JPS59119699A - Dimmer - Google Patents

Dimmer

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Publication number
JPS59119699A
JPS59119699A JP22690282A JP22690282A JPS59119699A JP S59119699 A JPS59119699 A JP S59119699A JP 22690282 A JP22690282 A JP 22690282A JP 22690282 A JP22690282 A JP 22690282A JP S59119699 A JPS59119699 A JP S59119699A
Authority
JP
Japan
Prior art keywords
bidirectional
current
terminal thyristor
fluorescent lamp
control device
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.)
Pending
Application number
JP22690282A
Other languages
Japanese (ja)
Inventor
俊夫 小林
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.)
Hitachi Lighting Ltd
Original Assignee
Hitachi Lighting 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 Hitachi Lighting Ltd filed Critical Hitachi Lighting Ltd
Priority to JP22690282A priority Critical patent/JPS59119699A/en
Publication of JPS59119699A publication Critical patent/JPS59119699A/en
Pending legal-status Critical Current

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  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は予熱始動形蛍光ランプの調光装置に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dimming device for a preheating start type fluorescent lamp.

予熱始動形蛍光ランプを使用して調光する場合には、該
予熱始動形蛍光ランプの電極が常時予熱されていないた
め螢光ランプを流れる電流の休止期間が長くなるにつれ
て上記予熱始動形蛍光ランプの再点弧電圧が上昇し、つ
いには安定放電を維持できなくなって立消えを生じる。
When dimming using a preheating start type fluorescent lamp, since the electrodes of the preheating start type fluorescent lamp are not always preheated, the period of rest of the current flowing through the fluorescent lamp becomes longer. The restrike voltage increases, and eventually a stable discharge cannot be maintained and the battery goes out.

第1図は予熱始動形蛍光ランプの調光装置の従来例を示
す回路図(特開昭57−11498)で、電源1にチョ
ークコイル2.予熱始動形螢光ランプ3.双方向性3端
子サイリスタ7およびこれに並列に接続された抵抗6を
直列に接続して閉回路を形成し、上記双方向性3端子サ
イリスタ7のゲートには逆並列に接続したダイオード9
.10をサイリスタ11の向きに一致させて接続し、該
サイリスタ11にけ点弧パルス発生回路13と抵抗12
よりなる導通制御手段と金波整流器14を接続して構成
している。抵抗8は上記双方向性3端子サイリスタ7の
ゲート信号調整用抵抗で、抵抗5はサイリスタ11を通
る電流の制限抵抗である。なお予熱始動形蛍光ランプ6
の非電源側端子にはグロースタータ4のような始動装置
を並列に接続している。上記従来例では双方向性3端子
サイリスタ7が非導通の間は抵抗6全通してわずかなラ
ンプ電流を流し、予熱始動形蛍光ランプ3の再点弧電碇
が上昇して立消えになるのを防いでいる。、Q弧パルス
発生回路131Cよって電源周波数VC同期した任意の
、tW、、、A*Tl@%”;Ahfc、A vy、@
%KJ= り+、(+) x p ”11を導通させる
と、電流は電源1、抵抗55゜全波整流器14.サイリ
スタ11.全波整流器14を通して流れ、上記サイリス
タ11が導通している間は電源1.チョークコイル2.
予熱始動形弧棺光ランプ3%抵抗8、ダイオード9.サ
イリスタ11、全波整流器14を通して電流が流れ、双
方向性3端子サイリスタ7のゲート、カソード間に導通
信号廼2入るため確実に上記双方向性54i子サイリス
タ7を導通させて調光動作を行う。導通のためのパルス
信号は点弧パルス発生回路16から出力されるが、蛍光
灯回路が誘導性であるため上記双方向性3端子サイリス
タ7t;導通ずるまでゲート電流を流しつづける必要が
あり、またサイリスタ11の導通を保持するためには比
較的大きな保持電流を抵抗5を通して供給するので一該
抵抗5の損失が大きいという欠点があった。
FIG. 1 is a circuit diagram (Japanese Patent Application Laid-Open No. 57-11498) showing a conventional example of a dimming device for a preheating start type fluorescent lamp, in which a power source 1 is connected to a choke coil 2. Preheating start type fluorescent lamp 3. A bidirectional three-terminal thyristor 7 and a resistor 6 connected in parallel thereto are connected in series to form a closed circuit, and a diode 9 is connected in antiparallel to the gate of the bidirectional three-terminal thyristor 7.
.. 10 is connected in the same direction as the thyristor 11, and the ignition pulse generating circuit 13 and the resistor 12 are connected to the thyristor 11.
The conduction control means and the gold wave rectifier 14 are connected to each other. The resistor 8 is a resistor for adjusting the gate signal of the bidirectional three-terminal thyristor 7, and the resistor 5 is a resistor for limiting the current passing through the thyristor 11. In addition, preheating start type fluorescent lamp 6
A starting device such as a glow starter 4 is connected in parallel to the non-power supply side terminal of. In the above conventional example, while the bidirectional three-terminal thyristor 7 is not conducting, a small lamp current flows through the resistor 6 to prevent the re-ignition power of the preheating start type fluorescent lamp 3 from rising and turning off. Preventing. , an arbitrary tW synchronized with the power supply frequency VC by the Q arc pulse generation circuit 131C.
%KJ= ri +, (+) Power source 1. Choke coil 2.
Preheating start type arc coffin light lamp 3% resistance 8, diode 9. A current flows through the thyristor 11 and the full-wave rectifier 14, and a conductive signal line 2 enters between the gate and cathode of the bidirectional three-terminal thyristor 7, thereby ensuring conduction of the bidirectional 54i child thyristor 7 to perform dimming operation. . A pulse signal for conduction is output from the ignition pulse generation circuit 16, but since the fluorescent lamp circuit is inductive, it is necessary to keep the gate current flowing until the bidirectional three-terminal thyristor 7t becomes conductive. In order to maintain conduction of the thyristor 11, a relatively large holding current is supplied through the resistor 5, which has the disadvantage that the loss in the resistor 5 is large.

本発明は上記の欠点を除き損失が少い調光装置を得るた
めに、予熱始動形蛍光ランプの点灯体止期間中にわずか
なランプ這流を流し再点弧電圧の上昇を防ぐインピーダ
ンス素子に双方向性3端子サイリスタのゲート電流を供
給する機能を併せてもたせたことを特徴とする。
In order to eliminate the above-mentioned drawbacks and obtain a dimming device with low loss, the present invention uses an impedance element that allows a small amount of lamp current to flow during the lighting period of a preheat-start type fluorescent lamp to prevent a rise in the restriking voltage. It is characterized in that it also has the function of supplying gate current to a bidirectional three-terminal thyristor.

つぎに本発明の実施例を図面により説明する。Next, embodiments of the present invention will be described with reference to the drawings.

第2図は本発明による予熱始動形蛍光ランプの調光装置
を示す回路図、第3図は上記調光装置の動作波形図で、
(a)けチョークコイル2七予熱始動形螢光リンプ3の
両端電圧および予熱始動形螢光うンプ乙のランプ電流を
示し、 I’b)はトランジスタ19に対するゲート信
号発生回路20のベース駆動電圧、(C)は全波整流器
14の交流側電圧波形をそれぞれ示している。第2図に
示すようにチョークコイル2と予熱始動形蛍光ランプ3
と主電流制御装置Aの直列回路を電源1に接続する。上
記主電流制御装置Aは、その電源側端子a、b間に双方
向性3端子サイリスタ7を接続し、インピーダンス素子
である抵抗15の一端を上記双方向性3端子サイリスタ
7の一端に接続し、上記抵抗15の他端はトリガ素子1
6を介して双方向性3端子サイリスタ7のゲートに接続
し、抵抗15とトリガ素子16の接続点と上記双方向性
3端子サイリスタ7の他端との間には、抵抗18と電流
スイッチとしてのトランジスター9と、該トランジスタ
ー9に流れる電流を電源周波数に同期して遮断する信号
を発生するゲート信号発生回路20との並列回路を、全
波整流器14を介して接続してなる。ダイオード17と
コンデンサ21け上記双方向性3端子サイリスタ7の非
導通時に抵抗18の電圧降下によって上記ゲート信号発
生回路20の電源を供給するが、上記ゲート信号発生回
路20の構成によってはこれらダイオード17とコンデ
ンサ21が不要となる場合もある。なお上記抵抗18の
値はその端子電圧がトリガ素子16のブレークオーバ電
圧以下であるように設定する。また上記トランジスタ1
9の代りにゲートターンオフサイリス° 4  ゛ りを使用すれば全波整流器14ijなくてもよい。
FIG. 2 is a circuit diagram showing a dimmer device for a preheating start type fluorescent lamp according to the present invention, and FIG. 3 is an operating waveform diagram of the dimmer device.
(a) shows the voltage across the choke coil 27, the preheating start type fluorescent lamp 3, and the lamp current of the preheating start type fluorescent lamp B, and I'b) shows the base drive voltage of the gate signal generation circuit 20 for the transistor 19. , (C) show the AC side voltage waveforms of the full-wave rectifier 14, respectively. As shown in Figure 2, a choke coil 2 and a preheating start type fluorescent lamp 3
and the series circuit of the main current control device A are connected to the power supply 1. The main current control device A has a bidirectional three-terminal thyristor 7 connected between its power supply side terminals a and b, and one end of a resistor 15, which is an impedance element, is connected to one end of the bidirectional three-terminal thyristor 7. , the other end of the resistor 15 is the trigger element 1
6 to the gate of the bidirectional three-terminal thyristor 7, and between the connection point of the resistor 15 and the trigger element 16 and the other end of the bidirectional three-terminal thyristor 7, a resistor 18 and a current switch are connected. A parallel circuit consisting of a transistor 9 and a gate signal generation circuit 20 that generates a signal to cut off the current flowing through the transistor 9 in synchronization with the power supply frequency is connected via a full-wave rectifier 14. A diode 17 and a capacitor 21 supply power to the gate signal generation circuit 20 by the voltage drop across the resistor 18 when the bidirectional three-terminal thyristor 7 is non-conducting. In some cases, the capacitor 21 becomes unnecessary. Note that the value of the resistor 18 is set so that its terminal voltage is below the breakover voltage of the trigger element 16. In addition, the transistor 1
If a gate turn-off syringe 4 is used instead of 9, the full-wave rectifier 14ij can be omitted.

上記の回路において第3図の波形囲包)に示すようにチ
ョークコイル2によってランプN流xlは予熱始動形蛍
光ランプ3とチョークコイル2の両端電圧Voよシ位相
角θだけ遅れ、前の半サイクルの電流が流れ終る時刻も
、でゲート信号発生回路20から第3図■)に示すベー
ス駆動電圧を発生しトランジスタ19のベースにベース
電流が供給されると%該トランジスタ19が導通し抵抗
15により制限されたわずかなランプ電流が電源1、チ
ョークコイル2.予熱始動形螢光ツンブ3、抵抗15、
全波整流器14.抵抗18% トランジスタ19、全波
整流器14のように流れ、予熱始動形蛍光ランプ3の再
点弧電圧の上昇を防ぐ。また時刻t、で上記トランジス
タ19のベース電流が断たれトランジスタ19≠:非導
通になると、全波整流器14の交流(Ill電圧は第3
1J(Q)に示すように急上昇し、トリガ素子16のブ
レークオーバー電圧に達し該トリガ素子16か導通する
In the above circuit, as shown in the waveform envelope in Figure 3, the lamp N current xl is delayed by the phase angle θ from the voltage Vo across the preheating start type fluorescent lamp 3 and the choke coil 2 due to the choke coil 2, and is delayed by the phase angle θ due to the choke coil 2. At the time when the cycle current ends, the gate signal generating circuit 20 generates the base drive voltage shown in FIG. A small lamp current limited by the power supply 1, choke coil 2. Preheating start type fluorescent tube 3, resistor 15,
Full wave rectifier 14. Resistance 18% Flows like the transistor 19 and full wave rectifier 14 to prevent the re-ignition voltage of the preheating start type fluorescent lamp 3 from rising. Further, at time t, when the base current of the transistor 19 is cut off and the transistor 19≠ becomes non-conductive, the alternating current (Ill voltage) of the full-wave rectifier 14 is
The voltage rises rapidly as shown at 1J(Q), reaches the breakover voltage of the trigger element 16, and the trigger element 16 becomes conductive.

し′fc≠2つて上記抵抗15を流れていf?、、電流
はドリガ素子16、双方向性34子サイリスタ7のゲー
ト、カソードを通して流れるため該双方向性3端子サイ
リスタ7は確実に導通し、予熱始動形螢光うンプ乙に、
重訂に必要なランプ電流T土を流して時刻t11まで調
光点灯する。ランプ電流工1が流れ終る時刻tIlでゲ
ート信号発生回路20からトランジスタ19に再びベー
ス′ば流ぷ供給され」二記の動作帽繰返される。上記の
ように双方向性3端子サイリヅタ7−74通して(ハな
いMn1fは抵抗15を通して電流を流し予熱始動形蛍
光ランプ6の導通を維持し、双方向性3端子サイリスタ
7の導通開始時には抵抗15は該双方向性3瑞子サイリ
スクのゲート電流を供給する。
Then, fc≠2 flows through the resistor 15, and f? Since the current flows through the trigger element 16, the gate and cathode of the bidirectional 34-terminal thyristor 7, the bidirectional 3-terminal thyristor 7 is reliably conductive, and the preheat-start type fluorescent pump B is activated.
The lamp current T required for revision is applied and the lamp is dimmed until time t11. At time tIl when the lamp current 1 finishes flowing, the gate signal generating circuit 20 supplies the base current again to the transistor 19, and the above two operations are repeated. As described above, Mn1f passes current through the bidirectional three-terminal thyristor 7-74 (C) through the resistor 15 to maintain conduction of the preheating start type fluorescent lamp 6, and when the bidirectional three-terminal thyristor 7 starts conduction, the resistor 15 supplies the gate current of the two-way three-channel circuit.

本発明は上記のように予熱始面1形螢光ランプの点灯休
止時間である双方向性3端子サイリスタの非導通時にわ
ずかなランプ電流を流して上記予熱始動形蛍光ランプの
再点弧電圧の上昇を防ぐインピーダンス素子に、上記双
方向性3端子サイリスタのゲート電流を供給する機能を
もたせたため。
As described above, the present invention supplies a small amount of lamp current when the bidirectional three-terminal thyristor is non-conducting during the lighting down time of the preheating start type 1 type fluorescent lamp, thereby increasing the restriking voltage of the preheating start type fluorescent lamp. This is because the impedance element that prevents the increase in impedance has the function of supplying the gate current of the bidirectional three-terminal thyristor.

第1図の従来例において点灯期間中電流スイッチのサイ
リスタ11にその導通を保持する比較的大きな保持電流
を流すため抵抗5に生じていた損失がなくなり、低損失
の調光装#を得ることができる。また本発明による調光
装置はその調光動作部分である主電流制御装置が2端子
で構成されているから、壁面等に調光装置を設置して遠
隔操作により調光する場合従来例より配線本数が少くて
すみ有利である。
In the conventional example shown in FIG. 1, a relatively large holding current is passed through the thyristor 11 of the current switch to keep it conductive during the lighting period, so the loss occurring in the resistor 5 is eliminated, and a low-loss dimming device # can be obtained. can. In addition, in the light control device according to the present invention, the main current control device, which is the part that operates the light control, is composed of two terminals, so when installing the light control device on a wall or the like and controlling the light by remote control, wiring is required compared to the conventional method. It is advantageous because the number of pieces is small.

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

第1図は従来の予熱始動形蛍光ランプの調光装置を示す
回路図、第2図は本発明による予熱始動形蛍光ランプの
調光装置を示す回路図、第3図(a)、(b)−(c)
は上記調光装置の動作を説明するための各部の電圧、電
流を示す波形図である。 1・・・電源、2・・・チョークコイル、3・・・予熱
始動形蛍光ランプ、7・・・双方向性ろ端子サイリスタ
。 15・・・インピーダンス素子である抵抗−16・・・
トリガ素子、19・・・電流スイッチであるトランジス
タ、20・・・ゲート信号発生回路、A・・・主電流制
御装置。 代理人 弁理士  薄  1) 利  幸第2図 第  3 図
FIG. 1 is a circuit diagram showing a conventional dimmer device for a preheating start type fluorescent lamp, FIG. 2 is a circuit diagram showing a dimmer device for a preheating start type fluorescent lamp according to the present invention, and FIGS. 3(a) and (b). )-(c)
FIG. 2 is a waveform diagram showing voltages and currents at various parts for explaining the operation of the light control device. 1... Power supply, 2... Choke coil, 3... Preheating start type fluorescent lamp, 7... Bidirectional filter terminal thyristor. 15...Resistance which is an impedance element -16...
Trigger element, 19...Transistor serving as a current switch, 20...Gate signal generation circuit, A...Main current control device. Agent Patent Attorney Usui 1) Toshiyuki Figure 2 Figure 3

Claims (1)

【特許請求の範囲】 φヨークコイルと予熱始動形蛍光ランプと主電流制御装
置の直列回路を電源に接続してなる調光装置において、
上記主電流制御装置を、その電源側端子間に接続した双
方向性3端子サイリスタと。 一端を上記双方向性3端子サイリスタの一端に接続し他
端をトリガ素子を介して上記双方向性3端子サイリスタ
のゲートに接続したインピーダンス素子と、該インピー
ダンス素子と前記トリガ素子との接続点と上記双方向性
3端子サイリスタの他端との間に接続した電流スイッチ
および電源周波数に同期して該電流スイッチの電源′j
ta断する信号を発する信号発生回路により構成したこ
とを特徴とする調光装置。
[Claims] A light control device comprising a series circuit of a φ yoke coil, a preheating start type fluorescent lamp, and a main current control device connected to a power source,
The main current control device is a bidirectional three-terminal thyristor connected between its power supply side terminals. an impedance element having one end connected to one end of the bidirectional three-terminal thyristor and the other end connected to the gate of the bidirectional three-terminal thyristor via a trigger element, and a connection point between the impedance element and the trigger element; A current switch connected between the other end of the bidirectional 3-terminal thyristor and a power supply 'j of the current switch in synchronization with the power supply frequency.
1. A light control device comprising a signal generation circuit that emits a signal to turn off the light.
JP22690282A 1982-12-27 1982-12-27 Dimmer Pending JPS59119699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22690282A JPS59119699A (en) 1982-12-27 1982-12-27 Dimmer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22690282A JPS59119699A (en) 1982-12-27 1982-12-27 Dimmer

Publications (1)

Publication Number Publication Date
JPS59119699A true JPS59119699A (en) 1984-07-10

Family

ID=16852380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22690282A Pending JPS59119699A (en) 1982-12-27 1982-12-27 Dimmer

Country Status (1)

Country Link
JP (1) JPS59119699A (en)

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