JP2979287B2 - Fluorescent light dimming system using high-frequency constant current power supply system - Google Patents
Fluorescent light dimming system using high-frequency constant current power supply systemInfo
- Publication number
- JP2979287B2 JP2979287B2 JP6282735A JP28273594A JP2979287B2 JP 2979287 B2 JP2979287 B2 JP 2979287B2 JP 6282735 A JP6282735 A JP 6282735A JP 28273594 A JP28273594 A JP 28273594A JP 2979287 B2 JP2979287 B2 JP 2979287B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- constant current
- frequency constant
- fluorescent lamp
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Description
【０００１】[0001]
【産業上の利用分野】この発明は、高周波定電流給電方
式により点灯した蛍光灯を０〜１００％の広い範囲で安
定に調光するための高周波定電流給電方式による蛍光灯
調光システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp dimming system using a high-frequency constant current power supply system for stably dimming a fluorescent lamp lit by a high frequency constant current power supply system in a wide range of 0 to 100%. It is.
【０００２】[0002]
【従来の技術】本出願人は、高周波定電流を流した給電
線から電流トランスを使用して蛍光灯に給電し点灯する
ようにした高周波定電流給電方式を開発し、既に実用新
案登録されている（実公昭６４−５３６０号公報ほ
か）。高周波定電流給電方式は、定電圧給電方式と異な
り負荷に過大電流が流れることがないから蛍光灯の寿命
を著しく長くすることができ、また、給電線に流す高周
波定電流の値を調節することにより蛍光灯の調光を安定
に行なうことができるという利点を有している。しかし
ながら、給電線に流す高周波定電流の値を下げていくと
定格の７０％程度までは安定に調光することができるが
それ以下になると蛍光灯の放電が突然停止して消えてし
まうことがあるという欠点があった。2. Description of the Related Art The present applicant has developed a high-frequency constant-current power supply system in which a current transformer is used to supply a fluorescent lamp from a power supply line through which a high-frequency constant current flows, so that the fluorescent lamp is lit. (Japanese Utility Model Publication No. 64-5360). Unlike the constant-voltage power supply method, the high-frequency constant-current power supply method does not allow an excessive current to flow through the load, so the life of the fluorescent lamp can be significantly extended, and the value of the high-frequency constant current flowing through the power supply line must be adjusted. Thus, there is an advantage that the light control of the fluorescent lamp can be stably performed. However, if the value of the high-frequency constant current flowing through the power supply line is reduced, the dimming can be stabilized up to about 70% of the rated value, but below that, the discharge of the fluorescent lamp suddenly stops and disappears. There was a disadvantage.
【０００３】[0003]
【発明が解決しようとする課題】この発明の目的は、上
記従来装置の欠点を改良することであり、高周波定電流
給電方式により点灯した蛍光灯の調光を０〜１００％の
広範囲で安定に行なうことができる高周波定電流給電方
式による蛍光灯調光システムを提供することである。SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks of the conventional apparatus, and to stably control the dimming of a fluorescent lamp lit by a high-frequency constant-current power supply system over a wide range of 0 to 100%. An object of the present invention is to provide a fluorescent lamp dimming system using a high-frequency constant current power supply system that can perform the method.
【０００４】[0004]
【課題を解決するための手段】上記の目的を解決するた
め、この発明の高周波定電流給電方式による蛍光灯調光
システムは、ヒーター電力用高周波定電流電源に接続さ
れたループコードを遊貫した２個のヒーター用電流トラ
ンスの二次巻線を蛍光灯の２つのヒーターにそれぞれ接
続するとともに放電電力用高周波定電流電源に接続され
たループコードを遊貫した１個の放電用電流トランスの
二次巻線を蛍光灯の２つのヒーター間に接続し、放電電
力用高周波定電流電源の出力電流値を変化させて蛍光灯
を調光するようにしている。またさらに、放電電力用高
周波定電流電源の出力電流値を所定値以下に減少させた
ときヒーター電力用高周波定電流電源の出力電流値を増
加させるようにしている。In order to solve the above-mentioned object, a fluorescent lamp dimming system using a high-frequency constant current power supply system according to the present invention has a loop cord connected to a high-frequency constant current power supply for heater power. The secondary windings of the two current transformers for the heaters are connected to the two heaters of the fluorescent lamp, respectively, and the two current transformers for the two discharge currents are connected to a high-frequency constant current power source for the discharge power. The secondary winding is connected between the two heaters of the fluorescent lamp to change the output current value of the high-frequency constant-current power supply for discharge power, thereby dimming the fluorescent lamp. Further, when the output current value of the high-frequency constant current power supply for discharge power is reduced to a predetermined value or less, the output current value of the high-frequency constant current power supply for heater power is increased.
【０００５】[0005]
【作用】ヒーター電力用高周波定電流電源の出力電流が
定格値であるとき、蛍光灯のヒーターには２個のヒータ
ー用電流トランスの巻線比により決定されるヒーター電
流が流れ、また、ヒーター間には放電電力用高周波定電
流電源の出力電流値および放電用電流トランスの巻線比
により決定される放電電流が流れ、蛍光灯は定格で点灯
する。調光用信号が定格点灯より低い値になっていくと
放電電力用高周波定電流電源の出力電流値だけが減少し
て蛍光灯の放電電流が減少し蛍光灯は徐々に暗くなって
いく。ヒーター電力用高周波定電流電源の出力電流が減
少することなく放電電力用高周波定電流電源の出力電流
値だけが減少することにより０％に近い範囲まで安定に
調光することができる。また、放電電力用高周波定電流
電源の出力電流値を所定値以下に減少させたとき逆にヒ
ーター電力用高周波定電流電源の出力電流値を増加させ
るようにすると、０％に近い範囲の調光をより安定に行
なうことができる。When the output current of the high-frequency constant current power supply for the heater power is the rated value, the heater current determined by the winding ratio of the two current transformers for the heater flows through the heater of the fluorescent lamp. The discharge current, which is determined by the output current value of the high-frequency constant current power supply for discharge power and the winding ratio of the discharge current transformer, flows, and the fluorescent lamp lights up at the rated value. When the dimming signal becomes lower than the rated lighting, only the output current value of the high-frequency constant current power supply for discharge power decreases, the discharge current of the fluorescent lamp decreases, and the fluorescent lamp gradually darkens. Since only the output current value of the high-frequency constant current power supply for discharge power decreases without the output current of the high-frequency constant current power supply for heater power decreasing, light can be stably adjusted to a range close to 0%. When the output current value of the high-frequency constant current power supply for discharge power is reduced to a predetermined value or less and the output current value of the high-frequency constant current power supply for heater power is increased, the dimming in a range close to 0% is achieved. Can be performed more stably.
【０００６】[0006]
【実施例】この発明の高周波定電流給電方式による蛍光
灯調光システムの実施例について図面を参照しながら説
明する。図１はその概略を示したものであり、出力電流
調節機能を有する高周波定電流インバーターからなるヒ
ーター電力用電源１の出力端子にループコード３が接続
され、また、同様に出力電流調節機能を有する（定格の
異なる）高周波定電流インバーターからなる放電電力用
電源２の出力端子にループコード４が接続されている。
ループコード３および４には所定数のヒーター用電流ト
ランス５およびその半分の数の放電用電流トランス６が
それぞれ遊貫され、２個のヒーター用電流トランス５お
よび１個の放電用電流トランス６を使用して１灯の蛍光
灯７がそれぞれ接続されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fluorescent lamp dimming system using a high-frequency constant current power supply system according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing an example in which a loop cord 3 is connected to an output terminal of a heater power supply 1 composed of a high-frequency constant current inverter having an output current adjusting function, and also has an output current adjusting function. A loop cord 4 is connected to an output terminal of a discharge power supply 2 composed of a high-frequency constant current inverter (having different ratings).
A predetermined number of heater current transformers 5 and half of the discharge current transformers 6 pass through the loop cords 3 and 4, respectively. The two heater current transformers 5 and one discharge current transformer 6 are connected to the loop cords 3 and 4, respectively. One fluorescent lamp 7 is connected to each of them.
【０００７】２個のヒーター用電流トランス５の二次巻
線は蛍光灯７の２つのヒーターにそれぞれ接続され、放
電用電流トランス６の二次巻線は蛍光灯７の２つのヒー
ター間に接続されている。ヒーター電力用電源１および
放電電力用電源２には、自動および手動の調光手段８か
らの調光用信号が共通に入力され、その指示に従って出
力電流値を適宜変更するようになっている。ヒーター電
力用電源１および放電電力用電源２の出力電流の周波数
は（一例として）６５kＨzであり、また、その出力電流
の定格値は、蛍光灯７の定格および灯数、ヒーター用電
流トランス５および放電用電流トランス６の二次巻線の
巻数等により決定される。The secondary windings of the two heater current transformers 5 are respectively connected to the two heaters of the fluorescent lamp 7, and the secondary windings of the discharge current transformer 6 are connected between the two heaters of the fluorescent lamp 7. Have been. A dimming signal from the automatic and manual dimming means 8 is commonly input to the heater power source 1 and the discharge power source 2, and the output current value is appropriately changed according to the instruction. The frequency of the output current of the heater power supply 1 and the discharge power supply 2 is 65 kHz (as an example), and the rated value of the output current is the rating and number of fluorescent lamps 7, the heater current transformer 5 and It is determined by the number of turns of the secondary winding of the discharge current transformer 6 and the like.
【０００８】ヒーター電力用電源１は、調光用信号が定
格点灯の１００〜３０％を指示している間はその出力電
流値を定格値に維持し、調光用信号が定格点灯の３０％
以下を指示するようになったとき徐々にその出力電流値
を増加していき最終的に定格値の１３０％程度になるよ
うに調節する。また、放電電力用電源２は、調光用信号
に応じてその出力電流値を定格値の１００〜０％の範囲
で調節する。The heater power supply 1 maintains the output current at the rated value while the dimming signal indicates 100% to 30% of the rated lighting, and sets the dimming signal at 30% of the rated lighting.
When the following is instructed, the output current value is gradually increased and finally adjusted to about 130% of the rated value. The power supply 2 for discharge power adjusts its output current value in the range of 100 to 0% of the rated value according to the dimming signal.
【０００９】次にその動作について説明する。ヒーター
電力用電源１および放電電力用電源２の出力電流が定格
値であるとき、蛍光灯７のヒーターには２個のヒーター
用電流トランス５の巻線比により決定されるヒーター電
流が流れ、また、ヒーター間には放電用電流トランス６
の巻線比により決定される放電電流が流れ、蛍光灯７は
定格で（１００％）点灯している。調光用信号が定格点
灯より低い値になっていくとヒーター電力用電源１の出
力電流値は変わらず、放電電力用電源２の出力電流値だ
けが減少し、蛍光灯７は徐々に暗くなっていく。調光用
信号が定格点灯の３０％以下になると、それに応じて放
電電力用電源２の出力電流値が減少するとともにヒータ
ー電力用電源１の出力電流値が逆に徐々に増加し、蛍光
灯７はさらに徐々に暗くなっていく。調光用信号が逆に
変動するときは上記と逆に動作し、また、暗くした状態
（例えば放電電流が定格値の１０％程度）で電源を切っ
ておき再び電源を入れた場合でも、消灯前と全く同じ状
態で点灯する。Next, the operation will be described. When the output currents of the heater power supply 1 and the discharge power supply 2 are rated values, a heater current determined by the winding ratio of the two heater current transformers 5 flows through the heater of the fluorescent lamp 7, and Current transformer 6 between heater and heater
The discharge current determined by the turn ratio of the fluorescent lamp 7 flows, and the fluorescent lamp 7 is lit (100%) at the rated value. When the dimming signal becomes lower than the rated lighting, the output current value of the heater power supply 1 does not change, only the output current value of the discharge power supply 2 decreases, and the fluorescent lamp 7 gradually darkens. To go. When the dimming signal falls below 30% of the rated lighting, the output current value of the discharge power source 2 decreases and the output current value of the heater power source 1 gradually increases accordingly, and the fluorescent lamp 7 Gradually darkens. When the dimming signal fluctuates in the opposite direction, it operates in the opposite manner. Even when the power is turned off in a darkened state (for example, the discharge current is about 10% of the rated value) and then turned on again, the light is turned off. Lights in exactly the same state as before.
【００１０】上記実施例においては、ヒーター電力用電
源１の出力電流値を、調光用信号が定格点灯の３０％以
下を指示した時点から増加し最終的に定格値の１３０％
程度になるように調節しているが、どの時点から増加さ
せるかおよび最終的にどのような値にするかは実測によ
り最適に設計変更すればよい。また、ヒーター電力用電
源１の出力電流値を途中から増加させることなく最後ま
で定格値に維持するようにしても０〜１００％の調光は
可能である。要は、放電電力用電源２の出力電流値を減
少させて蛍光灯７を暗くしていったとき、ヒーター電力
用電源１の出力電流値を減少させることなく、定格値に
維持するかあるいは逆に徐々に増加させることにより０
〜１００％の安定な調光が可能になるということであ
る。また、ヒーター電力用電源１および放電電力用電源
２の出力電流の周波数を６５kＨzにしているが、これに
限られるものではなく、他の器機への影響や電流トラン
スの設計のしやすさ等を考慮して１〜１００kＨz程度の
範囲で適当に設定することができ、必ずしも両者を同一
周波数にする必要もない。In the above embodiment, the output current value of the heater power supply 1 is increased from the point in time when the dimming signal indicates 30% or less of the rated lighting and finally increased to 130% of the rated value.
Although the adjustment is made so that the degree becomes the same, the design may be optimally changed by actual measurement from when to increase the value and finally to what value. Further, even if the output current value of the heater power supply 1 is maintained at the rated value to the end without increasing from the middle, the dimming of 0 to 100% is possible. In short, when the output current value of the discharge power source 2 is reduced and the fluorescent lamp 7 is darkened, the output current value of the heater power source 1 is maintained at the rated value without being reduced, or is maintained. By gradually increasing to 0
This means that a stable dimming of １００100% becomes possible. In addition, the frequency of the output current of the heater power supply 1 and the discharge power supply 2 is set to 65 kHz. However, the present invention is not limited to this, and the influence on other equipment and the ease of designing the current transformer are considered. In consideration of this, the frequency can be appropriately set in the range of about 1 to 100 kHz, and it is not always necessary that both have the same frequency.
【００１１】[0011]
【発明の効果】以上説明したとおり、この発明の高周波
定電流給電方式による蛍光灯調光システムは、高周波定
電流給電方式により点灯した蛍光灯を０〜１００％の広
い範囲で安定にかつ確実に調光することができ、蛍光灯
を暗くした状態で消灯し再び消灯時と同じ状態で点灯す
ることができ、また、同一給電系統に多数の蛍光灯を接
続しておけばこれらすべてを同時に調光することができ
るからホール等の広い場所の調光を容易に行なうことが
できるという効果を奏する。As described above, the fluorescent lamp dimming system using the high-frequency constant current power supply system according to the present invention can stably and reliably operate a fluorescent lamp lit by the high-frequency constant current power supply system in a wide range of 0 to 100%. Light can be dimmed, the fluorescent lamp can be turned off in a darkened state and turned on again in the same state as when the lamp is turned off.If a large number of fluorescent lamps are connected to the same power supply system, all of them can be adjusted simultaneously. Since light can be emitted, there is an effect that light can be easily adjusted in a wide place such as a hall.
【図１】この発明の高周波定電流給電方式による蛍光灯
調光システムの実施例の概略図FIG. 1 is a schematic diagram of an embodiment of a fluorescent lamp dimming system using a high-frequency constant current power supply system according to the present invention.
１ ヒーター電力用電源 ２ 放電電力用電源
３、４ ループコード ５、６、７ 電流トランス ８ 調光手段1 Power supply for heater power 2 Power supply for discharge power
3, 4 loop code 5, 6, 7 current transformer 8 dimming means
Claims (2)
れたループコードを遊貫した２個のヒーター用電流トラ
ンスの二次巻線を蛍光灯の２つのヒーターにそれぞれ接
続するとともに放電電力用高周波定電流電源に接続され
たループコードを遊貫した１個の放電用電流トランスの
二次巻線を蛍光灯の２つのヒーター間に接続し、放電電
力用高周波定電流電源の出力電流値を変化させて蛍光灯
を調光することを特徴とする高周波定電流給電方式によ
る蛍光灯調光システム。1. A secondary winding of two current transformers for a heater having a loop cord connected to a high frequency constant current power supply for a heater power is connected to two heaters of a fluorescent lamp, respectively, and a high frequency for a discharge power is connected. The secondary winding of one discharge current transformer with a loop cord connected to the constant current power supply is connected between the two heaters of the fluorescent lamp to change the output current value of the high frequency constant current power supply for discharge power A fluorescent lamp dimming system using a high-frequency constant current power supply system, wherein the fluorescent lamp is dimmed.
を所定値以下に減少させたときヒーター電力用高周波定
電流電源の出力電流値を増加させることを特徴とする請
求項１の高周波定電流給電方式による蛍光灯調光システ
ム。2. The high-frequency constant current source according to claim 1, wherein the output current value of the high-frequency constant current power source for heater power is increased when the output current value of the high-frequency constant current power source for discharge power is reduced to a predetermined value or less. Fluorescent light dimming system using current feeding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282735A JP2979287B2 (en) | 1994-10-22 | 1994-10-22 | Fluorescent light dimming system using high-frequency constant current power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282735A JP2979287B2 (en) | 1994-10-22 | 1994-10-22 | Fluorescent light dimming system using high-frequency constant current power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08124692A JPH08124692A (en) | 1996-05-17 |
| JP2979287B2 true JP2979287B2 (en) | 1999-11-15 |
Family
ID=17656372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6282735A Expired - Fee Related JP2979287B2 (en) | 1994-10-22 | 1994-10-22 | Fluorescent light dimming system using high-frequency constant current power supply system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2979287B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157192A (en) * | 1984-01-17 | 1985-08-17 | 三菱電機株式会社 | Device for firing discharge lamp |
| JPH06203990A (en) * | 1992-12-26 | 1994-07-22 | U R D:Kk | Fluorescent lamp dimmer system |
-
1994
- 1994-10-22 JP JP6282735A patent/JP2979287B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08124692A (en) | 1996-05-17 |
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