TWI415520B

TWI415520B - Fluorescent lamp device

Info

Publication number: TWI415520B
Application number: TW96131191A
Authority: TW
Inventors: Shigemi Hota
Original assignee: Shigemi Hota; Hirosawa Masaru; Fukuda Goro; Hayashida Hiroshi; Cheng Te Lung
Priority date: 2007-04-17
Filing date: 2007-08-23
Publication date: 2013-11-11
Also published as: TW200843558A

Abstract

This invention provides a fluorescent lamp device operable by turning on and off a power source switch so as to turn on only one lamp to save electric power. In a two-lamps parallel type fluorescent lamp device, there are provided with: a stabilizer (13) using a commercial power source (11) as a power source, two power supplying circuits (14A, 14B) connected in parallel with each other and connected in series with respect to output ends of the stabilizer, fluorescent lamps (16A, 16B) connected in a middle part of the two power supplying circuits, switching means (18) provided in one of the two power supplying circuits for turning on and off the one of the two power supplying circuits, and a control circuit (19) which operates in response to the on and off operation of the power source switch to control the switching means (18) when the power source switch is operated to turn-on within a predetermined time after the on-off operation of the power source switch, so as to cut off the power supplying circuit.

Description

螢光燈器具Fluorescent light fixture

本發明有關一種螢光燈器具，尤有關在具備反相器式穩定器的兩燈並聯式螢光燈器具中，必要時藉由電源開關的ON/OFF操作，僅使兩盞燈中的一盞燈點燈，從而能夠謀求省電的螢光燈器具。The present invention relates to a fluorescent lamp device, and more particularly to a two-lamp parallel fluorescent lamp device having an inverter type stabilizer, wherein only one of the two lamps is turned on by an ON/OFF operation of the power switch if necessary The fluorescent lamp can be used to save power by lighting the xenon lamp.

在辦公室、店鋪、工廠等地方，常常在頂棚上安裝複數個兩燈用螢光燈器具，用以照明整個室內。該兩燈用螢光燈器具有並聯式和串聯式，性能優異、價格低廉的串聯式係普及於照明設備，在屋外廣告等標識則多採用能夠容易控制螢光燈點滅的並聯式(專利文獻1、專利文獻2)。In offices, shops, factories, etc., a plurality of two-lamp fluorescent lamps are often installed on the ceiling to illuminate the entire room. The two-lamp fluorescent lamp has a parallel type and a series type, and the series type system with excellent performance and low price is popular in lighting equipment, and the parallel type which can easily control the flashing light is used in the logo of the outdoor advertisement (patent) Document 1, Patent Document 2).

最近，提倡節約能量，對於照明器具而言，在白天等無需用兩盞燈照射明亮的照明時，係關閉一盞燈從而謀求省電。但是，在串聯式兩燈用螢光燈器具，取下一盞燈，另一盞燈也會熄滅。Recently, energy conservation has been promoted, and for lighting fixtures, when two lamps are not required to illuminate bright illumination during the day, a lamp is turned off to save power. However, in the series-type two-lamp fluorescent lamp device, the next lamp is taken, and the other lamp is also turned off.

因此，取代通常的螢光燈，提出有利用對置的兩個連接端子之間連接有直流電阻成分較小之通電裝置的虛擬(dummy)管，使剩下的一盞燈點燈的兩燈串聯式螢光燈器具(專利文獻3、專利文獻4、專利文獻5)。Therefore, in place of the conventional fluorescent lamp, there is proposed a dummy tube in which an energizing means having a small DC resistance component is connected between two opposing connection terminals, and two lamps which are lit by the remaining one lamp are proposed. Tandem fluorescent lamp device (Patent Document 3, Patent Document 4, and Patent Document 5).

而且，還提出有計算設置在牆壁表面的電源開關之ON/OFF操作次數，並根據該操作次數，允許、停止螢光燈的雙金屬起動裝置之運作的螢光燈器具(專利文獻6)。Further, there has been proposed a fluorescent lamp device that calculates the number of ON/OFF operations of a power switch provided on a wall surface, and allows and stops the operation of the bimetal starting device of the fluorescent lamp based on the number of operations (Patent Document 6).

[專利文獻1]日本實開平06－58596號公報[專利文獻2]日本實開平06－58599號公報[專利文獻3]日本特開昭和53－45071號公報[專利文獻4]日本實開昭56－130296號公報[專利文獻5]日本特開2000－208238號公報[專利文獻6]日本特開2003－142279號公報[Patent Document 1] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. [Patent Document 5] Japanese Laid-Open Patent Publication No. 2000-208238 (Patent Document 6) Japanese Laid-Open Patent Publication No. 2003-142279

但是，在專利文獻3至5所記載之兩燈串聯式螢光燈器具中，由於使用虛擬管，因此在夜間等需要照射明亮的照明時，必須更換為通常的螢光燈，極其煩勞。However, in the two-lamp series fluorescent lamp apparatus described in Patent Documents 3 to 5, since the dummy tube is used, it is necessary to replace it with a normal fluorescent lamp when it is necessary to illuminate bright illumination at night, which is extremely troublesome.

另一方面，在兩燈並聯式螢光燈器具中，即使取下一盞螢光燈，剩下的螢光燈會繼續點燈，因此，透過開關的操作，只要能夠使一盞螢光燈熄滅、點燈，在白天就可以熄滅一盞燈以謀求省電，在夜間可以使兩盞燈點燈以確保明亮的照明。On the other hand, in the two-lamp parallel fluorescent lamp device, even if the next fluorescent lamp is taken, the remaining fluorescent lamps will continue to be lit. Therefore, as long as the fluorescent lamp can be extinguished by the operation of the switch Turn on the lights and turn off a light during the day to save power. At night, two lights can be turned on to ensure bright lighting.

本發明鑒於上述問題而作，其目的在於提供一種必要時，可以透過開關的操作，僅使一盞燈點燈以謀求省電的兩燈並聯式螢光燈器具。The present invention has been made in view of the above problems, and an object thereof is to provide a two-lamp parallel fluorescent lamp apparatus which can be powered by a switch and can be powered by a single lamp, if necessary.

本發明所涉及的螢光燈器具是一種兩燈並聯式螢光燈器具，其特徵為包括，以商用電源為電源的穩定器；針對上述穩定器的輸出端串聯連接，且互為並聯連接，並透過電源開關的ON操作而通電有來自穩定器的電流的兩個通電電路；與該兩個通電電路連接，並藉由通電而點燈的螢光燈；設置在上述兩個通電電路中的一側電路，用於切斷該一側通電電路的開關裝置；與上述電源開關的ON/OFF操作連動，在上述電源開關的ON/OFF操作後的預定時間內，上述開關操作成ON時，控制上述開關裝置以切斷上述通電電路的控制電路。The fluorescent lamp device of the present invention is a two-lamp parallel fluorescent lamp device, characterized in that it comprises a stabilizer powered by a commercial power source; the output terminals of the stabilizer are connected in series, and are connected in parallel with each other, And two energizing circuits for energizing the current from the stabilizer through the ON operation of the power switch; a fluorescent lamp connected to the two energizing circuits and lit by energization; and being disposed in the two energizing circuits a one-side circuit for switching off the switching device of the one-side energizing circuit; in conjunction with the ON/OFF operation of the power switch, when the switch operation is turned ON within a predetermined time after the ON/OFF operation of the power switch The above switching device is controlled to cut off the control circuit of the energizing circuit.

本發明的特徵之一，就是在兩燈並聯式螢光燈器具中，在一側螢光燈的通電電路上設置開關裝置，藉由對應於電源開關的ON/OFF操作的控制電路，開閉開關裝置。One of the features of the present invention is that in a two-lamp parallel fluorescent lamp apparatus, a switching device is provided on a power-on circuit of a side fluorescent lamp, and an opening and closing switch is provided by a control circuit corresponding to an ON/OFF operation of the power switch. Device.

由此，在白天等不需要明亮的照明時，可以熄滅一盞燈僅使剩下的另一盞燈點燈，從而可以實現省電，整體而言，可以削減消費電力實現節能。另外，在夜間等需要明亮的照明時，可以使兩盞燈點燈以達到必要的照明亮度。Therefore, when bright illumination is not required during the daytime, one lamp can be turned off and only the other lamp can be turned on, thereby saving power, and overall, it is possible to reduce power consumption and achieve energy saving. In addition, when bright illumination is required at night, the two lamps can be turned on to achieve the necessary illumination brightness.

若為了省電僅使一盞燈點燈，照明會變暗。因此，較為理想的是，在螢光燈的背後設置反射板，使照明度上升。If only one light is turned on in order to save power, the illumination will be dimmed. Therefore, it is preferable to provide a reflector on the back of the fluorescent lamp to increase the illumination.

使開關裝置與電源開關的ON/OFF連動時，可以藉由電源開閞的首次ON操作進行兩盞燈點燈，藉由下一個ON操作進行一盞燈點燈，但是，在進行兩盞燈點燈之後熄燈，接著電源開關操作為ON時，電源開關的操作就成為第2次ON操作，變成一盞燈點燈狀態，因此有可能被誤解為螢光燈受損，即所謂燈損壞。When the switching device is connected to the ON/OFF of the power switch, two lights can be turned on by the first ON operation of the power supply opening, and one light is turned on by the next ON operation, but two lights are being operated. When the light is turned off and then the power switch operation is ON, the operation of the power switch becomes the second ON operation, and becomes a light-on state. Therefore, it may be misunderstood that the fluorescent lamp is damaged, that is, the lamp is damaged.

因此，進行兩盞燈點燈之後熄燈，然後只有在一定時間內電源開關變成下一個ON時，才會將電源開開的操作判斷為第2次ON操作，由此，熄燈後經過一定時間之後，若電源開關操作為ON，則兩盞燈均點燈，而能夠解除上述誤解。Therefore, after the two lamps are turned on, the lights are turned off, and then the power-on switch is judged to be the second ON operation only when the power switch becomes the next ON within a certain period of time, thereby, after a certain period of time has elapsed after the lights are turned off. If the power switch operation is ON, both lights will be lit, and the above misunderstanding can be cancelled.

開關裝置以及控制電路，只要能夠進行上述點燈控制即可。即，在開關裝置中利用繼電器接點，控制電路在電源開關首次操作成ON時不使繼電器線圈通電，而使繼電器接點保持連接狀態，在上述電源開關變成OFF後到充放電電路的放電時間結束為止的期間內，電源開關再次操作成ON時，使繼電器線圈通電以切斷繼電器接點。The switching device and the control circuit are only required to be able to perform the above lighting control. That is, in the switching device, the relay contact is used, and the control circuit does not energize the relay coil when the power switch is first turned ON, but keeps the relay contact in a connected state, and discharges to the charging and discharging circuit after the power switch is turned OFF. When the power switch is turned ON again during the period until the end, the relay coil is energized to cut off the relay contact.

具體而言，控制電路包括，跟隨電源開關的ON/OFF而成為ON/OFF的開關裝置；開關裝置變成ON時產生時脈訊號的時脈訊號發生裝置；根據時脈訊號的輸入，反轉輸出訊號的D型正反器電路；施加有電路電壓而被充電，並在開關裝置變成OFF後，在其放電期間使D型正反器電路保持運作狀態的充放電電路；對應於D型正反器電路的輸出訊號，使繼電器線圈ON/OFF的開關電路。Specifically, the control circuit includes a switching device that is turned ON/OFF following the ON/OFF of the power switch; a clock signal generating device that generates a clock signal when the switching device is turned on; and an inverted output according to the input of the clock signal a D-type flip-flop circuit of a signal; a charge-discharge circuit that is charged with a circuit voltage and charged, and that maintains the D-type flip-flop circuit in an operational state after the switching device is turned OFF; corresponding to the D-type positive and negative The output signal of the circuit makes the relay coil ON/OFF the switching circuit.

穩定器可以使用軛鐵型變壓器，但是考慮到省電，較為理想的是，使用輸入以商用電源為電源的電源電路的直流電壓，且輸出高頻電壓的反相器式穩定器。The stabilizer can use a yoke type transformer, but in view of power saving, it is preferable to use an inverter type stabilizer that inputs a DC voltage of a power supply circuit that uses a commercial power source as a power source and outputs a high frequency voltage.

下面，根據圖式所示具體例詳細說明本發明。第1圖至第2圖表示本發明所涉及之螢光燈器具的最佳實施例。在圖中，電源電路10具備電源開關12，並且輸入商用電源11的交流電壓，輸出直流電壓。電源電路10的輸出電壓輸入到反相器式穩定器13，並輸出預定的高頻電壓。Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. Fig. 1 to Fig. 2 show a preferred embodiment of the fluorescent lamp apparatus according to the present invention. In the figure, the power supply circuit 10 is provided with a power switch 12, and inputs an AC voltage of the commercial power source 11 to output a DC voltage. The output voltage of the power supply circuit 10 is input to the inverter type stabilizer 13 and outputs a predetermined high frequency voltage.

在反相器式穩定器13的輸出端，連接有兩個通電電路14A、14B，該反相器式穩定器13和通電電路14A、14B分別為串聯連接，通電電路14A和14B為並聯連接。兩個通電電路14A、14B上連接有扼流圈(choke coil)15A、15B，以及螢光燈16A、16B。另外，第2圖表示該反相器式穩定器13的電路結構的一個例子。At the output end of the inverter stabilizer 13, two energizing circuits 14A, 14B are connected. The inverter stabilizer 13 and the energizing circuits 14A, 14B are connected in series, and the energizing circuits 14A and 14B are connected in parallel. Choke coils 15A and 15B and fluorescent lamps 16A and 16B are connected to the two energizing circuits 14A and 14B. In addition, FIG. 2 shows an example of the circuit configuration of the inverter type stabilizer 13.

一側通電電路14A上連接有常閉型(normal close)繼電器接點(開關裝置)18，並且藉由與電源開關12的ON/OFF連動的控制電路19，開閉(連接、切斷)該繼電器接點18。A normally-closed relay contact (switching device) 18 is connected to the one-side energizing circuit 14A, and the relay is opened (closed, disconnected) by a control circuit 19 that is interlocked with the ON/OFF of the power switch 12. Contact 18.

控制電路19安裝在螢光燈器具的內部，具有如第3圖所示的電路結構。The control circuit 19 is mounted inside the fluorescent lamp fixture and has a circuit configuration as shown in Fig. 3.

控制電路19，基本上可以由D型正反器(flip flop)電路(下面，將正反器電路簡稱為FF電路)構成。表1表示D型FF電路的運作真值表。The control circuit 19 can basically be constituted by a D-type flip flop circuit (hereinafter, the flip-flop circuit is simply referred to as an FF circuit). Table 1 shows the operational truth table of the D-type FF circuit.

即，控制電路19包括：跟隨電源開關12的ON/OFF而成為ON/OFF的開關SW；當開關SW為ON時發生時脈訊號的時脈訊號發生電路30；根據時脈訊號的輸入反轉輸出訊號的D型FF電路IC2；施加有電路電壓而被充電，開關SW變成OFF後，在其放電期間使D型FF電路IC2保持運作狀態的充放電電路31；以及對應於D型FF電路的輸出訊號使繼電器線圈成為ON/OFF的開關電路32。That is, the control circuit 19 includes a switch SW that is turned ON/OFF following the ON/OFF of the power switch 12, and a clock signal generating circuit 30 that generates a clock signal when the switch SW is ON; the input is inverted according to the input of the clock signal a D-type FF circuit IC2 that outputs a signal; a charge/discharge circuit 31 that is charged with a circuit voltage and is turned OFF, and the switch SW is turned OFF, and the D-type FF circuit IC2 is kept in operation during discharge; and a D-type FF circuit The output signal turns the relay coil into an ON/OFF switching circuit 32.

若電源開關第一次變成ON，開關(開關裝置)SW則變成ON，在電晶體Q1的基極上施加從齊納二極體D1和二極體D2、D3的連接點抽取的電壓。齊納二極體D1和二極體D2、D3的電壓比，係設定成電晶體Q1的基極電壓成為運作電壓±1.6V。而且，利用電容器C1使交流電壓從100V下降，以便在齊納二極體D1上施加5.6V以上的電壓。When the power switch is turned ON for the first time, the switch (switching device) SW is turned ON, and a voltage extracted from the connection point of the Zener diode D1 and the diodes D2 and D3 is applied to the base of the transistor Q1. The voltage ratio of the Zener diode D1 and the diodes D2 and D3 is set such that the base voltage of the transistor Q1 becomes an operating voltage of ±1.6V. Further, the AC voltage is lowered from 100 V by the capacitor C1 to apply a voltage of 5.6 V or more on the Zener diode D1.

首先，若電源開關12首次變為ON，開關SW則變成ON，電晶體Q1的基極上附加電壓，導致電晶體Q1成為ON，來自電晶體Q1的集電極的時脈訊號傳送到FF電路IC2的時脈端子CK。First, if the power switch 12 is turned ON for the first time, the switch SW is turned ON, and a voltage is applied to the base of the transistor Q1, causing the transistor Q1 to be turned ON, and the clock signal from the collector of the transistor Q1 is transmitted to the FF circuit IC2. Clock terminal CK.

此時，由於FF電路IC2的反轉端子Q為“H”，資料端子D為“H”，因此到時脈端子CK的訊號下降為止的期間，FF電路IC2的輸出端子Q為“L”並保持該狀態。At this time, since the inverting terminal Q of the FF circuit IC2 is "H" and the data terminal D is "H", the output terminal Q of the FF circuit IC2 is "L" until the signal of the clock terminal CK falls. Keep this state.

從電晶體Q1的集電極傳送到FF電路IC2的時脈端子CK上的時脈訊號，可透過改變取決於電阻R3、電容器C4以及電阻R4時間常數，而自由設定特性或時間。The clock signal transmitted from the collector of the transistor Q1 to the clock terminal CK of the FF circuit IC2 can be freely set with characteristics or time by changing the time constant of the resistor R3, the capacitor C4, and the resistor R4.

若FF電路IC2的輸出端子Q為“L”並保持該狀態，則電晶體Q2的基極電壓為0，電晶體Q2不運作，繼電器RY也不運作，繼電器接點18還是ON狀態，兩盞螢光燈16A、16B均點燈。If the output terminal Q of the FF circuit IC2 is "L" and remains in this state, then The base voltage of the transistor Q2 is 0, the transistor Q2 does not operate, the relay RY does not operate, the relay contact 18 is still in the ON state, and the two fluorescent lamps 16A, 16B are lit.

在D型FF電路IC2，資料輸入D的資料在時脈訊號下降時被讀入到FF電路IC2，並在下一次時脈訊號上升時輸出到輸出端子Q。FF電路IC2的設定(set)端子PR、重設(reset)端子CL，係藉由將各自的輸入訊號設為“H”，而能夠獨立於時脈訊號的輸入之外地進行FF電路IC2的設定/重設，因此重設端子CL連接在接地線GND。In the D-type FF circuit IC2, the data of the data input D is read into the FF circuit IC2 when the clock signal falls, and is output to the output terminal Q when the next clock signal rises. The set terminal PR and the reset terminal CL of the FF circuit IC2 can set the FF circuit IC2 independently of the input of the clock signal by setting the respective input signals to "H". / Reset, so the reset terminal CL is connected to the ground line GND.

而且，若開關SW變為ON，電容器C2、C3則被充電，開關SW變為OFF後，電容器C2、C3開始放電，FF電路IC2繼續保持運作狀態直至該放電達到預定電壓以下為止。放電時間由電容器C2、C3和電阻R1、R2而決定。When the switch SW is turned on, the capacitors C2 and C3 are charged, and after the switch SW is turned off, the capacitors C2 and C3 start to discharge, and the FF circuit IC2 continues to operate until the discharge reaches a predetermined voltage or lower. The discharge time is determined by capacitors C2, C3 and resistors R1, R2.

因此，在電容器C2、C3完全放電為止的期間，若電源開關再次變為ON，來自電晶體Q1的集電極的時脈訊號係被傳送到FF電路IC2的時脈端子CK，FF電路IC2的輸出端子Q變成“H”、反轉端子Q變成“L”並保持其狀態。Therefore, when the power switches are turned ON again while the capacitors C2 and C3 are completely discharged, the clock signal from the collector of the transistor Q1 is transmitted to the clock terminal CK of the FF circuit IC2, and the output of the FF circuit IC2. The terminal Q becomes "H", and the inverting terminal Q becomes "L" and maintains its state.

如此，電晶體Q2的基極電壓成為運作電壓，電晶體Q2係進行運作，繼電器RY被通電，繼電器接點18變成OFF，因此，螢光燈16A不點燈，只有螢光燈16B點燈。繼電器RY的電源使用從IC1供給過來的5V。Thus, the base voltage of the transistor Q2 becomes the operating voltage, the transistor Q2 operates, the relay RY is energized, and the relay contact 18 is turned OFF. Therefore, the fluorescent lamp 16A is not lit, and only the fluorescent lamp 16B is turned on. The power supply of the relay RY uses 5V supplied from IC1.

另一方面，若電源開關變為OFF，導致開關SW也變成OFF，電容器C2、C3放電直至預定電壓以下，D型FF電路IC2則被初始化，繼電器RY成為不運作狀態，因此，繼電器接點18返回到常閉狀態，兩盞螢光燈16A、16B返回到能夠點燈的狀態。On the other hand, if the power switch is turned off, the switch SW is also turned OFF, the capacitors C2 and C3 are discharged until the predetermined voltage or lower, the D-type FF circuit IC2 is initialized, and the relay RY is in an inoperative state, and therefore, the relay contact 18 Returning to the normally closed state, the two fluorescent lamps 16A, 16B return to the state in which they can be lit.

如上所述，藉由反複電源開關12的ON、OFF，D型FF電路IC2也成為正反器，從而能夠控制並保持繼電器RY，因此，可以控制兩盞燈點燈和一盞燈點燈之間的切換。As described above, by repeating the ON and OFF of the power switch 12, the D-type FF circuit IC2 also becomes a flip-flop, so that the relay RY can be controlled and held, so that it is possible to control two lamp lightings and one lamp lighting. Switch between.

10．．．電源電路10. . . Power circuit

11．．．商用電源11. . . Commercial power supply

12．．．電源開關12. . . switch

13．．．反相器式穩定器13. . . Inverter stabilizer

14A、14B．．．通電電路14A, 14B. . . Power circuit

16A、16B．．．螢光燈16A, 16B. . . Fluorescent light

18．．．繼電器接點(開關裝置)18. . . Relay contact (switching device)

19．．．控制電路19. . . Control circuit

30．．．時脈訊號發生電路30. . . Clock signal generation circuit

31．．．充放電電路31. . . Charge and discharge circuit

32．．．開關電路32. . . Switch circuit

IC2．．．D型正反器電路IC2. . . D-type flip-flop circuit

RY．．．繼電器RY. . . Relay

SW．．．開關(開關裝置)SW. . . Switch (switching device)

第1圖表示本發明所涉及之螢光燈器具的最佳實施例的電路結構之一個例子。Fig. 1 shows an example of a circuit configuration of a preferred embodiment of a fluorescent lamp apparatus according to the present invention.

第2圖表示上述實施例中的穩定器電路結構之一個例子。Fig. 2 shows an example of the structure of the stabilizer circuit in the above embodiment.

第3圖表示上述實施例中的控制電路之一個例子。Fig. 3 shows an example of the control circuit in the above embodiment.

10‧‧‧電源電路10‧‧‧Power circuit

11‧‧‧商用電源11‧‧‧Commercial power supply

12‧‧‧電源開關12‧‧‧Power switch

13‧‧‧反相器式穩定器13‧‧‧Inverter Stabilizer

14A、14B‧‧‧通電電路14A, 14B‧‧‧ power circuit

16A、16B‧‧‧螢光燈16A, 16B‧‧‧ fluorescent lights

18‧‧‧繼電器接點(開關裝置)18‧‧‧Relay contacts (switching devices)

19‧‧‧控制電路19‧‧‧Control circuit

Claims

一種兩燈並聯式螢光燈器具，其特徵為包括：穩定器，以商用電源為電源；兩個通電電路，針對上述穩定器的輸出端串聯連接，且互為並聯連接，並藉由電源開關的ON操作而通電有來自穩定器的電流；螢光燈，與該兩個通電電路連接，並藉由通電而點燈；開關裝置，由繼電器接點構成，設置在上述兩個通電電路中的一側電路，用於切斷該一側通電電路；及控制電路，包括：開關，跟隨電源開關的ON/OFF而成為ON/OFF；時脈訊號發生電路，上述開關變成ON時產生時脈訊號；D型正反器電路，根據上述時脈訊號的輸入，反轉輸出訊號；充放電電路，施加有電路電壓而被充電，上述開關變成OFF後，在其放電期間使上述D型正反器電路保持運作狀態；及開關電路，對應於上述D型正反器電路的輸出訊號，使繼電器線圈成為ON/OFF，上述控制電路在上述電源開關首次操作成ON時不使繼電器線圈通電，而使繼電器接點保持連接狀態，在上述電源開關變成OFF後到上述充放電電路的放電時間結束為止的期間內，上述電源開關再次操作成ON時，使繼電器線圈通電以切斷繼電器接點。 A two-lamp parallel fluorescent lamp appliance characterized by comprising: a stabilizer, which is powered by a commercial power source; two energizing circuits, which are connected in series for the output ends of the stabilizers, and are connected in parallel with each other, and are connected by a power switch The ON operation is energized with current from the stabilizer; the fluorescent lamp is connected to the two energizing circuits and is turned on by energization; the switching device is composed of relay contacts and is disposed in the two energizing circuits. a circuit for cutting off one side of the power supply circuit; and a control circuit comprising: a switch that is turned ON/OFF following the ON/OFF of the power switch; a clock signal generating circuit that generates a clock signal when the switch is turned ON The D-type flip-flop circuit inverts the output signal according to the input of the clock signal; the charge and discharge circuit is charged with the circuit voltage applied thereto, and after the switch is turned OFF, the D-type flip-flop is made during the discharge period; The circuit remains in operation; and the switching circuit corresponds to an output signal of the D-type flip-flop circuit to turn the relay coil ON/OFF, and the control circuit is operated for the first time in the power switch When the LED is turned ON, the relay coil is not energized, and the relay contact is kept in a connected state. When the power switch is turned off and the discharge time of the charge/discharge circuit is completed, the power switch is turned ON again, and the relay is turned on. The coil is energized to cut off the relay contacts.