the output voltage of the first booster circuit. The first current limiting circuit is controlled so as to be obtained, and the number of components is reduced in the same manner as in the thirteenth aspect, and at the time of a commercial power outage, High output power can be obtained.

【００３２】[0032]

【発明の実施の形態】（実施形態１）図１に本実施形態
の放電灯点灯装置の回路ブロック図を示す。(Embodiment 1) FIG. 1 shows a circuit block diagram of a discharge lamp lighting device according to this embodiment.

【００３３】本実施形態では、図１に示すように、商用
電源よりなる交流電源Ｖ１に入力端子ＴＭ１，ＴＭ２を
介して、高圧ナトリウムランプのような高圧放電灯ＬＡ
を安定に点灯させるための電力変換回路Ｂ１を接続して
いる。In this embodiment, as shown in FIG. 1, a high-pressure discharge lamp LA such as a high-pressure sodium lamp is connected to an AC power supply V1 composed of a commercial power supply via input terminals TM1 and TM2.
Is connected to a power conversion circuit B1 for stably turning on.

【００３４】また、２次電池等の電池電源（以下電池と
称する）Ｖ２には、ＴＭ３，ＴＭ４を介して電力変換回
路Ｂ２を接続し、電力変換回路Ｂ２の出力端を電力変換
回路Ｂ１の出力端に接続している。さらに、交流電源Ｖ
１には、入力端子ＴＭ１、ＴＭ２を介して、交流電源Ｖ
１の停電を検出して後述の切替回路Ｘ２に信号を伝える
停電検出回路Ｆを接続している。切替回路Ｘ２は、停電
検出回路Ｆの信号を受けて、電力変換回路Ｂ２の制御回
路ＢＣ２を動作あるいは停止させる。以上により、上述
の電力変換回路Ｂ２は、停電検出回路Ｆの出力信号によ
り動作あるいは停止される。A power conversion circuit B2 is connected to a battery power supply (hereinafter referred to as a battery) V2 such as a secondary battery via TM3 and TM4, and the output terminal of the power conversion circuit B2 is connected to the output of the power conversion circuit B1. Connected to the end. Further, the AC power supply V
1 is connected to an AC power supply V via input terminals TM1 and TM2.
1 is connected to a power failure detection circuit F that detects a power failure and transmits a signal to a switching circuit X2 described later. The switching circuit X2 receives the signal of the power failure detection circuit F and operates or stops the control circuit BC2 of the power conversion circuit B2. As described above, the above-described power conversion circuit B2 is operated or stopped by the output signal of the power failure detection circuit F.

【００３５】本実施形態では、交流電源Ｖ１の通電時に
は、停電検出回路Ｆの出力信号を受けた切替回路Ｘ２の
働きにより制御回路ＢＣ２が動作せず、そのため電力変
換回路Ｂ２は停止しており、交流電源Ｖ１、電力変換回
路Ｂ１、高圧放電灯ＬＡにより構成される回路（交流電
源通電回路）で高圧放電灯ＬＡを安定に点灯させる。In the present embodiment, when the AC power supply V1 is energized, the control circuit BC2 does not operate due to the function of the switching circuit X2 which has received the output signal of the power failure detection circuit F, so that the power conversion circuit B2 is stopped. The high-pressure discharge lamp LA is stably turned on by a circuit (AC power supply circuit) including the AC power supply V1, the power conversion circuit B1, and the high-pressure discharge lamp LA.

【００３６】一方、交流電源Ｖ１が停電して、停電検出
回路Ｆが停電を検出すると、停電検出回路Ｆの検出信号
を受けた切替回路Ｘ２の働きにより制御回路ＢＣ２が電
力変換回路Ｂ２を動作させ、電池Ｖ２、電力変換回路Ｂ
２、高圧放電灯ＬＡから構成される回路（交流電源停電
回路）で高圧放電灯ＬＡを安定に点灯させる。ここで、
交流電源Ｖ１が停電してから電力変換回路Ｂ２が動作し
始め、電力変換回路Ｂ２の出力が高圧放電灯ＬＡを点灯
維持できる所定値に達するまでの期間は、電力変換回路
Ｂ１に含まれる立消え防止手段Ｘにより高圧放電灯ＬＡ
を点灯維持させる。On the other hand, when the AC power supply V1 loses power and the power failure detection circuit F detects a power failure, the control circuit BC2 activates the power conversion circuit B2 by the operation of the switching circuit X2 receiving the detection signal of the power failure detection circuit F. , Battery V2, power conversion circuit B
2. The high-pressure discharge lamp LA is stably turned on by a circuit (AC power failure circuit) composed of the high-pressure discharge lamp LA. here,
During the period from the power failure of the AC power supply V1 to the start of the operation of the power conversion circuit B2 until the output of the power conversion circuit B2 reaches a predetermined value at which the high-pressure discharge lamp LA can be maintained, the extinction prevention included in the power conversion circuit B1 is prevented. High pressure discharge lamp LA by means X
Is kept on.

【００３７】（実施形態２）本実施形態は図２に示すよ
うに、図１の回路構成において、電力変換回路Ｂ１を昇
圧回路Ｇ１と限流回路Ｈ１とフィルタ回路Ｉと高圧放電
灯ＬＡに印加する電圧の極性を交番させる極性反転回路
Ｊとで構成し、電力変換回路Ｂ２を昇圧回路Ｇ２と限流
回路Ｈ２とフィルタ回路Ｉと極性反転回路Ｊとで構成
し、立消え防止手段として昇圧回路Ｇ１の出力端に電解
コンデンサＣ１を付加し、同様に昇圧回路Ｇ２の出力端
に電解コンデンサＣ２を付加して、限流回路Ｈ１の出力
端と限流回路Ｈ２の出力端を接続して、限流回路Ｈ１の
出力端と高圧放電灯ＬＡとの間に極性反転回路Ｊを接続
したもので、両電力変換回路Ｂ１，Ｂ２でフィルタ回路
Ｉと極性反転回路Ｊとを共用している。(Embodiment 2) In this embodiment, as shown in FIG. 2, the power conversion circuit B1 is applied to the booster circuit G1, the current limiting circuit H1, the filter circuit I, and the high pressure discharge lamp LA in the circuit configuration of FIG. The power conversion circuit B2 is composed of a booster circuit G2, a current limiting circuit H2, a filter circuit I, and a polarity inversion circuit J, and the booster circuit G1 is used as a extinction preventing means. , An electrolytic capacitor C1 is added to the output terminal of the booster circuit G2, and an electrolytic capacitor C2 is similarly added to the output terminal of the booster circuit G2, and the output terminal of the current limiting circuit H1 and the output terminal of the current limiting circuit H2 are connected. A polarity inversion circuit J is connected between the output terminal of the circuit H1 and the high-pressure discharge lamp LA, and the power conversion circuits B1 and B2 share the filter circuit I and the polarity inversion circuit J.

【００３８】本実施形態では、交流電源Ｖ１の通電時に
は、停電検出回路Ｆの出力信号を受けた切替回路Ｘ２の
働きにより制御回路ＢＣ２が動作せず、そのためにより
昇圧回路Ｇ２および限流回路Ｈ２は停止しており、交流
電源Ｖ１、昇圧回路Ｇ１、電解コンデンサＣ１、限流回
路Ｈ１、フィルタ回路Ｉ、極性反転回路Ｊ、高圧放電灯
ＬＡにより構成される回路（交流電源通電回路）で高圧
放電灯ＬＡを安定に点灯させる。In the present embodiment, when the AC power supply V1 is energized, the control circuit BC2 does not operate due to the function of the switching circuit X2 that has received the output signal of the power failure detection circuit F. Therefore, the boosting circuit G2 and the current limiting circuit H2 It is stopped, and is a circuit (AC power supply circuit) composed of an AC power supply V1, a booster circuit G1, an electrolytic capacitor C1, a current limiting circuit H1, a filter circuit I, a polarity inversion circuit J, and a high pressure discharge lamp LA. Light the LA stably.

【００３９】一方、交流電源Ｖ１が停電して、停電検出
回路Ｆが停電を検出すると、停電検出回路Ｆの検出信号
を受けた切替回路Ｘ２の働きにより制御回路ＢＣ２が動
作し、それにより電力変換回路Ｂ２の昇圧回路Ｇ２およ
び限流回路Ｈ２が動作し、電池Ｖ２、昇圧回路Ｇ２、電
解コンデンサＣ２、限流回路Ｈ２、フィルタ回路Ｉ、極
性反転回路Ｊ、高圧放電灯ＬＡから構成される回路（交
流電源停電回路）で高圧放電灯ＬＡを安定に点灯させ
る。On the other hand, when the AC power supply V1 loses power and the power failure detection circuit F detects a power failure, the control circuit BC2 operates by the operation of the switching circuit X2 which has received the detection signal of the power failure detection circuit F, and thereby the power conversion is performed. The boosting circuit G2 and the current limiting circuit H2 of the circuit B2 operate, and a circuit (the battery V2, the boosting circuit G2, the electrolytic capacitor C2, the current limiting circuit H2, the filter circuit I, the polarity inverting circuit J, and the high-pressure discharge lamp LA) The high-pressure discharge lamp LA is stably turned on by an AC power supply interruption circuit.

【００４０】本実施形態では、交流電源Ｖ１が停電し
て、交流電源通電回路から交流電源停電回路に切り替わ
るまでの期間は、電解コンデンサＣ１、限流回路Ｈ１、
フィルタ回路Ｉおよび極性反転回路Ｊにより高圧放電灯
ＬＡを点灯維持させる。ここで、切替に要する時間を
ｔ、切替の期間に限流回路Ｈ１と極性反転回路Ｊと高圧
放電灯ＬＡとが消費する電力の実効値をＷとし、さらに
昇圧回路Ｇ１の出力電圧をＶＤＣ１、昇圧回路Ｇ１の出
力電圧に要求される、高圧放電灯ＬＡの点灯維持に必要
な最低電圧をＶＤＣ１´とすると、電解コンデンサＣ１
の容量は、２Ｗｔ／（ＶＤＣ１２−ＶＤＣ１´）2 以上
である必要がある。In the present embodiment, the electrolytic capacitor C1, the current limiting circuit H1, the current limiting circuit H1, and the AC power supply V1 are switched from the AC power supply circuit to the AC power supply interruption circuit.
The high-pressure discharge lamp LA is kept lit by the filter circuit I and the polarity inversion circuit J. Here, the time required for switching is t, the effective value of the power consumed by the current limiting circuit H1, the polarity inversion circuit J, and the high pressure discharge lamp LA during the switching period is W, and the output voltage of the booster circuit G1 is VDC1, Assuming that the minimum voltage required for the output voltage of the booster circuit G1 to maintain the lighting of the high-pressure discharge lamp LA is VDC1 ', the electrolytic capacitor C1
Needs to be 2 Wt / (VDC12−VDC1 ′) 2 or more.

【００４１】図３は、図２の回路構成において、昇圧回
路Ｇ１、Ｇ２をインダクタＬ１１，Ｌ２１，スイッチン
グ素子Ｑ１１，Ｑ２１、ダイオードＤ１１，Ｄ２１から
夫々なる昇圧チョッパ型の回路で構成し、限流回路Ｈ
１、Ｈ２をインダクタＬ１２，Ｌ２２，スイッチング素
子Ｑ１２，Ｑ２２、ダイオードＤ１２，Ｄ２２から夫々
なる降圧チョッパ型の回路で構成し、フィルタ回路Ｉを
インダクタンス素子Ｌ３とコンデンサＣ３で構成し、極
性反転回路Ｊを４石のスイッチング素子Ｓ１〜Ｓ４から
なるフルブリッジ回路で構成した具体構成を示してお
り、高圧放電灯ＬＡを低周波の略矩形波で安定に点灯さ
せる。なお図３においては各スイッチング素子を制御す
る制御回路は図示していないが、適宜な制御回路を用い
てスイッチング素子のスイッチング動作を制御するのは
言うまでもない。また交流電源Ｖ１はダイオードブリッ
ジＤＢにより全波整流され、該整流出力が停電検知回路
Ｆ及び電力変換回路Ｂ１に入力する。 （実施形態３）本実施形態は図４に示すように、図３の
回路構成において、交流電源通電回路から交流電源停電
回路に切り替わるまでの期間（切替の期間）に限流回路
Ｈ１の制御を変化させることにより、高圧放電灯ＬＡを
調光するようにしたものである。FIG. 3 shows a booster chopper type circuit comprising the inductors L11 and L21, switching elements Q11 and Q21, and diodes D11 and D21 in the circuit configuration of FIG. H
1, H2 is constituted by a step-down chopper type circuit including inductors L12, L22, switching elements Q12, Q22, and diodes D12, D22. Filter circuit I is constituted by inductance element L3 and capacitor C3, and polarity reversing circuit J is constituted. This shows a specific configuration constituted by a full bridge circuit including four switching elements S1 to S4, and stably lights the high-pressure discharge lamp LA with a low-frequency substantially rectangular wave. Although a control circuit for controlling each switching element is not shown in FIG. 3, it goes without saying that the switching operation of the switching element is controlled using an appropriate control circuit. The AC power supply V1 is full-wave rectified by the diode bridge DB, and the rectified output is input to the power failure detection circuit F and the power conversion circuit B1. (Embodiment 3) As shown in FIG. 4, in this embodiment, in the circuit configuration of FIG. 3, control of the current limiting circuit H1 is performed during a period (switching period) until switching from the AC power supply circuit to the AC power supply interruption circuit. The light intensity of the high-pressure discharge lamp LA is adjusted by changing the light intensity.

【００４２】つまり本実施形態において、切替回路Ｘ２
の出力と、コンパレータ５２の出力とを入力する排他的
オア５３を設けるとともに、また排他的オア５３の出力
信号が”Ｈ”のときのみ高圧放電灯ＬＡを調光するよう
に第１の限流回路Ｈ１を制御する制御回路ＢＣ１を設け
ている。排他的オア５３は二つの入力のうち一方だけ”
Ｈ”のときのみ”Ｈ”の信号を出力する。コンパレータ
５２は昇圧回路Ｇ２のスイッチング素子Ｑ２１に直列に
接続した検出抵抗Ｒ２１とコンデンサＣ５２との並列回
路の両端電圧と基準電圧Ｖref とを比較するものであ
る。That is, in the present embodiment, the switching circuit X2
And an exclusive OR 53 for inputting the output of the comparator 52 and the output of the comparator 52, and the first current limiting device controls the dimming of the high pressure discharge lamp LA only when the output signal of the exclusive OR 53 is "H". A control circuit BC1 for controlling the circuit H1 is provided. Exclusive OR 53 is only one of the two inputs "
The comparator 52 compares the reference voltage Vref with the voltage across the parallel circuit of the detection resistor R21 and the capacitor C52, which are connected in series to the switching element Q21 of the booster circuit G2, only when the signal is at H. Things.

【００４３】さて本実施形態の停電検出回路Ｆはダイオ
ードブリッジＤＢの整流出力電圧を抵抗Ｒ５１、Ｒ５２
で分圧し、その電圧をコンパレータ５１の反転入力端に
入力し、コンパレータ５１の非反転入力端に入力する基
準電圧と比較することにより停電の有無を検出するよう
にしたものであり、交流電源Ｖ１の通電時には検出信号
が”Ｌ”となる。基準電圧は電源回路（図示せず）によ
り出力される電源電圧Ｖｃｃを抵抗Ｒ５３，Ｒ５４で分
圧して得ている。Now, the power failure detection circuit F of the present embodiment converts the rectified output voltage of the diode bridge DB to the resistors R51 and R52.
, And the voltage is input to the inverting input terminal of the comparator 51 and compared with a reference voltage input to the non-inverting input terminal of the comparator 51 to detect the presence or absence of a power failure. When the power is supplied, the detection signal becomes "L". The reference voltage is obtained by dividing a power supply voltage Vcc output by a power supply circuit (not shown) by resistors R53 and R54.

【００４４】切替回路Ｘ２は停電検出回路Ｆの出力信号
の”Ｈ”、”Ｌ”でオン、オフするトランジスタＱ６２
と、トランジスタＱ６２のオン時にベース電流が流れて
オンするトランジスタＱ６３などから構成されている。The switching circuit X2 is a transistor Q62 which is turned on / off by the output signal "H" or "L" of the power failure detection circuit F.
And a transistor Q63 that is turned on when a base current flows when the transistor Q62 is turned on.

【００４５】而して、交流電源Ｖ１が通電していると
き、つまり停電検出回路Ｆの出力信号が””Ｌ”のと
き、切替回路Ｘ２ではトランジスタＱ６２がオフで、そ
のためトランジスタＱ６３がオフ状態となり、その出力
を”Ｌ”とする。When the AC power supply V1 is energized, that is, when the output signal of the power failure detection circuit F is "L", the transistor Q62 is off in the switching circuit X2, so that the transistor Q63 is off. , And its output is set to “L”.

【００４６】この出力が”Ｌ”のとき制御回路ＢＣ２は
動作せず、従って電力変換回路Ｂ２の昇圧回路Ｇ２の検
出抵抗Ｒ２１の両端電圧も”Ｌ”である。よって、コン
パレータ５２の出力も" Ｌ" であり、排他的オア５３の
出力も" Ｌ”である。したがって、制御回路ＢＣ１は高
圧放電灯ＬＡを調光するようには制御していない。この
状態で、交流電源Ｖ１が停電すると、停電検出回路Ｆの
検出信号が”Ｈ”となり、切替回路Ｘ２のトランジスタ
Ｑ６２がオンして、トランジスタＱ６３はベース電流が
流れてオンし、トランジスタＱ６３を介して電圧Ｖｃｃ
が切替回路Ｘ２の出力として出力されることになる。つ
まり切替回路Ｘ２の出力が”Ｈ”となる。従って制御回
路ＢＣ２が動作してその制御出力により、昇圧回路Ｇ２
が動作し始め、検出抵抗Ｒ２１の両端電圧が基準電圧Ｖ
ref よりも高くなるまではコンパレータ５２の出力は”
Ｌ”のままであるが、切替回路Ｘ２の出力を受けて排他
的オア５３の出力は”Ｈ”になる。よって、制御回路Ｂ
Ｃ１の制御信号を受けて電力変換回路Ｂ１は高圧放電灯
ＬＡのランプ電流を制限するように動作して調光制御す
る。この状態で、昇圧回路Ｇ２が完全に立ち上がり、検
出抵抗Ｒ２１の両端電圧が基準電圧Ｖref よりも高くな
ると、コンパレータ５２の出力がＨとなるので、排他的
オア５３の出力はふたたび”Ｌ”となって、制御回路Ｂ
Ｃ１が動作せず高圧放電灯ＬＡの調光制御が解除され
る。When this output is "L", the control circuit BC2 does not operate, so that the voltage across the detection resistor R21 of the booster circuit G2 of the power conversion circuit B2 is also "L". Therefore, the output of the comparator 52 is also "L", and the output of the exclusive OR 53 is also "L". Therefore, the control circuit BC1 does not control the dimming of the high-pressure discharge lamp LA. In this state, when the AC power supply V1 loses power, the detection signal of the power failure detection circuit F becomes "H", the transistor Q62 of the switching circuit X2 turns on, and the base current flows through the transistor Q63, and the transistor Q63 turns on. Voltage Vcc
Is output as the output of the switching circuit X2. That is, the output of the switching circuit X2 becomes “H”. Therefore, the control circuit BC2 operates and its control output causes the booster circuit G2
Starts operating, and the voltage across the detection resistor R21 becomes the reference voltage V
Until the voltage becomes higher than ref, the output of the comparator 52 is “
Although it remains at L, the output of the exclusive OR 53 becomes "H" in response to the output of the switching circuit X2.
Upon receiving the control signal of C1, the power conversion circuit B1 operates so as to limit the lamp current of the high-pressure discharge lamp LA and performs dimming control. In this state, when the booster circuit G2 completely rises and the voltage across the detection resistor R21 becomes higher than the reference voltage Vref, the output of the comparator 52 becomes H, and the output of the exclusive OR 53 becomes "L" again. And control circuit B
C1 does not operate, and the dimming control of the high-pressure discharge lamp LA is released.

【００４７】以上のような構成によれば、交流電源通電
回路から交流電源停電回路に切り替わる際に高圧放電灯
ＬＡで消費する電力を低減することができるので、図２
の実施形態よりも電解コンデンサＣ１、Ｃ２の容量を低
減することができる。 （実施形態４）本実施形態は立消え防止手段として、交
流電源通電回路から交流電源停電回路へ切り替わる際に
極性反転回路Ｊの制御を変化させることにより、高圧放
電灯ＬＡを高周波点灯させるようにしたもので、図５に
示す構成からなる。According to the above configuration, it is possible to reduce the power consumed by the high-pressure discharge lamp LA when switching from the AC power supply circuit to the AC power supply interruption circuit.
The capacitances of the electrolytic capacitors C1 and C2 can be reduced as compared with the embodiment. (Embodiment 4) In this embodiment, high-pressure discharge lamp LA is turned on at a high frequency by changing the control of polarity reversing circuit J when switching from an AC power supply circuit to an AC power supply interruption circuit as a means for preventing extinction. And has the configuration shown in FIG.

【００４８】実施形態３の図４の回路は排他的オア５３
の出力を受けて高圧放電灯ＬＡを調光制御するための制
御回路ＢＣ１を設けたものであるが、本実施形態では図
５に示すように排他的オア５３の出力が”Ｈ”のときの
み高圧放電灯ＬＡを高周波点灯するための制御回路ＪＣ
を設けた点で実施形態３と相違するものである。その他
の動作は実施形態３と同じである。The circuit of the third embodiment shown in FIG.
Is provided with a control circuit BC1 for controlling the dimming of the high-pressure discharge lamp LA in response to the output of the exclusive OR 53. In this embodiment, only when the output of the exclusive OR 53 is "H" as shown in FIG. Control circuit JC for high-frequency lighting of high-pressure discharge lamp LA
The third embodiment differs from the third embodiment in that the third embodiment is provided. Other operations are the same as those of the third embodiment.

【００４９】このように構成することにより、交流電源
通電回路から交流電源停電回路に切り替わる際に、再点
弧電圧の発生が抑制され、高圧放電灯ＬＡが立ち消えし
にくくなる。With this configuration, when switching from the AC power supply circuit to the AC power supply interruption circuit, the occurrence of the re-ignition voltage is suppressed, and the high-pressure discharge lamp LA is hardly extinguished.

【００５０】図６（ａ）は極性反転回路Ｊのスイッチン
グ素子Ｓ１，Ｓ４のスイッチング動作状態を、図６
（ｂ）は極性反転回路Ｊのスイッチング素子Ｓ２，Ｓ３
のスイッチング動作状態を夫々示しており、これらの図
から停電から交流電源停電回路が完全に立ち上がるまで
の切替期間では高周波で夫々がスイッチングして高圧放
電灯ＬＡを高周波点灯し、その他の期間では低周波でス
イッチングして高圧放電灯ＬＡを低周波の矩形波で点灯
させている状態が分かる。 （実施形態５）本実施形態は、立消え防止手段として、
交流電源通電回路から交流電源停電回路へ切り替わる際
に極性反転回路Ｊの制御を変化させることにより、高圧
放電灯ＬＡを直流点灯させるようにしたものである。回
路構成的には図７に示すように実施形態６の回路構成と
は同じ構成からなる。FIG. 6A shows the switching operation state of the switching elements S1 and S4 of the polarity inversion circuit J.
(B) Switching elements S2 and S3 of the polarity inversion circuit J
In these figures, the switching operation state is shown. From these figures, during the switching period from the power failure to the complete startup of the AC power failure circuit, each of them switches at a high frequency to turn on the high pressure discharge lamp LA at a high frequency, and at other times, the switching operation state is low. It can be seen that the high pressure discharge lamp LA is switched on at a low frequency and is lit with a low frequency rectangular wave. (Embodiment 5) In this embodiment, as a means for preventing extinction,
The control of the polarity inversion circuit J is changed at the time of switching from the AC power supply circuit to the AC power supply interruption circuit, so that the high-pressure discharge lamp LA is DC-lit. The circuit configuration is the same as that of the sixth embodiment as shown in FIG.

【００５１】而して本実施形態の、制御回路ＪＣは、排
他的オア５３の出力が”Ｈ”になると、図８（ａ）に示
すように停電時から交流電源停電回路が完全に立ち上が
る時点までの切替期間中極性斑点回路Ｊのスイッチング
素子Ｓ１，Ｓ４をオンさせ、図８（ｂ）に示すように同
期間スイッチング素子Ｓ２，Ｓ３をオフさせることによ
り高圧放電灯ＬＡを直流点灯するのである。When the output of the exclusive OR 53 becomes "H", the control circuit JC according to the present embodiment, as shown in FIG. By switching on the switching elements S1 and S4 of the polarity spot circuit J during the switching period up to and turning off the switching elements S2 and S3 for the same period as shown in FIG. .

【００５２】なおその他の動作は図４の実施形態４と同
じである。Other operations are the same as those of the fourth embodiment shown in FIG.

【００５３】このように構成することにより、交流電源
通電回路から交流電源停電回路に切り替わる際に、再点
弧電圧の発生が抑制され、高圧放電灯ＬＡが立ち消えし
にくくなる。 （実施形態６）本実施形態は、図９に示すように電力変
換回路Ｂ２の電解コンデンサＣ２及び限流回路Ｈ２を無
くして、電力変換回路Ｂ１の電解コンデンサＣ１及び限
流回路Ｈ１を電力変換回路Ｂ２で共用するようにしたも
のである。尚その他の回路構成は図３の回路構成に準ず
るもので、停電検出回路Ｆ、切替回路Ｘ２は図４の回路
に準ずる具体回路からなる。With this configuration, when switching from the AC power supply circuit to the AC power supply interruption circuit, the occurrence of the re-ignition voltage is suppressed, and the high-pressure discharge lamp LA is less likely to extinguish. (Embodiment 6) In this embodiment, as shown in FIG. 9, the electrolytic capacitor C2 and the current limiting circuit H2 of the power conversion circuit B2 are eliminated, and the electrolytic capacitor C1 and the current limiting circuit H1 of the power conversion circuit B1 are replaced with a power conversion circuit. This is shared by B2. The other circuit configuration is similar to the circuit configuration of FIG. 3, and the power failure detection circuit F and the switching circuit X2 are specific circuits similar to the circuit of FIG.

【００５４】而して本実施形態では、交流電源Ｖ１の通
電時には、停電検出回路Ｆの出力信号により制御回路Ｂ
Ｃ２が動作せず、昇圧回路Ｇ２は停止しており、交流電
源Ｖ１、昇圧回路Ｇ１、電解コンデンサＣ１、限流回路
Ｈ１、フィルタ回路Ｉ、極性反転回路Ｊ、高圧放電灯Ｌ
Ａにより高圧放電灯ＬＡを安定に点灯させる。In the present embodiment, when the AC power supply V1 is energized, the control circuit B is controlled by the output signal of the power failure detection circuit F.
C2 does not operate, the booster circuit G2 is stopped, and the AC power supply V1, the booster circuit G1, the electrolytic capacitor C1, the current limiting circuit H1, the filter circuit I, the polarity inverting circuit J, and the high pressure discharge lamp L
A stably turns on the high pressure discharge lamp LA.

【００５５】一方、交流電源Ｖ１が停電して、停電検出
回路Ｆが停電を検出すると、停電検出回路Ｆの検出信号
を受けた制御回路ＢＣ２の働きにより昇圧回路Ｇ２が動
作し、電池Ｖ２、昇圧回路Ｇ２、電解コンデンサＣ１、
限流回路Ｈ１、フィルタ回路Ｉ、極性反転回路Ｊ、高圧
放電灯ＬＡにより高圧放電灯ＬＡを安定に点灯させる。On the other hand, when the AC power supply V1 fails and the power failure detection circuit F detects a power failure, the boosting circuit G2 operates by the operation of the control circuit BC2 receiving the detection signal of the power failure detection circuit F, and the battery V2 and the boost Circuit G2, electrolytic capacitor C1,
The high-pressure discharge lamp LA is stably turned on by the current limiting circuit H1, the filter circuit I, the polarity inversion circuit J, and the high-pressure discharge lamp LA.

【００５６】このように構成することによって、図３の
実施形態に比べ、部品点数を削減することができ、小型
化及び低コスト化を図ることができる。With such a configuration, the number of components can be reduced, and the size and cost can be reduced as compared with the embodiment of FIG.

【００５７】尚限流回路Ｈ１，電解コンデンサＣ１を共
用する構成は図４，図５，図７の実施形態においても採
用でき、本実施形態と同様に部品点数を削減することが
でき、小型化及び低コスト化を図ることができる。 （実施形態７）本実施形態は図１０に示すように図９の
実施形態において、昇圧回路Ｇ１の出力端と、昇圧回路
Ｇ２の出力端にそれぞれコンデンサＣ５およびＣ４を付
加したものである。その他の構成は図９と同じである。
本実施形態では、交流電源Ｖ１の通電時には、停電検出
回路Ｆの出力信号により制御回路ＢＣ２が動作せず、昇
圧回路Ｇ２は停止しており、交流電源Ｖ１、昇圧回路Ｇ
１、電解コンデンサＣ１、限流回路Ｈ１、フィルタ回路
Ｉ、極性反転回路Ｊ、高圧放電灯ＬＡにより高圧放電灯
ＬＡを安定に点灯させる。The configuration in which the current limiting circuit H1 and the electrolytic capacitor C1 are shared can be adopted also in the embodiments of FIGS. 4, 5, and 7, and the number of parts can be reduced and the size can be reduced as in the present embodiment. And cost reduction can be achieved. (Embodiment 7) This embodiment is different from the embodiment of FIG. 9 in that capacitors C5 and C4 are added to the output terminal of the booster circuit G1 and the output terminal of the booster circuit G2, respectively, as shown in FIG. Other configurations are the same as those in FIG.
In the present embodiment, when the AC power supply V1 is energized, the control circuit BC2 does not operate due to the output signal of the power failure detection circuit F, the booster circuit G2 is stopped, and the AC power supply V1 and the booster circuit G
1. The high pressure discharge lamp LA is stably turned on by the electrolytic capacitor C1, the current limiting circuit H1, the filter circuit I, the polarity inversion circuit J, and the high pressure discharge lamp LA.

【００５８】一方、交流電源Ｖ１が停電して、停電検出
回路Ｆが停電を検出すると、停電検出回路Ｆの検出信号
を受けた制御回路ＢＣ２の働きにより昇圧回路Ｇ２が動
作し、電池Ｖ２、昇圧回路Ｇ２、電解コンデンサＣ１、
限流回路Ｈ１、フィルタ回路Ｉ、極性反転回路Ｊ、高圧
放電灯ＬＡにより高圧放電灯ＬＡを安定に点灯させる。On the other hand, when the AC power supply V1 fails and the power failure detection circuit F detects a power failure, the boosting circuit G2 operates by the operation of the control circuit BC2 receiving the detection signal of the power failure detection circuit F, and the battery V2 and the boosting circuit G2 operate. Circuit G2, electrolytic capacitor C1,
The high-pressure discharge lamp LA is stably turned on by the current limiting circuit H1, the filter circuit I, the polarity inversion circuit J, and the high-pressure discharge lamp LA.

【００５９】このように構成することによって、図９の
実施形態と同様の効果を奏するとともに、コンデンサＣ
３、Ｃ４によって、昇圧回路Ｂ１の出力端と昇圧回路Ｂ
２の出力端の間に重畳する高周波成分を除去することが
できる。 （実施形態８）本実施形態は、図１１に示すように電池
Ｖ２を充電する充電回路Ｅを昇圧回路Ｇ１の一部を利用
して構成したものである。図１１のその他の構成は図１
０に準ずる。With this configuration, the same effects as those of the embodiment of FIG.
3, C4, the output terminal of the booster circuit B1 and the booster circuit B
High frequency components superimposed between the two output terminals can be removed. (Embodiment 8) In this embodiment, as shown in FIG. 11, a charging circuit E for charging a battery V2 is configured by using a part of a booster circuit G1. The other configuration of FIG.
According to 0.

【００６０】本実施形態の昇圧型チョッパ回路からなる
昇圧回路Ｇ１のインダクタンス素子Ｌ１１に二次巻線を
設け、この二次巻線の両端電圧を充電回路Ｅにおいて抵
抗Ｒ８０を介してダイオードＤ８０で整流し、更にコン
デンサＣ８０で平滑して電池Ｖ２を充電する電源として
いる。このように構成すれば、交流電源Ｖ１から電源ト
ランスを介して充電回路Ｅの電源を構成する場合に比べ
て、小型化及び低コスト化を図ることができる。A secondary winding is provided on the inductance element L11 of the booster circuit G1 comprising the booster chopper circuit of the present embodiment, and the voltage across the secondary winding is rectified by the diode D80 via the resistor R80 in the charging circuit E. Further, the power is smoothed by the capacitor C80 and used as a power source for charging the battery V2. With this configuration, it is possible to reduce the size and cost as compared with the case where the power supply of the charging circuit E is configured from the AC power supply V1 via the power supply transformer.

【００６１】尚本実施形態の電池Ｖ２を充電するための
充電回路Ｅを含めた回路構成は、上述した各実施形態１
乃至７における電池Ｖ２の充電回路として採用できるの
は勿論である。 （実施形態９）本実施形態では、図１２に示すように降
圧チョッパ型回路からなる限流回路Ｈ１のインダクタン
ス素子Ｌ１２に二次巻線を設け、この二次巻線の両端電
圧を充電回路Ｅで実施形態８と同様に整流平滑して電池
Ｖ２を充電する電源としている。このように構成して
も、小型化及び低コスト化を図ることができる。尚図１
２のその他の構成は図１０に準ずる。The circuit configuration including the charging circuit E for charging the battery V2 of the present embodiment is the same as that of the first embodiment described above.
Needless to say, it can be adopted as a charging circuit for the battery V2 in the above-described embodiments. (Embodiment 9) In this embodiment, as shown in FIG. 12, a secondary winding is provided on an inductance element L12 of a current limiting circuit H1 composed of a step-down chopper type circuit, and a voltage across the secondary winding is charged to a charging circuit E. In the same manner as in the eighth embodiment, the power supply is used to charge the battery V2 after rectification and smoothing. Even with such a configuration, size reduction and cost reduction can be achieved. FIG. 1
The other configuration of 2 conforms to FIG.

【００６２】また本実施形態の電池Ｖ２を充電するため
の充電回路Ｅを含めた回路構成は、上述した各実施形態
１乃至７における電池Ｖ２の充電回路として採用できる
のは勿論である。 （実施形態１０）本実施形態は実施形態９の構成におい
て、交流電源Ｖ１の停電時に充電回路Ｅの動作を停止さ
せるようにしたものである。The circuit configuration including the charging circuit E for charging the battery V2 of the present embodiment can of course be adopted as the charging circuit of the battery V2 in each of the first to seventh embodiments described above. (Embodiment 10) In the present embodiment, the operation of the charging circuit E is stopped when the AC power supply V1 is out of power in the configuration of Embodiment 9.

【００６３】つまり本実施形態では図１３に示すように
充電回路ＥのコンデンサＣ８０のプラス端子側をトラン
ジスタＱ９０を介して電池Ｖ２のプラス極に接続し、ト
ランジスタＱ９０のベースを抵抗Ｒ９１とトランジスタ
Ｑ９１を介してグランドに接続し、トランジスタＱ９１
のベースをノットゲートＮＯＴと抵抗Ｒ９０の直列回路
を介して切替回路Ｘ２の出力に接続してある。That is, in this embodiment, as shown in FIG. 13, the positive terminal side of the capacitor C80 of the charging circuit E is connected to the positive electrode of the battery V2 via the transistor Q90, and the base of the transistor Q90 is connected to the resistor R91 and the transistor Q91. Through the transistor Q91
Is connected to the output of the switching circuit X2 via a series circuit of a NOT gate NOT and a resistor R90.

【００６４】そして交流電源Ｖ１が通電されているとき
には切替回路Ｘ２の出力が”Ｌ”であるため、トランジ
スタＱ９１がオンしてトランジスタＱ９０のベースに電
流が流れてオンし、充電回路ＥからトランジスタＱ９０
を介して電池Ｖ２に充電電流が流れる。一方交流電源Ｖ
１が停電すると停電検出回路Ｆの検出信号により切替回
路Ｘ２の出力が”Ｈ”となるため、トランジスタＱ９１
がオフしてトランジスＱ９０もオフするので、停電時に
は電池Ｖ２への充電が停止される。When the AC power supply V1 is energized, the output of the switching circuit X2 is "L", so that the transistor Q91 is turned on, a current flows through the base of the transistor Q90, and the transistor Q90 is turned on.
, A charging current flows to the battery V2. On the other hand, AC power supply V
When a power failure occurs in the transistor Q91, the output of the switching circuit X2 changes to "H" in response to the detection signal of the power failure detection circuit F.
Is turned off and the transistor Q90 is also turned off, so that charging of the battery V2 is stopped at the time of power failure.

【００６５】このような構成により、停電時に、電池Ｖ
２が放電と同時に充電されることがないので、電池の放
電エネルギを低減することができる。With such a configuration, the battery V
Since the battery 2 is not charged simultaneously with the discharge, the discharge energy of the battery can be reduced.

【００６６】尚図１３のその他の構成は図１２に準ずる
ものである。The other configuration of FIG. 13 is similar to that of FIG.

【００６７】また本実施形態の電池Ｖ２を充電するため
の充電回路Ｅを含めた回路構成は、上述した各実施形態
１乃至７における電池Ｖ２の充電回路として採用できる
のは勿論である。更に充電回路Ｅの出力を停電時に停止
させるための構成を図１１の充電回路Ｅに付加しても勿
論良い。 （実施形態１０）本実施形態は、図１４に示すように停
電検出回路Ｆと切替回路Ｘ２を除去するとともに交流電
源Ｖ１の通電時も昇圧回路Ｇ２を動作させるように制御
回路ＢＣ２を構成した点で図１２の回路と相違するもの
である。The circuit configuration including the charging circuit E for charging the battery V2 of the present embodiment can of course be employed as the charging circuit for the battery V2 in each of the first to seventh embodiments described above. Further, a configuration for stopping the output of the charging circuit E at the time of a power failure may be added to the charging circuit E of FIG. (Embodiment 10) In this embodiment, as shown in FIG. 14, the control circuit BC2 is configured to remove the power failure detection circuit F and the switching circuit X2 and to operate the booster circuit G2 even when the AC power supply V1 is energized. This is different from the circuit of FIG.

【００６８】而して本実施形態では、昇圧回路Ｇ１の出
力電圧をＶＤＣ１、昇圧回路Ｇ２の出力電圧をＶＤＣ２
とすると、ＶＤＣ１＞ＶＤＣ２となるようにＶＤＣ１、
ＶＤＣ２が設定されており、この状態で、交流電源Ｖ１
の通電時は昇圧回路Ｇ１、限流回路Ｈ１により高圧放電
灯ＬＡを安定に点灯させ、同時に制御回路ＢＣ２を動か
して昇圧回路Ｇ２も動作させておく。ＶＤＣ１＞ＶＤＣ
２であるから昇圧回路Ｇ２から限流回路Ｈ１へ電力は供
給されず、電池Ｖ２のエネルギを消費することはない。
また、昇圧回路Ｇ２の出力端にダイオードＤ２１がある
ために、昇圧回路Ｇ１の出力端から昇圧回路Ｇ２の出力
端へ電力が供給されることもなく、昇圧回路Ｇ１の出力
電力はすべて限流回路Ｈ１の方へ供給され、高圧放電灯
ＬＡを安定に点灯させる。In this embodiment, the output voltage of the booster circuit G1 is VDC1 and the output voltage of the booster circuit G2 is VDC2.
Then, VDC1 is set so that VDC1> VDC2,
VDC2 is set, and in this state, the AC power supply V1 is set.
During energization, the high-pressure discharge lamp LA is stably turned on by the booster circuit G1 and the current limiting circuit H1, and at the same time, the control circuit BC2 is operated to operate the booster circuit G2. VDC1> VDC
2, the power is not supplied from the booster circuit G2 to the current limiting circuit H1, and the energy of the battery V2 is not consumed.
Further, since the diode D21 is provided at the output terminal of the booster circuit G2, no power is supplied from the output terminal of the booster circuit G1 to the output terminal of the booster circuit G2, and the output power of the booster circuit G1 is all the current limiting circuit. The high-pressure discharge lamp LA is supplied to H1 to stably turn on the high-pressure discharge lamp LA.

【００６９】一方、交流電源Ｖ１が停電した場合には、
電解コンデンサＣ１の蓄積電荷が減少していき、ＶＤＣ
１が低下する。ＶＤＣ１がＶＤＣ２まで低下すると、ダ
イオードＤ２１がオンし、電池Ｖ２から昇圧回路Ｇ２を
介して限流回路Ｈ１へ電力が供給され、高圧放電灯ＬＡ
を点灯維持する。On the other hand, when the AC power supply V1 is out of power,
The accumulated charge of the electrolytic capacitor C1 decreases, and VDC
1 decreases. When VDC1 drops to VDC2, the diode D21 turns on, and power is supplied from the battery V2 to the current limiting circuit H1 via the booster circuit G2, and the high-pressure discharge lamp LA
Keep lit.

【００７０】以上のように構成することにより、部品点
数を削減することができ、小型化及び低コスト化を図る
ことができる。With the above configuration, the number of components can be reduced, and miniaturization and cost reduction can be achieved.

【００７１】尚本実施形態のように停電検出回路Ｆと切
替回路Ｘ２を除去するとともに交流電源Ｖ１の通電時も
昇圧回路Ｇ２を動作させるように制御回路ＢＣ２を構成
することは、図９乃至図１１及び図１３に示される構成
において、採用できるのは勿論である。 （実施形態１１）本実施形態は実施形態１０の構成に、
図１５に示すように電解コンデンサＣ１の両端電圧を監
視して、限流回路Ｈ１の出力を制御する入力検出回路Ｉ
Ｄを付加した点である。It should be noted that the control circuit BC2 configured to remove the power failure detection circuit F and the switching circuit X2 and to operate the booster circuit G2 even when the AC power supply V1 is energized as in the present embodiment is shown in FIGS. Of course, the configuration shown in FIG. 11 and FIG. 13 can be adopted. (Embodiment 11) This embodiment is different from the configuration of Embodiment 10 in that
As shown in FIG. 15, an input detection circuit I which monitors the voltage across the electrolytic capacitor C1 and controls the output of the current limiting circuit H1.
D is added.

【００７２】本実施形態においては、ＶＤＣ１＞ＶＤＣ
２なる限流回路Ｈ１の２通りの入力電圧に対して、限流
回路Ｈ１の出力電圧が一定となるように、入力検出回路
ＩＤにより電解コンデンサＣ１の両端電圧を監視して、
この監視結果により限流回路Ｈ１のスイッチング素子Ｑ
１２のスイッチングを制御して出力電圧を制御する。In this embodiment, VDC1> VDC
The input detection circuit ID monitors the voltage across the electrolytic capacitor C1 so that the output voltage of the current limiting circuit H1 is constant with respect to the two input voltages of the two current limiting circuits H1.
According to this monitoring result, the switching element Q of the current limiting circuit H1 is
The output voltage is controlled by controlling the switching of No. 12.

【００７３】本実施形態の構成によれば、図１４の実施
形態と同様に停電検出回路Ｆおよび切替回路Ｘ２が不要
となるだけでなく、交流電源Ｖ１の停電時も通電時と同
様の出力電力が得られる。According to the configuration of the present embodiment, not only the power failure detection circuit F and the switching circuit X2 become unnecessary as in the embodiment of FIG. Is obtained.

【００７４】なお上述の全て実施形態において、昇圧回
路Ｇ１，Ｇ２は昇圧チョッパ型に限らず、フォワード型
でも、フライバック型でも構わない。また、限流回路Ｈ
１，Ｈ２は降圧チョッパ型に限定されない。In all the embodiments described above, the boosting circuits G1 and G2 are not limited to the boosting chopper type, but may be a forward type or a flyback type. In addition, the current limiting circuit H
1 and H2 are not limited to the step-down chopper type.

【００７５】また更に、上述の全ての実施形態におい
て、高圧放電灯ＬＡが始動に高圧パルスを必要とする場
合には、高圧放電灯ＬＡの両端にイグナイタを付加する
ことによって、本発明の効果を得ることができる。この
場合、イグナイタは瞬時再点灯型を必要とはしない。Further, in all of the above embodiments, when the high pressure discharge lamp LA requires a high pressure pulse for starting, the effects of the present invention can be obtained by adding igniters to both ends of the high pressure discharge lamp LA. Obtainable. In this case, the igniter does not need an instantaneous relighting type.

【００７６】さらに上述の実施形態の図において、充電
回路を図示していないものは、上述した充電回路Ｅを採
用しても良く、また他の充電回路を作用しても良いのは
勿論である。Further, in the drawings of the above-described embodiment, those not showing the charging circuit may employ the above-mentioned charging circuit E, or of course, may use another charging circuit. .

【００７７】[0077]

【発明の効果】請求項１の発明は、交流電源に接続され
る第１の電力変換回路と、第１の電力変換回路の出力端
に接続される高圧放電灯と、電池と、該電池を電源とし
出力端が第１の電力変換回路の出力端に接続され、高圧
放電灯を点灯するための電力を供給する第２の電力変換
回路とからなり、交流電源通電時は交流電源と、第１の
電力変換回路により高圧放電灯を点灯し、交流電源停電
時には電池と、第２の電力変換回路により高圧放電灯を
点灯するように切り替える放電灯点灯装置において、上
記切り替えの際に高圧放電灯が立ち消えするのを防止す
る立消え防止手段を設けたので、非常用電源のないトン
ネルなどで商用電源が停電した場合でも、高圧放電灯を
立消えさせることなく電池を電源とした点灯回路に切り
替わり、点灯維持することができるという効果がある。According to the first aspect of the present invention, there is provided a first power conversion circuit connected to an AC power supply, a high-pressure discharge lamp connected to an output terminal of the first power conversion circuit, a battery, and the battery. An output terminal is connected to an output terminal of the first power conversion circuit as a power supply, and includes a second power conversion circuit for supplying power for lighting the high-pressure discharge lamp. 1. A discharge lamp lighting device that switches on and off a high-pressure discharge lamp by a power conversion circuit of 1 and a battery and a high-pressure discharge lamp by a second power conversion circuit when an AC power failure occurs. In the event of a commercial power failure in a tunnel without an emergency power supply, the lighting circuit is switched to a battery-powered lighting circuit without turning off the high-pressure discharge lamps. Maintenance There is an effect that it is Rukoto.

【００７８】請求項２の発明は、請求項１の発明におい
て、上記立消え防止手段は、少なくとも第１の電力変換
回路から第２の電力変換回路へ切り替える間高圧放電灯
を点灯維持できるエネルギを持つ電力蓄積手段を有する
ので、交流電源が停電しても、高圧放電灯を立消えさせ
ることなく電池による電力変換回路に切り替わり、高圧
放電灯を点灯維持できるという効果がある。According to a second aspect of the present invention, in the first aspect of the present invention, the extinction prevention means has energy capable of maintaining lighting of the high-pressure discharge lamp at least during switching from the first power conversion circuit to the second power conversion circuit. Since the power storage means is provided, there is an effect that even if the AC power supply is cut off, the high-pressure discharge lamp can be switched to a power conversion circuit using a battery without extinguishing the high-pressure discharge lamp, and the high-pressure discharge lamp can be kept on.

【００７９】請求項３の発明は、請求項１又は請求項２
の発明において、上記立消え防止手段は、切り替え時に
高圧放電灯の消費電力を低減するので、請求項１乃至２
の発明と同様な効果があるとともに、電力蓄積手段の容
量を低減することができるという効果がある。The third aspect of the present invention is the first or second aspect.
In the invention of claim 1, the extinction prevention means reduces the power consumption of the high pressure discharge lamp at the time of switching, so that
In addition to the effect similar to that of the invention, there is an effect that the capacity of the power storage means can be reduced.

【００８０】請求項４の発明は、請求項１乃至３の何れ
かの発明において、上記立消え防止手段は、切り替え時
に高圧放電灯を高周波点灯するので、高圧放電灯の再点
弧電圧の発生を抑制でき、その結果立消えを防止できる
という効果がある。According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the extinction prevention means turns on the high-pressure discharge lamp at a high frequency at the time of switching. Thus, there is an effect that extinction can be prevented.

【００８１】請求項５の発明は、請求項１乃至３の何れ
かの発明において、上記立消え防止手段は、切り替え時
に高圧放電灯を直流点灯するので、高圧放電灯の再点弧
電圧の発生を抑制でき、その結果立消えを防止できると
いう効果がある。According to a fifth aspect of the present invention, in any one of the first to third aspects of the present invention, the extinction prevention means direct-lights the high-pressure discharge lamp at the time of switching. Thus, there is an effect that extinction can be prevented.

【００８２】請求項６の発明は、請求項１乃至５の何れ
かの発明において、上記第１の電力変換回路は、第１の
昇圧回路と、第１の昇圧回路の出力端に接続された第１
の電力蓄積手段と、第１の電力蓄積手段に接続された第
１の限流回路からなり、第２の電力変換回路は、第２の
昇圧回路と、第２の昇圧回路の出力端に接続された第２
の電力蓄積手段と、第２の電力蓄積手段に接続された第
２の限流回路から成るので、請求項１乃至５の発明と同
様な効果があるとともに、商用電源通電時、停電時とも
に高圧放電灯を安定に点灯させることができるという効
果がある。According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the first power conversion circuit is connected to a first booster circuit and an output terminal of the first booster circuit. First
, And a first current limiting circuit connected to the first power storage means. The second power conversion circuit is connected to a second booster circuit and an output terminal of the second booster circuit. The second
And the second current limiting circuit connected to the second power storage means, so that the same effects as those of the first to fifth aspects can be obtained. There is an effect that the discharge lamp can be stably turned on.

【００８３】請求項７の発明は、請求項６の発明におい
て、第１の電力蓄積手段と第２の電力蓄積手段を共用
し、第１の限流回路と第２の限流回路を共用したので、
部品点数を削減することができ、小型化及び低コスト化
を図ることができるという効果がある。According to a seventh aspect of the present invention, in the invention of the sixth aspect, the first power storage means and the second power storage means are shared, and the first current limiting circuit and the second current limiting circuit are shared. So
There is an effect that the number of parts can be reduced, and downsizing and cost reduction can be achieved.

【００８４】請求項８の発明は、請求項７の発明におい
て、第１の昇圧回路と第２の昇圧回路の各出力端に、コ
ンデンサを付加したので、第１の昇圧回路の出力端と第
２の昇圧回路の出力端の間に高周波成分が重畳するのを
防ぐことができるという効果がある。According to an eighth aspect of the present invention, in the seventh aspect of the present invention, a capacitor is added to each output terminal of the first booster circuit and the second booster circuit. There is an effect that high frequency components can be prevented from being superimposed between the output terminals of the second booster circuit.

【００８５】請求項９の発明は、請求項６乃至８の何れ
かの発明において、電池を充電するための充電回路を有
し、充電回路の電源は第１の限流回路に含まれたインダ
クタンス素子の二次巻線から供給するので、電源トラン
スなどを用いずに充電回路を構成することができ、小型
化及び低コスト化を図ることができるという効果があ
る。According to a ninth aspect of the present invention, in any one of the sixth to eighth aspects of the present invention, there is provided a charging circuit for charging a battery, wherein a power source of the charging circuit is an inductance included in the first current limiting circuit. Since the power is supplied from the secondary winding of the element, a charging circuit can be configured without using a power transformer or the like, and the size and cost can be reduced.

【００８６】請求項１０の発明は、請求項６乃至８の何
れかの発明において、電池を充電するための充電回路を
有し、充電回路の電源を、第１の限流回路に含まれたイ
ンダクタンス素子の二次巻線から供給し、交流電源停電
時は充電を停止するように切り替えるための切替回路を
設けたので、請求項９の発明と同様な効果があるととも
に、請求項９の発明に比べ、電池の放電エネルギを低減
することができるという効果がある。According to a tenth aspect of the present invention, in any one of the sixth to eighth aspects of the present invention, there is provided a charging circuit for charging a battery, wherein a power supply of the charging circuit is included in the first current limiting circuit. Since a switching circuit for supplying the voltage from the secondary winding of the inductance element and switching to stop charging when the AC power supply is interrupted is provided, the same effect as that of the ninth aspect of the present invention is obtained. This has the effect that the discharge energy of the battery can be reduced.

【００８７】請求項１１の発明は、請求項６乃至８の何
れかの発明において、電池を充電するための充電回路を
有し、充電回路の電源は第１の昇圧回路に含まれたイン
ダクタンス素子の二次巻線から供給するので、請求項９
の発明と同様に小型化及び低コスト化を図ることができ
るという効果がある。According to an eleventh aspect of the present invention, in any one of the sixth to eighth aspects of the present invention, there is provided a charging circuit for charging a battery, wherein the power source of the charging circuit is an inductance element included in the first booster circuit. Claim 9
As in the invention of the third aspect, there is an effect that downsizing and cost reduction can be achieved.

【００８８】請求項１２の発明は、請求項９又は１０の
発明において、第２の昇圧回路の制御電源を、充電回路
の電源と共用したので、第１の電力変換回路と第２の電
力変換回路の間の渡り線の本数を低減することができる
という効果がある。According to a twelfth aspect of the present invention, in the ninth or tenth aspect, the control power supply of the second booster circuit is shared with the power supply of the charging circuit. There is an effect that the number of crossover lines between circuits can be reduced.

【００８９】請求項１３の発明は、請求項６乃至１２の
何れの発明において、第２の昇圧回路の出力電圧を第１
の昇圧回路の出力電圧よりも低く設定し、交流電源通電
時に第１の昇圧回路と第２の昇圧回路の双方を動作させ
るので、商用電源通電時には第２の昇圧回路を停止さ
せ、商用電源停電時には第２の昇圧回路を動作させるよ
うに切り替えるための切替回路や、商用電源の停電を検
出する停電検出回路が不要となり、部品点数を削減する
ことができ、小型化及び低コスト化を図ることができる
という効果がある。According to a thirteenth aspect of the present invention, in any one of the sixth to twelfth aspects, the output voltage of the second booster circuit is adjusted to the first voltage.
Is set lower than the output voltage of the booster circuit, and both the first booster circuit and the second booster circuit are operated when the AC power is turned on. Therefore, the second booster circuit is stopped when the commercial power is turned on, and Sometimes, a switching circuit for switching the second booster circuit to operate or a power failure detection circuit for detecting a commercial power failure is not required, so that the number of components can be reduced, and miniaturization and cost reduction can be achieved. There is an effect that can be.

【００９０】請求項１４の発明は、請求項６乃至１２の
何れの発明において、第２の昇圧回路の出力電圧を第１
の昇圧回路の出力電圧よりも低く設定した状態で第１の
昇圧回路と第２の昇圧回路の双方を動作させ、交流電源
停電時は、第１の昇圧回路の出力電圧より低い第２の昇
圧回路の出力電圧でも交流電源通電時と同様の出力電力
が得られるように第１の限流回路を制御するので、請求
項１３の発明と同様に部品点数を削減しつつ、商用電源
停電時に、請求項１３の発明に比べ、より高い出力電力
を得ることができるという効果がある。According to a fourteenth aspect of the present invention, in any one of the sixth to twelfth aspects, the output voltage of the second booster circuit is adjusted to the first voltage.
The first booster circuit and the second booster circuit are both operated in a state of being set lower than the output voltage of the booster circuit, and the second booster circuit which is lower than the output voltage of the first booster circuit at the time of AC power failure. Since the first current limiting circuit is controlled so that the same output power as when the AC power is supplied can be obtained even at the output voltage of the circuit, the number of components can be reduced as in the invention of claim 13, There is an effect that higher output power can be obtained as compared with the invention of claim 13.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本実施形態１の回路構成図である。FIG. 1 is a circuit configuration diagram of a first embodiment.

【図２】本実施形態２の回路構成図である。FIG. 2 is a circuit configuration diagram of a second embodiment.

【図３】本実施形態３の回路構成図である。FIG. 3 is a circuit configuration diagram of a third embodiment.

【図４】本実施形態４の回路構成図である。FIG. 4 is a circuit configuration diagram of a fourth embodiment.

【図５】本実施形態５の回路構成図である。FIG. 5 is a circuit configuration diagram of a fifth embodiment.

【図６】同上の動作説明用タイミングチャートである。FIG. 6 is a timing chart for explaining the above operation.

【図７】本実施形態６の回路構成図である。FIG. 7 is a circuit configuration diagram of a sixth embodiment.

【図８】同上の動作説明用タイミングチャートである。FIG. 8 is a timing chart for explaining the above operation.

【図９】本実施形態７の回路構成図である。FIG. 9 is a circuit configuration diagram of a seventh embodiment.

【図１０】本実施形態８の回路構成図である。FIG. 10 is a circuit configuration diagram of Embodiment 8;

【図１１】本実施形態９の回路構成図である。FIG. 11 is a circuit configuration diagram of Embodiment 9;

【図１２】本実施形態８の回路構成図である。FIG. 12 is a circuit configuration diagram of Embodiment 8;

【図１３】本発明の実施形態９の回路図である。FIG. 13 is a circuit diagram of a ninth embodiment of the present invention.

【図１４】本実施形態１０の回路構成図である。FIG. 14 is a circuit configuration diagram of the tenth embodiment.

【図１５】本発明の実施形態１１の回路図である。FIG. 15 is a circuit diagram according to Embodiment 11 of the present invention.

【図１６】従来例１の回路図である。FIG. 16 is a circuit diagram of Conventional Example 1.

【図１７】従来例２の回路図である。FIG. 17 is a circuit diagram of a second conventional example.

【符号の説明】[Explanation of symbols]

Ｖ１ 交流電源 Ｖ２ 電池 Ｆ 停電検出回路 Ｘ２ 切替回路 ＢＣ２ 制御回路 Ｂ１，Ｂ２ 電力変換回路 ＬＡ 高圧放電灯 Ｘ 立ち消え防止手段 V1 AC power supply V2 Battery F Power failure detection circuit X2 Switching circuit BC2 Control circuit B1, B2 Power conversion circuit LA High-pressure discharge lamp X Prevention means for extinguishing

Claims (14)

【特許請求の範囲】[Claims] 【請求項１】交流電源に接続される第１の電力変換回路
と、 第１の電力変換回路の出力端に接続される高圧放電灯
と、 電池と、 該電池を電源とし出力端が第１の電力変換回路の出力端
に接続され、高圧放電灯を点灯するための電力を供給す
る第２の電力変換回路とからなり、 交流電源通電時は交流電源と、第１の電力変換回路によ
り高圧放電灯を点灯し、交流電源停電時には電池と、第
２の電力変換回路により高圧放電灯を点灯するように切
り替える放電灯点灯装置において、 上記切り替えの際に高圧放電灯が立ち消えするのを防止
する立消え防止手段を設けたことを特徴とする放電灯点
灯装置。A first power conversion circuit connected to an AC power supply; a high-pressure discharge lamp connected to an output terminal of the first power conversion circuit; a battery; And a second power conversion circuit connected to the output end of the power conversion circuit for supplying power for lighting the high-pressure discharge lamp. When the AC power supply is turned on, the AC power supply and the first power conversion circuit In a discharge lamp lighting device for turning on a discharge lamp and switching on a high voltage discharge lamp by a battery and a second power conversion circuit when an AC power failure occurs, the high pressure discharge lamp is prevented from extinguishing during the switching. A discharge lamp lighting device provided with a means for preventing falling off. 【請求項２】上記立消え防止手段は、少なくとも第１の
電力変換回路から第２の電力変換回路へ切り替える間高
圧放電灯を点灯維持できるエネルギを持つ電力蓄積手段
を有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 power supply system according to claim 1, wherein said means for preventing extinction comprises at least power storage means having an energy capable of maintaining lighting of the high-pressure discharge lamp during switching from the first power conversion circuit to the second power conversion circuit. 2. The discharge lamp lighting device according to 1. 【請求項３】上記立消え防止手段は、切り替え時に高圧
放電灯の消費電力を低減することを特徴とする請求項１
又は２記載の放電灯点灯装置。3. The extinction prevention means reduces power consumption of the high pressure discharge lamp at the time of switching.
Or the discharge lamp lighting device according to 2. 【請求項４】上記立消え防止手段は、切り替え時に高圧
放電灯を高周波点灯することを特徴とする請求項１乃至
３の何れか記載の放電灯点灯装置。4. The discharge lamp lighting device according to claim 1, wherein said extinction prevention means turns on the high-pressure discharge lamp at a high frequency at the time of switching. 【請求項５】上記立消え防止手段は、切り替え時に高圧
放電灯を直流点灯することを特徴とする請求項１乃至３
の何れか記載の放電灯点灯装置。5. A lighting system according to claim 1, wherein said means for preventing extinction turns on the high-pressure discharge lamp with direct current at the time of switching.
The discharge lamp lighting device according to any one of the above. 【請求項６】上記第１の電力変換回路は、第１の昇圧回
路と、第１の昇圧回路の出力端に接続された第１の電力
蓄積手段と、第１の電力蓄積手段に接続された第１の限
流回路からなり、 第２の電力変換回路は、第２の昇圧回路と、第２の昇圧
回路の出力端に接続された第２の電力蓄積手段と、第２
の電力蓄積手段に接続された第２の限流回路から成るこ
とを特徴とする請求項１乃至５の何れか記載の放電灯点
灯装置。6. The first power conversion circuit is connected to a first booster circuit, a first power storage means connected to an output terminal of the first booster circuit, and a first power storage means. A second current converter, a second power converter, a second power converter, a second booster, a second power storage unit connected to an output terminal of the second booster,
6. The discharge lamp lighting device according to claim 1, further comprising a second current limiting circuit connected to said power storage means. 【請求項７】第１の電力蓄積手段と第２の電力蓄積手段
を共用し、第１の限流回路と第２の限流回路を共用した
ことを特徴とする請求項６記載の放電灯点灯装置。7. The discharge lamp according to claim 6, wherein the first power storage means and the second power storage means are shared, and the first current limiting circuit and the second current limiting circuit are shared. Lighting device. 【請求項８】第１の昇圧回路と第２の昇圧回路の各出力
端に、コンデンサを付加したことを特徴とする請求項７
記載の放電灯点灯装置。8. A capacitor is added to each output terminal of the first booster circuit and the second booster circuit.
The discharge lamp lighting device as described in the above. 【請求項９】電池を充電するための充電回路を有し、充
電回路の電源は第１の限流回路に含まれたインダクタン
ス素子の二次巻線から供給することを特徴とする請求項
６乃至８の何れか記載の放電灯点灯装置。9. A charging circuit for charging a battery, wherein power for the charging circuit is supplied from a secondary winding of an inductance element included in the first current limiting circuit. 9. The discharge lamp lighting device according to any one of claims 8 to 8. 【請求項１０】電池を充電するための充電回路を有し、
充電回路の電源を、第１の限流回路に含まれたインダク
タンス素子の二次巻線から供給し、交流電源停電時は充
電を停止するように切り替えるための切替回路を設けた
ことを特徴とする請求項６乃至９の何れか記載の放電灯
点灯装置。10. A charging circuit for charging a battery,
A power supply for the charging circuit is supplied from a secondary winding of an inductance element included in the first current limiting circuit, and a switching circuit is provided for switching to stop charging when an AC power failure occurs. The discharge lamp lighting device according to any one of claims 6 to 9. 【請求項１１】電池を充電するための充電回路を有し、
充電回路の電源は第１の昇圧回路に含まれたインダクタ
ンス素子の二次巻線から供給することを特徴とする請求
項６乃至８の何れか記載の放電灯点灯装置。11. A charging circuit for charging a battery,
9. The discharge lamp lighting device according to claim 6, wherein a power supply of the charging circuit is supplied from a secondary winding of an inductance element included in the first booster circuit. 【請求項１２】第２の昇圧回路の制御電源を、充電回路
の電源と共用したことを特徴とする請求項９又は１０記
載の放電灯点灯装置。12. The discharge lamp lighting device according to claim 9, wherein a control power supply of the second booster circuit is shared with a power supply of the charging circuit. 【請求項１３】第２の昇圧回路の出力電圧を第１の昇圧
回路の出力電圧よりも低く設定し、交流電源通電時に第
１の昇圧回路と第２の昇圧回路の双方を動作させること
を特徴とする請求項６乃至１２の何れか記載の放電灯点
灯装置。13. An output voltage of the second booster circuit is set lower than an output voltage of the first booster circuit, and both the first booster circuit and the second booster circuit are operated when AC power is supplied. The discharge lamp lighting device according to any one of claims 6 to 12, wherein: 【請求項１４】第２の昇圧回路の出力電圧を第１の昇圧
回路の出力電圧よりも低く設定した状態で第１の昇圧回
路と第２の昇圧回路の双方を動作させ、交流電源停電時
は、第１の昇圧回路の出力電圧より低い第２の昇圧回路
の出力電圧でも交流電源通電時と同様の出力電力が得ら
れるように第１の限流回路を制御することを特徴とする
請求項６乃至１２の何れか記載の放電灯点灯装置。14. When the output voltage of the second booster circuit is set lower than the output voltage of the first booster circuit, both the first booster circuit and the second booster circuit are operated, and when the AC power supply fails, Controlling the first current limiting circuit so as to obtain the same output power as when the AC power is supplied even with the output voltage of the second booster circuit lower than the output voltage of the first booster circuit. Item 13. The discharge lamp lighting device according to any one of Items 6 to 12.
JP14487398A 1998-05-26 1998-05-26 Discharge lamp lighting device Withdrawn JPH11339982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14487398A JPH11339982A (en) 1998-05-26 1998-05-26 Discharge lamp lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14487398A JPH11339982A (en) 1998-05-26 1998-05-26 Discharge lamp lighting device

Publications (1)

Publication Number Publication Date
JPH11339982A true JPH11339982A (en) 1999-12-10

Family

ID=15372379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14487398A Withdrawn JPH11339982A (en) 1998-05-26 1998-05-26 Discharge lamp lighting device

Country Status (1)

Country Link
JP (1) JPH11339982A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164191A (en) * 2000-11-24 2002-06-07 Matsushita Electric Works Ltd Lighting device for high pressure discharge lamp
JP2007066878A (en) * 2005-08-01 2007-03-15 Phoenix Denki Kk Lighting circuit of high-pressure discharge lamp
JP2009009788A (en) * 2007-06-27 2009-01-15 Osram-Melco Ltd High-pressure discharge lamp lighting device
JP2014229385A (en) * 2013-05-20 2014-12-08 三菱電機株式会社 Lighting device and lighting fixture
JP2017188487A (en) * 2017-07-24 2017-10-12 三菱電機株式会社 Emergency illumination control device and emergency illuminating device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002164191A (en) * 2000-11-24 2002-06-07 Matsushita Electric Works Ltd Lighting device for high pressure discharge lamp
JP4590718B2 (en) * 2000-11-24 2010-12-01 パナソニック電工株式会社 High pressure discharge lamp lighting device
JP2007066878A (en) * 2005-08-01 2007-03-15 Phoenix Denki Kk Lighting circuit of high-pressure discharge lamp
JP2009009788A (en) * 2007-06-27 2009-01-15 Osram-Melco Ltd High-pressure discharge lamp lighting device
JP2014229385A (en) * 2013-05-20 2014-12-08 三菱電機株式会社 Lighting device and lighting fixture
JP2017188487A (en) * 2017-07-24 2017-10-12 三菱電機株式会社 Emergency illumination control device and emergency illuminating device

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Effective date: 20050802