JPS584436B2 - Keikoutoushidosouchi - Google Patents
KeikoutoushidosouchiInfo
- Publication number
- JPS584436B2 JPS584436B2 JP49007376A JP737674A JPS584436B2 JP S584436 B2 JPS584436 B2 JP S584436B2 JP 49007376 A JP49007376 A JP 49007376A JP 737674 A JP737674 A JP 737674A JP S584436 B2 JPS584436 B2 JP S584436B2
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- circuit
- voltage
- fluorescent lamp
- preheating
- 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
Links
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
【発明の詳細な説明】 本発明は螢光灯始動装置に而する。[Detailed description of the invention] The present invention is directed to a fluorescent lamp starting device.
一般に螢光灯を起動点灯するためには螢光灯フィラメン
トを予熱し、螢光灯電極間に高電圧を印加することが必
要である。Generally, in order to start and light a fluorescent lamp, it is necessary to preheat the fluorescent lamp filament and apply a high voltage between the fluorescent lamp electrodes.
本発明は高電圧発生用のサイリスタ(例えばSCR)を
用いた発振回路と、予熱電流を流すサイリスタ(例えば
SSS)を用いて、螢光灯の点灯まで毎サイクル、1サ
イクル中の半サイクルでキック電圧を発生させ、他の半
サイクルで予熱電流を供給する様に作動し、螢光灯点灯
後はその動作を停止する螢光灯始動器に於て、螢光灯点
灯後の始動器の動作停止を確実に行わせることを目的と
するものである。The present invention uses an oscillation circuit using a thyristor (for example, SCR) for generating high voltage and a thyristor (for example, SSS) for flowing preheating current, and kicks the fluorescent lamp at every cycle and half cycle of one cycle until the fluorescent lamp lights up. In a fluorescent lamp starter that operates to generate voltage and supply preheating current during the other half cycle, and then stops its operation after the fluorescent lamp is turned on, the operation of the starter after the fluorescent lamp is turned on. The purpose is to ensure that the system stops.
従来例の螢光灯始動装置は第1図に示す様に、安定器L
を直列に接続した螢光灯Fの非電源側フイラメントf1
−f2間に、安定器Lとの協調で高圧キック電圧を発生
するサイリスタQ1(例えばSCR)そのバイアス抵抗
R1,R2及びQ1のカソードと直列に接続した抵抗R
3AコンデンサCで構成される発振回路A、螢光灯のフ
ィラメントに予熱電流を供給するダイオードDとサイリ
スタQ2(例えばSSS)で構成される予熱回路Bを各
々接続したものであり、電源電圧Eの半サイクルで発振
回路Aが作動して高圧キック電圧を発生し、他の半サイ
クルで予熱回路Bが作動して予熱電流を供給するもので
ある。As shown in Figure 1, the conventional fluorescent lamp starting device has a ballast L.
The filament f1 on the non-power side of the fluorescent lamp F connected in series with
- f2, a thyristor Q1 (e.g. SCR) which generates a high kick voltage in cooperation with the ballast L, its bias resistors R1, R2 and a resistor R connected in series with the cathode of Q1.
An oscillation circuit A consisting of a 3A capacitor C, a preheating circuit B consisting of a diode D supplying a preheating current to the filament of a fluorescent lamp, and a thyristor Q2 (for example, SSS) are connected, and the power supply voltage E is In one half cycle, oscillation circuit A operates to generate a high-voltage kick voltage, and in the other half cycle, preheating circuit B operates to supply preheating current.
以上の動作をするためには、螢光灯が点灯する以前の予
熱状態では、電源電圧Eのピーク電圧以下の電圧でQ1
が点弧する様にバイアス抵抗R1,R2を又Q2が点弧
する様にVBOを設定し、螢光灯Fが点灯後はQt,Q
2が点弧しない様にバイアス抵抗R1,R2及びQ2の
VBOを設定しなければならず、特にSCRの様なゲー
ト感度を安定に設計することのむずかしいサイリスタは
、バイアス抵抗R,,R2を安定にとることは困難であ
った。In order to perform the above operation, in the preheating state before the fluorescent lamp lights up, Q1 must be set at a voltage below the peak voltage of the power supply voltage E.
Bias resistors R1 and R2 are set so that Q2 is turned on, and VBO is set so that Q2 is turned on. After fluorescent lamp F is turned on, Qt and Q are set.
It is necessary to set the VBO of bias resistors R1, R2, and Q2 so that 2 does not fire. In particular, for thyristors such as SCRs, where it is difficult to design gate sensitivity stably, bias resistors R, , R2 must be set to be stable. It was difficult to take it.
本発明は上記の欠点を改善するために提案されたもので
ある。The present invention has been proposed to improve the above-mentioned drawbacks.
次に本発明の実施例を図面について説明しよう。Next, embodiments of the present invention will be described with reference to the drawings.
本発明は第2図に示す様に、同じく螢光灯Fの非電源側
フイラメントf1−f2間に、第1図で示したサイリス
タQl,Rl,R2,C,R3で構成される発振回路A
の抵抗R2と直列に、同じくダイオードDとサイリスタ
Q2で構成される予熱回路BのサイリスタQ2で接続し
たものを接続して、電源の半サイクルでサイリスタQ2
を介してバイアス抵抗R2,R1に電圧を印加してQ1
を点弧導通させ、発振回路Aが作動して高圧キック電圧
を発生し、他の半サイクルでダイオードD1サイリスタ
Q2を介して予熱電流を供給するものである。As shown in FIG. 2, the present invention also provides an oscillation circuit A composed of thyristors Ql, Rl, R2, C, and R3 shown in FIG.
thyristor Q2 of preheating circuit B, which also consists of diode D and thyristor Q2, is connected in series with resistor R2 of
Apply voltage to bias resistors R2 and R1 via Q1
The oscillation circuit A operates to generate a high-voltage kick voltage, and in the other half cycle, a preheating current is supplied via the diode D1 and the thyristor Q2.
第3図は本発明の他の実施例を示すもので、その構成に
ついて説明すれば螢光灯Fの非電源側フィラメントf1
−f2間に第1図で示した発振回路Aと予熱電流を流す
サイリスタQ2を直列接続したものを接続し、発振回路
Aと逆並列にダイオードDを接続したもので、DとQ2
で予熱回路Bを形成する。FIG. 3 shows another embodiment of the present invention, and its structure will be explained as follows: filament f1 on the non-power side of the fluorescent lamp F;
A series connection of the oscillation circuit A shown in Figure 1 and a thyristor Q2 that flows a preheating current is connected between -f2, and a diode D is connected in antiparallel to the oscillation circuit A.
A preheating circuit B is formed.
第2図に示す本発明回路の螢光灯点灯以前の予熱時動作
を第4図について説明する。The operation of the circuit of the present invention shown in FIG. 2 during preheating before lighting the fluorescent lamp will be explained with reference to FIG.
なお、第4図中、eは電源Eの瞬時電圧、■Q1はサイ
リスタQ1のアノード・カソード間電圧、■Q2はサイ
リスタQ2”両端電圧、iはフィラメント電流、voは
コンデンサCの端子電圧AvFは螢光灯Fの管電圧であ
る。In Figure 4, e is the instantaneous voltage of power supply E, Q1 is the voltage between the anode and cathode of thyristor Q1, Q2 is the voltage across thyristor Q2, i is the filament current, and vo is the terminal voltage AvF of capacitor C. This is the tube voltage of fluorescent lamp F.
今時刻t。Current time t.
でフィラメンgf2側が正のサイクルになるものとする
。Assume that the filament gf2 side is in a positive cycle.
時刻t1で今までL−f1D−Q2−f2を介して流れ
ていたフィラメント予熱電流iが零になると、その位相
での電源電圧.eがフィラメントf2−f1間に印加さ
れる。When the filament preheating current i that has been flowing through L-f1D-Q2-f2 becomes zero at time t1, the power supply voltage at that phase. e is applied between filaments f2-f1.
その電圧がサイリスタQ2のブレークオーバー電圧VB
Oに達する時刻t2でサイリスタQ2は点弧導通され、
バイアス抵抗R2を介してサイリスタQ1のゲート信号
が印加されサイリスタQ1は点,弧導通し、コンデンサ
Cの充電電流がf2−Q1−C−f1−Lを介して流れ
コンデンサCを充電し、その端子電圧vcは図示の知く
上昇していく。That voltage is the breakover voltage VB of thyristor Q2.
At time t2 when O is reached, thyristor Q2 is turned on,
The gate signal of the thyristor Q1 is applied through the bias resistor R2, and the thyristor Q1 becomes conductive between point and arc, and the charging current of the capacitor C flows through f2-Q1-C-f1-L, charging the capacitor C and its terminal. The voltage vc increases as shown in the figure.
時刻t3でコンデンサC充電電圧が大きくなり、サイリ
スタQ1のケート・カソードを逆バイアス;するためサ
イリスタQ,はカットオンされる。At time t3, the charging voltage of the capacitor C increases, and the thyristor Q is cut on to reverse bias the gate cathode of the thyristor Q1.
その時今まで流れていたサイリスタQ1のアノード電流
が急速に減少するので、安定器LにLdi/dtのキツ
ク電圧を発生し、螢光灯Fにパルス状の高電圧VFを与
える。At that time, the anode current of the thyristor Q1 that has been flowing so far decreases rapidly, so a kick voltage of Ldi/dt is generated in the ballast L, and a pulsed high voltage VF is applied to the fluorescent lamp F.
時刻t4で電源電圧位相が反転し、フィラメントf1側
が正のサイクルになる。At time t4, the power supply voltage phase is reversed, and the filament f1 side becomes a positive cycle.
時刻t5で電源電圧がサイリスタQ2のVBOに達する
とQ2は点弧導通し予熱電流がL−f1−D−Q2−f
2を介して流れる。When the power supply voltage reaches VBO of thyristor Q2 at time t5, Q2 is turned on and the preheating current becomes L-f1-D-Q2-f.
Flows through 2.
時刻t6でコンデンサCに充電された電荷がR3を介し
て放電完了される。At time t6, the electric charge charged in the capacitor C is completely discharged via R3.
時刻t7で再度フィラメントf2側が正のサイクルにな
り、この時には予熱電流はLの遅れのため、まだ流れて
いる。At time t7, the filament f2 side becomes a positive cycle again, and at this time, the preheating current is still flowing due to the delay of L.
以下時刻t。以後の動作を繰返して行うことになる。Time t below. The subsequent operations will be repeated.
同様にして第5図について螢光灯点灯時の勲作を説明す
ると、今時刻t0でフィラメンgf2側が正のサイクル
になり、時刻t1で螢光灯点灯電圧位相が反転し、f2
側が正になり、螢光灯の点灯電圧ピーク値VFPがサイ
リスタQ2に印加される。In the same way, to explain the feat when lighting the fluorescent lamp with reference to FIG. 5, at current time t0, the filament gf2 side enters a positive cycle, and at time t1, the fluorescent lamp lighting voltage phase is reversed, and f2
side becomes positive, and the lighting voltage peak value VFP of the fluorescent lamp is applied to the thyristor Q2.
サイリスタQ2のVBOがVFP以上に設定すればサイ
リスタQ2ぱ点弧せず、従ってサイリスタQ1も点弧導
通しない。If VBO of thyristor Q2 is set above VFP, thyristor Q2 will not fire, and therefore thyristor Q1 will not fire.
時刻t2でフィラメントf1側が正のサイクルになり、
時刻t3で螢光灯点灯電圧位相が反転し、f1側が正に
なる。At time t2, the filament f1 side enters a positive cycle,
At time t3, the fluorescent lamp lighting voltage phase is reversed, and the f1 side becomes positive.
しかしその時の螢光灯点灯電圧ピーク値VFPがVBO
以下であればサイリスタQ2は点弧しない。However, the fluorescent lamp lighting voltage peak value VFP at that time is VBO
If it is below, thyristor Q2 will not fire.
即ち螢光灯魚灯時にはキック電圧も、予熱電流も供給さ
れない。That is, neither kick voltage nor preheating current is supplied when the fluorescent fish lamp is used.
以上の説明の様にサイリスタQ1のゲート抵抗R2と直
列にサイリスタQ1を接続し、かつサイリスタQ2のV
BOを螢光灯点灯電圧のピーク値vF,<VBoく電源
電圧Eのピーク値EPに設定することにより、螢光灯点
灯以前の予熱時には高圧パルス電圧と、予熱電流を供給
し、螢光灯点灯時にはサイリスタQ1のゲート感度に関
係なく始動器の動作を停止することができるのでサイリ
スタQ1の自由度が増大し、スタータの工業生産を容易
にする。As explained above, thyristor Q1 is connected in series with the gate resistance R2 of thyristor Q1, and the V of thyristor Q2 is
By setting BO to the peak value of the fluorescent lamp lighting voltage vF, < VBo and the peak value EP of the power supply voltage E, a high voltage pulse voltage and a preheating current are supplied during preheating before lighting the fluorescent lamp, and the fluorescent lamp During lighting, the operation of the starter can be stopped regardless of the gate sensitivity of the thyristor Q1, which increases the degree of freedom of the thyristor Q1 and facilitates industrial production of the starter.
第1図は従来の螢光灯始動器、第2図は本発明の螢光灯
始動装置、第3図は本発明の他の実施例、第4図e−V
Fは予熱器、第5図は点灯時の各部の電圧又は電流波形
を示す。
F・・・螢光灯、f1,f2・・・フィラメント、L・
・・安定器、E・・・電源、QltQ2・・・サイリス
タ、R1,R2,Ra・・・抵抗、C・・・コンデンサ
、A・・・発振回路、B・・・予熱回路。FIG. 1 shows a conventional fluorescent lamp starter, FIG. 2 shows a fluorescent lamp starter according to the present invention, FIG. 3 shows another embodiment of the present invention, and FIG. 4 e-V
F is a preheater, and FIG. 5 shows voltage or current waveforms at various parts during lighting. F... Fluorescent lamp, f1, f2... Filament, L.
... Ballast, E... Power supply, QltQ2... Thyristor, R1, R2, Ra... Resistor, C... Capacitor, A... Oscillation circuit, B... Preheating circuit.
Claims (1)
ント間に、電源の半サイクルに、サイリスタを用いたサ
イリスタオンーオフ時に安定器にキック電圧を発生す乞
発振回路と、他の半サイクルに予熱電流を流すサイリス
タを掬いた予熱回路で構成される始動器を接続した螢光
灯点灯回路に於で、前記廃振回路のサイリスタのゲート
点弧信号を与える抵抗分圧回路の一端を前記予熱回路の
サイリスタを介してフィラメントの非電源側端子に接続
し、予熱回路のサイリスタがフレークヰーバーした際に
抵抗分圧回路に加わる電圧により発振回路のサイリスタ
が点弧導通することを特徴とした螢光灯始動装置。1. Between the filaments on the non-power side of a fluorescent lamp in which a ballast is inserted in series, an oscillation circuit that uses a thyristor to generate a kick voltage to the ballast when the thyristor is turned on and off during one half cycle of the power supply, and the other half are installed. In a fluorescent lamp lighting circuit connected to a starter consisting of a preheating circuit that scoops a thyristor that passes a preheating current in the cycle, one end of a resistor voltage divider circuit that provides a gate firing signal for the thyristor of the vibration-absorbing circuit is connected. The thyristor of the oscillation circuit is connected to the non-power supply side terminal of the filament via the thyristor of the preheating circuit, and when the thyristor of the preheating circuit flakes over, the voltage applied to the resistive voltage divider circuit causes the thyristor of the oscillation circuit to fire and conduct. Fluorescent light starting device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49007376A JPS584436B2 (en) | 1974-01-14 | 1974-01-14 | Keikoutoushidosouchi |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49007376A JPS584436B2 (en) | 1974-01-14 | 1974-01-14 | Keikoutoushidosouchi |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS50102182A JPS50102182A (en) | 1975-08-13 |
JPS584436B2 true JPS584436B2 (en) | 1983-01-26 |
Family
ID=11664230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49007376A Expired JPS584436B2 (en) | 1974-01-14 | 1974-01-14 | Keikoutoushidosouchi |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS584436B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4859683A (en) * | 1971-11-27 | 1973-08-21 | ||
JPS497377A (en) * | 1972-05-11 | 1974-01-23 |
-
1974
- 1974-01-14 JP JP49007376A patent/JPS584436B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4859683A (en) * | 1971-11-27 | 1973-08-21 | ||
JPS497377A (en) * | 1972-05-11 | 1974-01-23 |
Also Published As
Publication number | Publication date |
---|---|
JPS50102182A (en) | 1975-08-13 |
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