TW566057B - Lighting device of discharging lamp - Google Patents

Abstract

The object of the present invention is to provide a lighting device of discharging lamp to light the lamp, wherein even if more than one discharge lamp in plural discharge lamp circuits is removed, the remained discharge lamps can be still lighted with about the same discharge lamp current as the quantity when all of the discharge lamps are installed. The lighting device of discharging lamp has an inverter circuit with a half-bridge circuit of a pair of switching devices 2, 3 to convert the DC current supplied by the DC power source 1 into high-frequency current; and loading circuits L100, L110 to light the discharge lamps 5, 10 by the high-frequency current from this inverter circuit. The discharge lamp loading circuits L100, L110 comprise the choke coils 5, 9; discharge lamps 6, 10; a serial connection circuit of coupling capacitors 8, 12; and capacitors 7, 10 connected to the discharge lamps 6, 10 in parallel, each having a pair of secondary coils 5a, 5b, 9a, 9b installed on the choke coils 5, 9 connected to the switching devices 2, 3 in parallel through their own resistors respectively.

Description

566057 五、發明說明（1) [發明所屬的技術領域] 本發明，係有關於藉由來自於自激式轉換器電路之高 頻率電力，來點亮複數放電燈之點燈裝置。 [習知技術] 第9圖，係習知之放電燈裝置之電路圖。圖中，i為從 商用電源獲得的直流電源，2、3為由構成轉換器電路之 M0SFET而成的切換元件，5為抗流線圈，6為放電燈，7為 被並聯連接至放電燈6之電容，8為_合電容，這些構成放 =燈負載電路L100。L110為和放電燈負載電路u〇〇相同的 構造’而被並聯連接至放電燈負載電路L⑽之放電燈負載吓 電路，並由抗流線圈9、放電燈10、電容η、耦合電容12 來構成。 、4為被連接至一對切換元件2、3之連接點和放電燈負 =電路L1 0 〇、L1 1 0之並聯電路之連接點間之變流器（以下 稱為CT)，其2次線圈4a、4b如以圖示的•符號之極性來交 互地0以(^?驅動切換元件2、3，而透過各個電阻13、14， 被連接至上述切換元件2、3之閘極（gate)、源極（source) 之間。（為了表示CT4之1次線圈和2次線圈之結合，而以虛 線在圖中表示。）然而，圖中省略了被並聯地内藏在切換f το件2、3之汲極（drain) ·源極（s〇urce)間之等效二極體 (d1〇de)。而圖中亦省略了為了啟動轉換器之啟動電路。 第1〇圖:表示從商用電源來獲得直流電源】之構造 例。如圖所不地，其構造為從商用電源丨a所輸出之交流電 566057 五、發明說明（2) 、、/δ '、、’以橋式二極體全波整流後，用平滑電容來平滑化，而 成為直流電源被輸出至負載電路。 、 此構造上，一旦直流電源1被投入，即藉由省略圖示 勺啟動電路’以高頻率來交互地驅動切換元件2、3之放雷 燈6、〗。’而達到點亮之效果。 電 [發明所欲解決的課題] 罢上彳疋 在習知的放電燈點燈裝置上，於放電燈61 〇 ct/，之際，放電燈負載電路L100、L110之合成電流’流至 _ 而在因放電燈6或放電燈1〇之壽命之故障等，而將任 1方之放電燈移除之情況下，流至CT4之電流減少，因此 小之^人線圈電壓亦減少，而切換元件2、3之|區動電壓減 ^ 藉此轉換态電路之振盪頻率變化，所以有剩下之被裝 °又在放電燈負載電路之放電燈電流亦變化了之問題。亦566057 5. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a lighting device for lighting a plurality of discharge lamps with high-frequency power from a self-excited converter circuit. [Conventional Technology] Fig. 9 is a circuit diagram of a conventional discharge lamp device. In the figure, i is a DC power source obtained from a commercial power source, 2 and 3 are switching elements made of MOSFETs constituting a converter circuit, 5 is a current-resistant coil, 6 is a discharge lamp, and 7 is connected to the discharge lamp 6 in parallel. Capacitance, 8 is a _combined capacitor, these constitute a lamp load circuit L100. L110 has the same structure as the discharge lamp load circuit u00 ′, and is connected in parallel to the discharge lamp load circuit L⑽. The discharge lamp load fright circuit is composed of a current-resistant coil 9, a discharge lamp 10, a capacitor η, and a coupling capacitor 12. . , 4 is a current transformer (hereinafter referred to as CT) connected between a connection point of a pair of switching elements 2, 3 and a discharge lamp negative = circuit L1 0 〇, L1 10 parallel circuit connection point The coils 4a and 4b alternately drive the switching elements 2 and 3 with the polarity of the symbol • as shown in the figure, and are connected to the gates of the switching elements 2 and 3 through the respective resistors 13 and 14. ), Source. (In order to show the combination of the primary coil and the secondary coil of CT4, it is indicated by a dashed line in the figure.) However, the switching element f το 2 is built in parallel in the figure. Drain of 3, 3 · Equivalent diode (d1〇de) between source (source). The starting circuit for starting the converter is also omitted in the figure. Figure 10: Shown from Commercial power source to obtain a DC power source] structure example. As shown in the figure, its structure is AC power output from a commercial power source 丨 a 566057 V. Description of the invention (2), / δ ',,' Bridge-type two-pole After body full-wave rectification, it is smoothed by a smoothing capacitor, and the DC power is output to the load circuit. On this structure, once DC The power source 1 is turned on, that is, by omitting the start-up circuit shown in the figure, to alternately drive the thunder lamp 6 of the switching elements 2 and 3 at a high frequency. The lighting effect is achieved. Electricity [to be solved by the invention Problem] In the conventional discharge lamp lighting device, when the discharge lamp 61 ct /, the combined current of the discharge lamp load circuits L100 and L110 flows to _ and the discharge current is caused by the discharge lamp 6 or discharge. If the discharge lamp of either party is removed, the current flowing to CT4 will be reduced, so the voltage of the small coil will also decrease, and the switching element 2 and 3 will move. The voltage is reduced by this, so that the oscillation frequency of the switching circuit changes, so there is a problem that the remaining load is also changed in the discharge lamp current in the discharge lamp load circuit.

Uii電燈内’如果一移除1個燈’則以和移除前之 點4條件來點燈之困難之問題。 而為了驅動切換元件2、3之專用之CT4是必要的，因 此有成本上升，小型化困難等之問題。 又因放電燈之燈絲（f i lament)之放電物 由’放電電流減少，或一旦放電之正負之週期J = 週期之放電電流減少，而產生放電電流之非對稱現象，則 相當於在放電電流減少之週期上，放電燈之等效阻抗變、 大，所以例如在放電燈負載電路L 1 0 0上，產生放電燈之燈 絲之放電物質之消耗之時，放電燈負載電路L丨⑽之電路之In the Uii electric lamp, "if one lamp is removed", the problem is that it is difficult to light the lamp under the condition of point 4 before the removal. In addition, a dedicated CT4 for driving the switching elements 2 and 3 is necessary, which causes problems such as increased cost and difficulty in miniaturization. And because the discharge of the filament of the discharge lamp (fi lament) is reduced by the 'discharge current, or once the positive and negative period of the discharge J = the discharge current of the cycle is reduced, and the asymmetric phenomenon of the discharge current is equivalent to the reduction of the discharge current In the period, the equivalent impedance of the discharge lamp becomes large, so when the discharge lamp load circuit L 100 is consumed by the discharge substance of the filament of the discharge lamp, the circuit of the discharge lamp load circuit L

566057 _案號 91109938__年 H 日 修正 五、發明說明（4) 電路之電流增大，而防止在因電流增加之電路元件上，產 生不匹配，同時地設置了在此現象繼續之時，停止轉換器 電路之振盪之保護電路之放電燈點燈裝置。 本發明之第4目的，在於提供一種設置了藉由在剛投 入直流電源1，而啟動轉換器電路之後，以事先決定的計 時期間來預熱後才點燈，而不弓丨起燈絲之放電物質之消耗 以及放電燈管壁變黑，並簡便而便宜的預熱電路之放電燈 點燈裝置。 [用以解決課題的手段] 、 有關於本發明之放電燈點燈裝置，在具備了直流電 源、由具有將從直流電源1所供給之直流，轉換為高頻率 電流之一對切換元件之半橋式電路而成的轉換器 (inverter)電路、以及藉由來自此轉換器電路之高頻率電 流，使放電燈點燈之複數放電燈負載電路之放電燈點燈裝 置上，其中上述放電燈負載電路，具備了抗流線圈、放電 燈？合電容之串聯電路、以及被並聯連接至上述放電燈 ，電谷，並具備各自一對被設置在上述各個放電燈負載電 抗流線圈，而透過各自之限流元件，被並聯連接至上 m:件之2次線圈；以來自上述2次線圈之輸出電 壓，來父互地驅動上述一對切換元件。 :具備從各放電燈和輕合電容之連接點，來連接至直 燈時，透過二極體，在振上；=各放電；之正常點 盈之各+週期上，使電流交互地566057 _Case No. 91109938__ Year H Amendment V. Description of the Invention (4) The current of the circuit is increased to prevent mismatches in the circuit components due to the increase in current. At the same time, it is set to stop when this phenomenon continues. Discharge lamp lighting device for the oscillating protection circuit of the converter circuit. A fourth object of the present invention is to provide a lamp which is provided with a pre-heating period of time determined by a predetermined timing period after the converter circuit is started immediately after the DC power source 1 is turned on, without discharging the filament Discharge lamp lighting device for pre-heating circuit of material consumption and discharge tube wall blackening, and simple and cheap. [Means to Solve the Problem] The discharge lamp lighting device according to the present invention is provided with a DC power source and has half of a pair of switching elements that converts the DC power supplied from the DC power source 1 into a high-frequency current. An inverter circuit made of a bridge circuit and a discharge lamp lighting device for a plurality of discharge lamp load circuits for discharging a discharge lamp by using a high frequency current from the converter circuit, wherein the discharge lamp is loaded Circuit, with anti-coil, discharge lamp? The series circuit of the capacitor and the parallel connection to the above-mentioned discharge lamp and valley are provided with a respective pair of reactance current coils arranged on the load of each of the above-mentioned discharge lamps, and are connected in parallel to the upper m through the respective current-limiting elements. The secondary coil; the output voltage from the secondary coil is used to drive the pair of switching elements mutually. : Equipped with the connection points from each discharge lamp and light-on capacitor to connect to a straight lamp, through the diode, on the vibration; = each discharge; the normal point of the surplus + each cycle, so that the current alternately

566057 五、發明說明（5) 流至電源，來決定上述各耦合電容之電容值。 決定^复數放電燈負載電路之共振頻率，大致為相同地來 在各放電燈之正常點燈時，使驅動轉換器電路之 :::複數抗流線圈之2次線圈之電壓，大致為相同地來' 之2 Λ具：將各 Λ 極體，來作接線或（wired π)所 阻作i @ W · Η ^源電壓，而將此電源電壓透過電 =妾0Γ)後之電壓’當作控制上述轉換器電 之刀換70件之0Ν時間之控制信號之預熱計時器。 綠乂具備了在將驅動轉換器電路之切換元件之複數抗流 線圈之2次線圈，透過各自的二極體，來作接線或(wlre: 〇〇所得到的電壓，在比事先決定的值大的情況下，來停 止上述轉換為電路之切換元件之振盪之保護電路。 [發明的貫施例] 實施例1 第1圖’係表示有關本發明實施例1之放電燈點燈裝置 之電路圖。 圖中’ 1為從商用電源獲得的直流電源，2、3為由構 成轉換Is電路之M0SFET而成的切換元件，5為抗流線圈，6 為放電燈’7為被並聯連接至放電燈6之電容，8為耦合電 容’這些構成放電燈負載電路]^ 〇〇。566057 5. Description of the invention (5) Flow to the power supply to determine the capacitance of each of the above coupling capacitors. Determine the resonance frequency of the load circuit of the complex discharge lamp, which is approximately the same. When the discharge lamps are normally lit, the voltage of the secondary coil of the drive converter circuit ::: complex current-resistant coil is approximately the same. Here's 2 Λ: Use each Λ pole as a wiring or (wired π) to block i @ W · Η ^ source voltage, and use the voltage after this power supply voltage passes through electricity = 当作 0Γ) as A warm-up timer that controls the above-mentioned converter's electric knife for a control signal of ON time of 70 pieces. The green coil is provided with a secondary coil that drives a plurality of anti-current coils of the switching element of the converter circuit, and the wiring is obtained through the respective diodes, or the voltage obtained by (wlre: 〇〇 is lower than a predetermined value) In most cases, the protection circuit for stopping the oscillation of the above-mentioned switching element of the circuit is changed. [Inventive Embodiments] Embodiment 1 FIG. 1 is a circuit diagram showing a discharge lamp lighting device according to Embodiment 1 of the present invention In the figure, '1 is a DC power source obtained from a commercial power source, 2, 3 are switching elements made of M0SFETs that constitute a conversion Is circuit, 5 is a current-resistant coil, 6 is a discharge lamp, and 7 is a discharge lamp connected in parallel. 6 of the capacitor, 8 is the coupling capacitor 'these constitute the discharge lamp load circuit] ^ 〇〇.

566057 五、發明說明（6) L110為和放電燈負載電路⑽ ， 聯連接至放電燈負恭雷政τ , 再w 且為破並 貝戟電路L100之放電燈負載電路，而由枋 流線圈9、放電燈1 Q 雷交 *人十A 1 〇 .^ ' 電合11、耦合電容12來構成。 、且負载電路L10〇之抗流線圈5上，設置了一對2 次線f5:;5:、：而在放電燈負載電路L1 1〇之抗流線圈9丨 上°又—一對2次線圈9a、9b，2次線圈5a、5b、9a、9b 如以圖不的·符號之極性來交互地〇n/〇ff驅動切換元件 2 3 透過電阻1 3、1 5及電阻1 4、1 6，被連接至閘極、 源極之門（為了表示抗流線圈5、9之各個1次線圈和各個 2次線圈5a、5b、9a、9b之結合，以破折線及虛線在圖中 表不。）然而，省略了被並聯地内藏在切換元件23之汲 ，•源極間之等效二極體。而圖中亦省略了為了啟動轉換 器之啟動電路。在此，放電燈6和放電燈1 0以相同規格輸 出之$况下’選擇相等的各放電燈負載電路L1〇〇、Ln〇之 電路常數。而在放電燈6和放電燈丨〇以不同規格輸出之情 況下’设定成各放電燈負載電路之點燈時之共振頻率大致 相同’而點燈時之各抗流線圈5、9之2次線圈5a、5b、 9a、9b之各自電壓大致相等。 以下’藉由第1圖，來說明本發明實施例1之放電燈點 燈裝置之動作。圖中，一旦直流電源1被投入、即藉由省 略圖示的啟動電路，以高頻率來交互地驅動切換元件2、3 之放電燈6、1 〇，以達到點亮之效果。 在此’即使因放電燈之壽命故障等的理由，而拔掉任 何一邊之放電燈，切換元件2、3即以抗流線圈5之2次線圈566057 V. Description of the invention (6) L110 is the discharge lamp load circuit ⑽, which is connected to the discharge lamp negative voltage τ, and then w is the discharge lamp load circuit that breaks the parallel circuit L100, and the flow coil 9 1. Discharge lamp 1 Q Lei Jiao * person ten A 1 〇. ^ 'Coupling 11, coupling capacitor 12. And, a pair of secondary lines f5 are provided on the anti-current coil 5 of the load circuit L10〇: and 5 :, and on the anti-current coil 9 of the discharge lamp load circuit L1 10 °-a pair of 2 times The coils 9a, 9b, and the secondary coils 5a, 5b, 9a, 9b alternately with the polarities of the symbols shown in the figure. The n / off drives the switching element 2 3 through the resistance 1 3, 1 5 and the resistance 1 4, 1 6. Gates connected to the gate and source (in order to show the combination of each primary coil and each secondary coil 5a, 5b, 9a, 9b of the current-resistant coils 5, 9) No.) However, the equivalent diodes, which are built in the switching element 23 in parallel, are omitted. The starting circuit for starting the converter is also omitted in the figure. Here, when the discharge lamp 6 and the discharge lamp 10 are output with the same specifications, the circuit constants of the respective discharge lamp load circuits L100 and Ln0 are selected to be equal. In the case where the discharge lamp 6 and the discharge lamp are output with different specifications, 'the resonance frequency at the time of lighting of the load circuit of each discharge lamp is set to be approximately the same', and each of the anti-current coils 5 and 9 at the time of lighting is set. The voltages of the secondary coils 5a, 5b, 9a, and 9b are substantially equal. Hereinafter, the operation of the discharge lamp lighting device according to the first embodiment of the present invention will be described with reference to Fig. 1. In the figure, once the DC power supply 1 is turned on, the discharge lamps 6, 10 of the switching elements 2, 3 are alternately driven at a high frequency by a start circuit that is not shown in the figure, so as to achieve the effect of lighting. Here, even if the discharge lamp on either side is unplugged due to the failure of the life of the discharge lamp, etc., the switching elements 2 and 3 are the secondary coils of the anti-current coil 5

2148-4835-PF(N),ahddub ptd 第10頁 566057 五、發明說明（7) 5 a、5 b以及抗 並聯驅動，所 線圈之驅動電 個放電燈正常 共振頻率大致 圈5a 、 5b 、 9a 邊保持和全部 流 而一邊保 如以上地 使剩下之放電 燈内，即使移 燈。 又不須要 宜且小型。 流線圈9之2次線圈9a、9b上產生之電壓，來 以即使來自抗流線圈5、9之任何一方之抗流 壓消失，放電燈6、1 0之中任一個存在時之1 點亮的話，則各放電燈負載電路之點燈時之 相同，而點燈時之各抗流線圈5、9之2次線 、9b之電壓各自設定成大致相等，故能夠一 之放電燈6、1 〇正常時大致相同之放電燈電 持放電。 ，複數放電燈内，即使移去1個燈，亦能夠 燈之電流不變動，而為了省電力，複數放電 去1個燈’亦能夠使剩下之放電燈正常點 為了驅動切換元件之專用之口， 所以能夠便 實施例2 第2亂係表示本發明之實施例2 路圖，第3圖係為了說明通常時之 现電燈點燈裝置之電 圖係為了說明異常時之電路“動作之波形圖，第4 ，中，和實施例丨之第心；2圖。 同付號，而省略其說明。第2圖中5目t部分，附加了相 L1 00上，30為陽極被連接至放 ；故電燈負載電路 陽極被連接至直2148-4835-PF (N), ahddub ptd Page 10 566057 V. Description of the invention (7) 5 a, 5 b and anti-parallel driving, the normal resonance frequency of the electric drive lamp of the coil is approximately 5a, 5b, 9a Keep the whole discharge while keeping the discharge lamp inside as above, even if you move the lamp. It is not necessary to be small and compact. The voltage generated on the secondary coils 9a, 9b of the current coil 9 is turned on so that even if the anti-current voltage from any of the anti-current coils 5, 9 disappears, one of the discharge lamps 6, 10 exists. If it is, the load circuit of each discharge lamp is the same when it is turned on, and the voltages of the current-resistance coils 5 and 9 secondary lines and 9b are set to be substantially equal when they are turned on, so the discharge lamps 6 and 1 can be used. 〇 The discharge lamps are held at about the same time under normal discharge. In the multiple discharge lamp, even if one lamp is removed, the current of the lamp does not change, and to save power, one lamp is discharged in multiple discharges, so that the remaining discharge lamps can be normally used for driving the switching element. Therefore, the second chaotic system of Embodiment 2 can be used to show the second embodiment of the present invention. The third diagram is to explain the electric diagram of the current electric lamp lighting device at normal time. Figure 4, Figure 4, and the heart of Example 丨; Figure 2. Same reference numerals, and the description is omitted. Part 5 of Figure 2 is t, with phase L100 added, and 30 is connected to the anode. ; So the anode of the lamp load circuit is connected to the straight

2148-4835-PF(N),ahddub ptd 點，陰極被連接至直流電源丨之正且b和耦合電容8之連接 被連接至放電燈6和耦合電容8之連接^纟二極體，31為陰極 566057 五、發明說明（8) 流電^之負極之二極體。 放電^1 0 3 放電燈負載電路1^1 1 0上，32為陽極被連接至 1之正極之—耦合電谷1 2之連接點，陰極被連接至直流電源 容1 2之i表姐〜極體’ 3 3為陰極被連接至放電燈1 0和耦合電 體。 妾點，陽極被連接至直流電源1之負極之二極！ LUO之藉由第3圖，來說明放電燈負載電路LI 00、 固耦合電容C8、C12之靜電電容值之選定。 點燈時之、、j圖係放電燈負載電路L 1 00之耦合電容C8之正常 容Cl2 / ^形，第3(b)圖係放電燈負載電路L110之耦合電 正吊點燈時之波形。 之斜綠=3)圖之波形，超過直流電源1之電壓值几部分 連接於Ϊ =，表示放電燈負載電路L100之放電燈6和並聯 陶)至首Λ容7之合成電流’透過二極體30，旁路w 部分之祖源1之正極，在同圖之波形，電壓vo以下的 合成雷ί部分，表示放電燈6和並聯連接於此的電容7之 1為鉍二，透過二極體31，旁路至直流電源1之負極，而 八為輕合電容8之波形不存在之部分。 向 同樣地，在第3(b)圖之波形，超過電壓vd部分之斜 :刀，表示放電燈負載電路L110之放電燈1 於 此的電容u之合成電流，透過二極體32，旁路至』= 1 八之正極’在同圖之波形，電壓V0以下的部分之斜線部電源 刀，表示放電燈1 〇和並聯連接於此的電容丨丨之人 透過二極體33 ’旁路至直流電源丨之負極，而其電2148-4835-PF (N), ahddub ptd point, the cathode is connected to the DC power source and the connection between b and the coupling capacitor 8 is connected to the connection between the discharge lamp 6 and the coupling capacitor 8 纟 纟 diode, 31 is Cathode 566057 V. Description of the invention (8) Galvanic cathode of the negative electrode. Discharge ^ 1 0 3 On the discharge lamp load circuit 1 ^ 1 1 0, 32 is the connection point where the anode is connected to the positive pole of 1-coupling valley 1 2 and the cathode is connected to the cousin i of the DC power supply capacity 1 2 ~ pole The body '3 3 is a cathode connected to the discharge lamp 10 and a coupling electric body. For example, the anode is connected to the two poles of the negative pole of DC power supply 1! The selection of the electrostatic capacitance values of the discharge lamp load circuit LI 00, the solid-coupling capacitors C8, and C12 is illustrated in FIG. 3 by the LUO. When lighting, the figure j shows the normal capacity Cl2 / ^ of the coupling capacitor C8 of the discharge lamp load circuit L 1 00, and the figure 3 (b) shows the waveform when the coupling electric of the discharge lamp load circuit L110 is hanging. . (Oblique green = 3) The waveform of the figure, which exceeds the voltage value of the DC power supply 1 is connected to Ϊ =, which indicates that the discharge current of the discharge lamp load circuit L100 (discharge lamp 6 and parallel ceramic) to the first Λ capacity 7 passes through the two poles The body 30, the anode of the ancestral source 1 of the bypass w part, is shown in the waveform of the same figure, and the synthesized thunder part below the voltage vo indicates that the discharge lamp 6 and the capacitor 7 connected in parallel to it are bismuth two and pass through the two poles. The body 31 is bypassed to the negative pole of the DC power supply 1, and the eighth portion is a part where the waveform of the light-on capacitor 8 does not exist. In the same way, in the waveform of FIG. 3 (b), the slope of the voltage vd exceeds the slope: knife, which represents the combined current of the capacitor u of the discharge lamp 1 of the discharge lamp load circuit L110, which passes through the diode 32 and bypasses. To "= 1 of the eight positive poles" in the waveform of the same figure, the slashed part of the voltage below the voltage V0, indicates the discharge lamp 1 〇 and the capacitor connected in parallel 丨 丨 the person through the diode 33 ′ bypass to The negative pole of the DC power source 丨

D〇〇Oy/ 五、發明說明（9) 在此省略了二極體3 Ο 容1 2之波形不存. 〇! 〇0 〇〇 子在之部分。然而 、 之噸方向電壓下降。 放電燈負恭 之靜電電容值之i，L100、、LU〇之各個耦合電容⑶、C12 形，來各自選定、疋，成為在第3(&)、（b)圖所示之波 接於此的電容7即八，藉由流至放電燈6、1〇和並聯連 之電壓放電一邊，、之β成電流，獲得在耦合電容C8、Π2 VD，$ a e 一、 半周期上，超過直流電源1之電壓值 ，vn二邊半周期上，不超過直流電源1之負極之電 壓VO之大小之振幅，來選定之。 <1 以下，藉由第2圖、第4圖，來說明表示本發明之實施 例2之放電燈點燈裝置之動作。 第2圖中，一旦直流電源被投入，即藉由省略圖示的 啟動電路，以高頻率來交互地驅動切換元件2、3之放電燈 6、1 0，以達到點燈之效果。 在此，放電燈負載電路L11〇之放電燈1〇之燈絲内，一 旦被連接至抗流線圈9側之放電物資，因壽命等的理由而 被消耗，而被和粞合電容1 2連接側之放電物資殘存著，放 電物貧在被消耗側之半周期上之放電電流減少。因此，耦 合電容12之電壓’如第4(b)圖上所示地，振幅減少。 耦合電容12之兩端電壓，因為藉由流過放電燈1〇和電 容1 1之合成電流而振盪，所以這表示著放電之丨周期上之 合成電流減少。而和燈絲之放電物資消耗之情況和正常之 情況相比，因為放電燈電壓增加，電容丨丨之電流不減少， 因此放電燈電流減少。因為放電燈負载電路以⑽和放電燈 566057 a 修正 五、發明說明（10) 負載電路Ll 1 0之點燈時之丑护 以即使成為如放電燈負；電=)车之被^ = 器電路之振盈頻率數不變。亦即、 一放電燈1 0之燈絲之放雷必次、々> 周期上之雷”… “耗，在放電燈10之1個 數不變，而因為放電之重複次數之振蘯頻率 壽命末期，亦能夠防止在因使放電燈成為 不匹配。 隹α電机增加之電路元件上’產生 鮮夕，說明了和抗流線圈9連接侧之放電燈之燈 = ; = =之情況，但是㈣合電容12連接侧之放 透過-極體33 ’成為流經過耦合電容12之電流，只 ，、一極體33，被旁路，在（（b)上， 線對稱之波形），而放電燈丨〇之雷法法,^ 2為 路元件上，產生不匹配。 減少’能夠防止在電 路，ί二ΐ: ’根據本實施例’即使在將複數放電燈電 器電路丄ί Ϊ至由切換元件2、切換元件3而成的同-轉換 期故p，月'口下丄而1個放電燈負載電路之放電燈壽命末 使已= =常放電燈之放電不受影響，亦能夠只選擇 期之放電燈之電流減少，而能夠防止在電 給凡件上，產生不匹配。 實施例3 =5圖，係表示本發明之實施例3之放電燈點燈裝置之 圖。本實施例，在實施例2上之放電燈負載電路為2個 第14頁 2148-4835-PFl(N).ptc 566057 案號91109938_年 及 日 修,τ _ 五、發明說明（11) 之情況，但是本實施例，為放電燈負載電路為3個之情 況。 圖中，和實施例2之第2圖相同或相當部分，附加了同 一符號，而省略其說明。 圖中，L120為由和L100之放電燈負載電路相同的構造 而成的第3放電燈負載電路，1 7為抗流線圈，1 8為放電 燈，19為和放電燈並聯連接之電容，20為耦合電容，34、 35為二極體。抗流線圈17之1對2次線圈17a、17b，透過電 阻21、22，以交互地训/〇吓切換元件2、3之極性（圖示· 符號），被連接至閘極。 如此地’因為是以實施例2之第2圖所示的放電燈負載 電路L120，和放電燈負載電路L1〇〇、Ln〇並聯連接之構 造’所以動作和實施例2同樣，在放電燈1 〇之燈絲之放電 物資消耗之時，因為放電燈負載電路[1〇〇、L11()、L12〇之 點燈時之共振頻率數大致選定成一樣，所以造成振盪頻率 數不變化，放電燈10之電流減少，而即使放電燈成為壽命 ，期，亦，夠=止在電路元件上，因電流增加產生不匹配 等，以獲知和貫施例2相同之效果。然而，放電燈負載電 路之並聯連接數^ Λ 之上限’並不局限於3，而亦可為3以上。 實施例4 笛R岡 ，主 一 回 系衣示有關本發明之實施例4之放電燈點燈裝 路圖9’第7圖係電路各部位之波形圖。本實施例， ’、Λ施例上追加預熱計時（T i me )電路之實施例。D〇〇Oy / 5. Description of the invention (9) The waveform of the diode 3 〇 capacity 12 is omitted here. 〇! 〇0 〇〇 However, the voltage in the ton direction decreases. The discharge capacitor negative capacitance value i, L100, and LU〇 each coupling capacitor ⑶, C12 shape, respectively selected, 疋, become the waves shown in Figure 3 (&), (b) here Capacitance 7 is eight. By flowing to the discharge lamp 6, 10 and discharging the voltage in parallel, β is a current, and the coupling capacitors C8, Π 2 VD, $ ae, one half cycle, exceed the DC power supply. The voltage value of 1 is selected on the two half cycles of vn and does not exceed the amplitude of the voltage VO of the negative electrode of the DC power supply 1. < 1 Hereinafter, the operation of the discharge lamp lighting device according to the second embodiment of the present invention will be described with reference to Figs. 2 and 4. In FIG. 2, once the DC power is turned on, the discharge lamps 6, 10 of the switching elements 2, 3 are alternately driven at a high frequency by a start circuit (not shown) to achieve the effect of lighting. Here, once the discharge filament of the discharge lamp load circuit 10 of the discharge lamp load circuit L11 is connected to the discharge material on the side of the anti-current coil 9, it is consumed for reasons such as life, and is connected to the coupling capacitor 12 side. The discharge materials remain, and the discharge current of the discharge material is reduced in the half cycle of the consumed side. Therefore, the voltage 'of the coupling capacitor 12 decreases as shown in Fig. 4 (b). The voltage across the coupling capacitor 12 oscillates by the combined current flowing through the discharge lamp 10 and the capacitor 11, so this indicates that the combined current on the discharge cycle is reduced. Compared with the discharge of filament discharge materials and the normal situation, because the discharge lamp voltage increases, the current in the capacitor does not decrease, so the discharge lamp current decreases. Because the discharge lamp load circuit is ⑽ and discharge lamp 566057 a. Amendment V. Description of the invention (10) The load circuit Ll 10 is turned on to hide the ugliness of the load circuit even if it becomes negative as a discharge lamp; The frequency of vibration surplus does not change. That is, the lightning discharge of the filament of a discharge lamp 10 must be repeated, 々 > the period of lightning…… "consumption, the number of discharge lamps 10 does not change, and the vibration frequency life due to the repeated number of discharges In the final stage, it is possible to prevent the discharge lamp from becoming mismatched.产生 The circuit element added to the α motor 'produces fresh evening, explaining the case where the lamp of the discharge lamp connected to the anti-coil coil 9 =; = =, but the coupling side of the capacitor 12 connected to the transmission-pole body 33' The current flowing through the coupling capacitor 12, only the pole body 33, is bypassed on ((b), a line-symmetric waveform), and the lightning method of the discharge lamp, ^ 2 is the circuit element , Resulting in a mismatch. Reduce the number of 'can prevent in the circuit': 'According to this embodiment', even when the plurality of discharge lamp electrical circuits are changed to the same-to-conversion period formed by the switching element 2 and the switching element 3, p, month ' At the end of the life of the discharge lamp of a discharge lamp load circuit, the discharge of the normal discharge lamp is not affected, and the current of the discharge lamp can be reduced only in the selection period, which can prevent the generation of electricity on all parts. Mismatch. Embodiment 3 = 5 is a diagram showing a discharge lamp lighting device according to Embodiment 3 of the present invention. In this embodiment, the discharge lamp load circuit in Embodiment 2 is two. Page 14 2148-4835-PFl (N) .ptc 566057 Case No. 91109938_year and day repair, τ _ V. Description of the invention (11) Case, but in this embodiment, there are three discharge lamp load circuits. In the figure, the same or corresponding parts as those in the second figure of the second embodiment are denoted by the same reference numerals, and descriptions thereof are omitted. In the figure, L120 is the third discharge lamp load circuit with the same structure as the discharge lamp load circuit of L100, 17 is a current-resistant coil, 18 is a discharge lamp, 19 is a capacitor connected in parallel with the discharge lamp, 20 Are coupling capacitors, 34 and 35 are diodes. The one-to-two secondary coils 17a and 17b of the current-resistant coil 17 pass through the resistors 21 and 22 to alternately train the polarity of the switching elements 2 and 3 (illustration and symbol), and are connected to the gate. In this way, 'because the discharge lamp load circuit L120 shown in FIG. 2 of the second embodiment is connected in parallel with the discharge lamp load circuits L100 and Ln0', the operation is the same as that of the second embodiment. When the discharge material of the filament is consumed, the resonance frequency of the discharge lamp load circuit [100, L11 (), and L12O is approximately the same when it is turned on, so the oscillation frequency does not change. The discharge lamp 10 The current is reduced, and even if the discharge lamp has a life and a period, it is enough to stop on the circuit element, which causes mismatch due to the increase in current, etc., to obtain the same effect as in Example 2. However, the upper limit of the parallel connection number ^ Λ of the discharge lamp load circuit is not limited to 3, but may be 3 or more. Embodiment 4 Flute R Gang, the first time, the clothes show the discharge lamp lighting circuit according to Embodiment 4 of the present invention. Fig. 9 'and Fig. 7 are waveform diagrams of various parts of the circuit. In this embodiment, an embodiment in which a preheating timer (T i me) circuit is added to the embodiment ′ and Λ.

566057 五、發明說明（12) 第6圖中，和實施例2之第2圖相同或相當部分，附加 了同一符號，而省略其說明。1〇〇為設定放電燈6、1〇之燈 絲之預熱期間之預熱計時器電路。 且 在預熱計時電路100，50、51為在各個抗流線圈5、9 次線圈5b、9b上，被連接至陽極之二極體，其陰極淼 2接至一併被連接的電容52之一端。電容52之另一端 、接至直流電源1之負極。電阻53、電容55之串聯電 被ίΪί電容52。從電阻53和電容54之連接點，透過齊納 一極體（Zener di0de)55之陰極、齊納二 被連接至NPN電晶體56之基極。 柽體55之％極， 電晶體56之射極，連接至直流電 二透ΓΓ59、6°，各自連接至二^ 極被連接至電晶體56之集極。H56之射極，陰 才體57。61係基極被連接至電晶體56之集極 - 至電晶體56之射極之NPN電晶體，唭集極被、:連接 極體63之陽極，而透過齊納二極體63之 —背納二 陰極、與二極體62之陽極，被連接:姑、一極體62之 極。 被運接至原切換元件3之閘 以下，藉由第6圖、第7圖，來說明 例4之放電燈點燈裝置之動作。第7(ai)^ 月之實施 示預熱計時期間和點燈期間2M〇SFE )圖，各自表 同圖各自表示預熱計時期線圈電壓， 晶體5 6之VCE電壓，同圖（cl )、（c :二:燈期間之電 各自表示預熱計時期 第16頁 2148-4835-PF(N),ahddub.ptd 566057 五、發明說明（13) 〜-- 間和點燈期間之雷具_ f； 1夕V $ 冤體61 1電壓，同圖（dl)、（d2)各 …δ k期間和點燈期間之M0SFET3之閘極•源極 間電壓。 从私Ϊ 6圖中，一旦直流電源1被投入、即藉由省略圖示的 士兩— 馮手木又互地驅動切換元件2、3。此時， 泣^奋52之兩立而上，獲得各自透過二極體5〇、51，而將抗 圈5、9之各個2次線圈5b、9b之電壓作峰值（peak)充 電後之電壓。此電壓透過電阻53，被充電至電容54，在此 被充電之電壓達到齊納二極體5 5之齊納電壓和電晶體5 6之 基•射極間順向電壓下降之和為止前，電晶體56， OFF ° 此時，抗流線圈5、9之2次線圈5b、9b，在負的半周 期上，透過電阻59、60，電晶體61之基極，被充電成負極 性。此情況之充電電壓值，為二極體5 γ之順向下降電壓， 規定為0· 6V。亦即、2次線圈之負的半周期上，電晶體61 成為OFF。 接著’抗流線圈5、9之2次線圈5 b、9 b之電壓反向， 一旦變成正的半周期，電容58即透過電阻59、6〇，而以和 負的半周期相反的極性來充電。在此，適當地選定電阻 59、60、電容58之值，如第7(cl)圖上所示地，使在2次線 圈電壓達到正的峰值為止前之時間tl上，電容58之電壓甚 至比電晶體61之基極臨界值電塵還大。如果電容58之電壓 達到電晶體61之基極臨界值電靨，則電晶體61成為〇N，而 因為透過二極體6 2、齊納二極體6 3，將切換元件3之閘極566057 V. Description of the invention (12) Figure 6 is the same as or equivalent to Figure 2 of Embodiment 2, and the same reference numerals are attached, and the description is omitted. 100 is a preheating timer circuit for setting the warm-up period of the filaments of the discharge lamps 6, 10. And in the preheating timing circuits 100, 50, and 51 are diodes connected to the anode on each of the current-resistant coils 5, 9 and 5b, 9b, and the cathode 2 is connected to the capacitor 52 connected together. One end. The other end of the capacitor 52 is connected to the negative pole of the DC power supply 1. The series connection of the resistor 53 and the capacitor 55 is called the capacitor 52. From the connection point between the resistor 53 and the capacitor 54, the Zener diode 55 is connected to the base of the NPN transistor 56 through the cathode of the Zener diode 55. The 55% pole of the carcass and the emitter of the transistor 56 are connected to the direct current ΓΓ59, 6 °, each of which is connected to the diode and is connected to the collector of the transistor 56. The emitter of H56, female body 57. 61 series base is connected to the collector of transistor 56-NPN transistor to the emitter of transistor 56, the collector is connected to the anode of electrode body 63, and Through the Zener diode 63-the back of the second cathode, and the anode of the diode 62 are connected: the first pole of the 62 pole. The operation of the discharge lamp lighting device of Example 4 will be described below with reference to Figs. 6 and 7 after being transported to the gate of the original switching element 3. The implementation of the 7th (ai) ^ month shows the 2M0SFE) diagrams during the warm-up timing and lighting period, each of which shows the same coil voltage during the warm-up period, the VCE voltage of the crystal 56, the same as the graph (cl), (C: Two: Electricity during the lamp period respectively indicates the period of the preheater. Page 16 2148-4835-PF (N), ahddub.ptd 566057 V. Description of the invention (13) ~-Lightning equipment during the period of lighting _ f; 1 night V $ 体 body 61 1 voltage, the same as (dl), (d2) in the figure δ k period and lighting period of M0SFET3 gate-source voltage. From the private 6 figure, once DC The power supply 1 is turned on, that is, by the taxi (not shown), Feng Shoumu drives the switching elements 2 and 3 in turn. At this time, the two of the 52 are upright, and each of them passes through the diode 50, 51, and the voltages of the secondary coils 5b and 9b of the reactance coils 5 and 9 are peaked. This voltage is charged to the capacitor 54 through the resistor 53, and the voltage charged here reaches Zener Before the sum of the Zener voltage of the diode 5 5 and the base of the transistor 5 6 • The forward voltage drop between the emitters, the transistor 56, OFF ° At this time, the anti-winding coil 5 and the secondary coil 5 of 9 b, 9b, on the negative half cycle, the resistance 59, 60 and the base of the transistor 61 are charged to a negative polarity. The charging voltage in this case is the forward voltage of the 5 γ of the diode. It is 0 · 6V. That is, the transistor 61 is turned off during the negative half cycle of the secondary coil. Then the voltage of the secondary coil 5 and 9 and the secondary coil 5 b and 9 b are reversed, and once they become positive In the half cycle, the capacitor 58 is charged through the resistors 59 and 60, and is charged with the opposite polarity to the negative half cycle. Here, the values of the resistors 59, 60 and the capacitor 58 are appropriately selected, as shown in Figure 7 (cl). As shown, at the time t1 before the secondary coil voltage reaches a positive peak value, the voltage of the capacitor 58 is even greater than the base threshold electric dust of the transistor 61. If the voltage of the capacitor 58 reaches the value of the transistor 61 The base critical value is 靥, and the transistor 61 becomes 0N. Because the diode 6 2 and the zener diode 6 3 pass through, the gate of the switching element 3 is switched.

2148-4835-PF(N),ahddub ptd 第17頁 566057 -案號—91109938 车曰日 修正_ 五、發明說明（14) " 電流旁路，所以切換元件3之on時間變短，而在切換元件3 OFF之時序上，切換元件2轉為0N。而再次2次線圈之電壓 一旦成為負的半周期，即透過電容58、電阻59、6〇，電晶 體61之基極電壓成為負電位地被充電，所以電晶體61成為 OFF °2148-4835-PF (N), ahddub ptd page 17 566057-case number—91109938 car date modification _ 5. Description of the invention (14) " Current bypass, so the on time of the switching element 3 becomes shorter, and When the switching element 3 is OFF, the switching element 2 turns to 0N. Once again, once the voltage of the coil becomes negative half cycle, that is, the capacitor 61, the resistance 59, and 60 pass through, the base voltage of the transistor 61 is charged to a negative potential, so the transistor 61 becomes OFF °.

之後，這些重複’被繼續到電容54之充電電壓上升， 而電晶體5 6成為0N(第7 (b2)圖之狀態）為止。亦即、在電 晶體56 OFF之期間，轉換器電路之振盪頻率數變大，所以 月b夠使放電燈負載電路之共振之尖銳度（或Q值），在小區 域動作，而在從電源投入到達到點燈之期間，大電流流經 k絲，同時在放電燈之兩端上，產生大電壓，而有能夠防 止所謂的冷啟動（cold start)之效果。 —然而，此期間之轉換器振盪電路之振盪頻率數，能多 ，由適當地選定齊納二極體63之齊納電壓，來設定之。去 者’、，熱計時期間一過，電晶體56之基極電壓即被旁路^ ON狀態，而電晶體56成為⑽，電晶體“ 一直為〇ff。然 ，丄攸電源投入到電晶體56達到〇N為止之預熱計時期間 =適當地選定電阻53、電容54、齊納二極體55之 壓4，來設定之。 、θAfter that, these repetitions' are continued until the charging voltage of the capacitor 54 rises, and the transistor 56 becomes 0N (the state in FIG. 7 (b2)). That is, during the period when the transistor 56 is turned off, the number of oscillation frequencies of the converter circuit becomes larger, so the month b is enough to make the sharpness (or Q value) of the resonance of the discharge lamp load circuit operate in a small area, and During the period when the lamp is turned on, a large current flows through the k-wire, and at the same time, a large voltage is generated at both ends of the discharge lamp, which has the effect of preventing a so-called cold start. -However, the number of oscillating frequencies of the converter oscillating circuit during this period can be many, and it is set by appropriately selecting the Zener voltage of the Zener diode 63. The former ', once the thermal timing period has elapsed, the base voltage of the transistor 56 is bypassed ^ ON state, and the transistor 56 becomes ⑽, the transistor "has always been 0ff. However, the power supply to the transistor is The warm-up time period before 56 reaches 0N = the voltage 4 of the resistor 53, the capacitor 54, and the Zener diode 55 are appropriately selected and set.

细如以上地，根據本實施例，從電源投入到達到點燈之 j間，大電流流經燈絲，同時在放電燈之兩端上，產生 。、壓’而有能夠防止所謂的冷啟動（c〇1d start)。 來择圈5、9之2次線圈作頂峰充電後之電壓， 獲付預熱計時電路之動作電源，所以能夠便宜而小型As detailed above, according to this embodiment, from the time when the power is turned on to the time when the lamp is turned on, a large current flows through the filament, and at the same time, is generated on both ends of the discharge lamp. And press' to prevent the so-called cold start (c0d start). To select the voltage of the secondary coil 5 and 9 for the peak charging voltage, and obtain the operating power of the preheat timing circuit, so it can be cheap and small

566057566057

又在全部的放電燈被移除之情況，如果即使投入直流 電源1，亦不動作，而能夠防止不須要之電力損失。 然而，在本實施例上，說明了將計時電路丨〇 〇，設置 在切換元件3之閘極電路上之構造，但是即使將此設置在 切換兀件2之閘極電路上，或將此設置在切換元件2、3雙 方之閘極電路上，亦可獲得相同的效果。 實施例5In addition, when all the discharge lamps are removed, if the DC power supply 1 is turned on, it will not operate, and unnecessary power loss can be prevented. However, in this embodiment, a description is given of a configuration in which the timing circuit is provided on the gate circuit of the switching element 3. The same effect can also be obtained on the gate circuits of both the switching elements 2 and 3. Example 5

第8圖，係表示本發明之實施例5之放電燈點燈裝置 電路圖。本實施例，係在實施例4上追加了保護電路。 圖中，和實施例4之第6圖相同或相當部分，附加了 一符號，而省略其說明。2〇〇係保護因放電燈之壽 ° 等之電流增加之電路之保護電路。 保護電路200上，70、71為被串聯連接之電阻，7 陽極被串聯連接之電阻71之齊納二極體，這些串 ·、、、 電容52並聯連接。73為閘極被連接至電阻7〇和電阻η = 接點的閘流體（thyristor)，其陰極被連接至切換元驾 源極’陽極透過二極體74之陰極，被連接至切換元冷Fig. 8 is a circuit diagram showing a discharge lamp lighting device according to a fifth embodiment of the present invention. In this embodiment, a protection circuit is added to Embodiment 4. In the figure, parts which are the same as or equivalent to those in Fig. 6 of Embodiment 4 are given a reference numeral, and descriptions thereof are omitted. 2000 is a protection circuit that protects a circuit that has increased current due to the life of the discharge lamp. On the protection circuit 200, 70 and 71 are resistors connected in series, and 7 anodes are connected in series with Zener diodes of resistor 71. These strings, capacitors, and capacitors 52 are connected in parallel. 73 is a gate fluid (thyristor) whose gate is connected to resistor 70 and resistance η = contact. Its cathode is connected to the switching element. The source ’anode passes through the cathode of diode 74 and is connected to the switching element.

閘極。而從閘流體73之陽極，透過電阻75， < 電源1。 傲遝接至直洛 以下，藉由第8圖 電燈點燈裝置之動作。 省略圖示的啟動電路， ，來說明表示本發明之實施例5之故 圖中，一旦電源1被投入，即藉由 以高頻率來交互地驅動切換元件Gate. From the anode of the brake fluid 73, a resistance 75 is transmitted through the < power supply 1 >. Proudly connected to Zhiluo below, with the operation of the lamp lighting device in Figure 8. The starting circuit is omitted to illustrate the reason for showing the fifth embodiment of the present invention. In the figure, once the power source 1 is turned on, the switching element is driven interactively at a high frequency.

2148-4835-PFl(N).ptc 第19頁 566057 _案號 91109938 五、發明說明（16) 2、3。在此’ 一旦放電燈負載電路L100之放電燈6之燈絲 之放電物資之消耗等理由，而放電電流減少，即因為造成 放電燈6之等效阻抗增加，所以放電燈負載電路11〇〇之電 路之共振之尖銳度（或Q值）變大，而流經此之電流增加。 而在電源投入時，從預熱計時時間終了後至達到放電 燈6放電啟動之期間，因為放電燈6之等效阻抗增加，所以 和在點燈時比較，放電燈負載電路之電路之共振之尖銳度 (或Q值）變大，而流經此之電流增加，但是如杲. 上之破裂等之損傷，而從外部空氣侵a，則不果達有到放正電常燈』 電，而造成如此的狀態繼續著。 但是，在如此的狀態上之繼續運轉，有電力損失以及 各電路兀件之劣化之問題點。放電燈負載電路L1〇〇之共振 之尖銳度（或Q值）如果變大，則和在正常點燈時比較，抗 流線圈5之兩端上，能夠得到大電壓，其2次線圈““上 亦得到大電壓it在頂峰充電後之電容52之兩端丨，和在 正常點燈時比較，能夠得到大電壓。纟此，適當地選定齊 、、、内一極體72之電壓，使閘流體73在正常點燈時F，而對 於在放電燈6之燈轉之访带# 炕、為之放電物質等，於安裝了不正常之放 電燈6時所得到的電容52之電壓，來〇N地設定的話，則切 t 2 極電流’透過二極體74、閘流體73流動，所 2 ί 停止振盪。而在閘流體73上，從直流電源1 透過電阻7 5，保掊雷冷續、证 夕义 + a &持電",L机過，所以在遮斷直流電源1為止 之刖，此狀悲被保括莫。甘仏，，1 &侏符者。其他的動作和實施例4相同。預 熱计日守電路100之二極r 1 位體50、51及電容52，為預熱計時電2148-4835-PFl (N) .ptc page 19 566057 _ case number 91109938 V. Description of the invention (16) 2, 3. Here, once the discharge lamp load circuit L100 consumes the discharge materials of the filaments of the discharge lamp 6, and the discharge current decreases, that is, the equivalent impedance of the discharge lamp 6 increases, so the circuit of the discharge lamp load circuit 1100 The sharpness (or Q value) of the resonance increases, and the current flowing through it increases. When the power is turned on, from the end of the warm-up time until the discharge lamp 6 starts to discharge, the equivalent impedance of the discharge lamp 6 increases, so the resonance of the circuit of the load circuit of the discharge lamp is compared with that at the time of lighting. The sharpness (or Q value) becomes larger, and the current flowing through it increases, but if the damage such as rupture on the above, and the invasion of a from the outside air, it may not be able to reach the normal electric lamp. And this situation continues. However, continued operation in such a state has problems of power loss and deterioration of circuit components. If the sharpness (or Q value) of the resonance of the discharge lamp load circuit L100 becomes large, compared with the time of normal lighting, a large voltage can be obtained at both ends of the choke coil 5, and the secondary coil "" It is also obtained that the large voltage it is at both ends of the capacitor 52 after the peak charging. Compared with the normal lighting, a large voltage can be obtained. Therefore, the voltage of the inner pole body 72 is properly selected so that the sluice fluid 73 is F when the lamp is normally lit, and for the band # 炕, which is the discharge substance, in the lamp turn of the discharge lamp 6, When the voltage of the capacitor 52 obtained when the abnormal discharge lamp 6 is installed is set to 0N, the current t 2 is switched to flow through the diode 74 and the gate fluid 73, so that the oscillation stops. On the brake fluid 73, the DC power supply 1 passes through the resistance 7 5 to protect the battery from thunder and cold, and Zheng Xiyi + a & holding power, "L machine has passed, so before blocking the DC power supply 1, Sadness is kept. Gan Gan ,, 1 & Dwarf Rune. Other operations are the same as those of the fourth embodiment. Preheat meter day guard circuit 100 two-pole r 1 bit body 50, 51 and capacitor 52, for preheating timer

第20頁 566057Page 566057

修正 路1 〇〇之驅動電源，同時亦是放電燈6、i 〇之點燈狀態之 出裝置。 ^ 如以上地，根據本實施例，對於因放電燈之燈絲之放 電物質之消耗等之放電燈壽命末期時、或放電管之破裂等 之故障放電燈之安裝，在如此之狀態之運轉繼續之情況 下，因為轉換器電路之振盪停止，所以能夠防止不須要的 電力損失或電路元件之劣化。 、然而，在本實施例上，說明了 2個放電燈負載電路被 並聯連接之情況，但是即使對於2個以上並聯連接之放電 燈負載電路，+須要新的元件之追加，亦能夠得到相同的 [發明效果] 有關於 源、由具有 電流之一對 (inverter) 流，使放電 置上，其中 燈、耗合電 之電容；並 路之抗流線 述一對切換 壓，來交互 負載電路内 本發明之放電燈點燈裝置，在具備了直流電 將從此直流電源所供給之直流，轉換為高頻率 切換元件之半橋式電路而成的轉換器 電路、以及藉由來自此轉換器電路之高頻率電 燈點燈之複數放電燈負載電路之放電燈點燈裝 ^述放電燈負載電路，具備了抗流線圈、放電 谷之串聯電路、以及被並聯連接至上述放電燈 具備各自一對被設置在上述各個放電燈負載電 圈而透過各自之限流元件，被並聯連接至上 ^件之2夂線圈，以來自上述2次線圈之輸出電 土驅動上述一對切換元件，所以在複數放電燈 即使移去1個以上之放電燈，剩下放電燈負 )66057The driving power of the correction circuit 100 is also the output device of the lighting state of the discharge lamp 6, i0. ^ As described above, according to this embodiment, the installation of a faulty discharge lamp at the end of the life of the discharge lamp due to the consumption of the discharge substance of the filament of the discharge lamp or the rupture of the discharge tube, etc., continues to operate in this state. In this case, since the oscillation of the converter circuit is stopped, it is possible to prevent unnecessary power loss or deterioration of circuit components. However, in this embodiment, the case where two discharge lamp load circuits are connected in parallel is explained, but even for two or more discharge lamp load circuits connected in parallel, + the addition of new components can also obtain the same [Effect of the Invention] Regarding the source, a pair of currents having an inverter is used to discharge the discharge, in which the lamp and the capacitor that consume electricity are combined; a pair of switching voltages of the parallel current-resisting line are used to interact in the load circuit. The discharge lamp lighting device of the present invention is provided with a converter circuit formed by converting a direct current supplied from the direct current power source into a half-bridge circuit of a high-frequency switching element, and a converter circuit A discharge lamp lighting device for a plurality of discharge lamp load circuits of a frequency lamp lighting circuit. The discharge lamp load circuit includes a current-proof coil, a series circuit of a discharge valley, and a pair of discharge lamps connected in parallel to each of the discharge lamps. Each of the above discharge lamp load coils is connected in parallel to the 2 夂 coil of the upper part through the respective current limiting element, so as to output from the above secondary coil. Soil driving the pair of switching elements, so that the discharge lamp even if the complex is removed at least one of the discharge lamp, the discharge lamp remaining negative) 66057

栽電路夕也* φ & 大致 電燈，亦能夠以和複數放電燈完全安裝之情況 ^ φ相同之放電燈電流，來點燈，而不須要為了驅動轉換 為電路之切換元件之專用的CT，且能小型化。 节又具備從各放電燈和耦合電容之連接點，來連接至直 =1源之正極與負極之二極體，在上述各放電燈之正常點 \KXjC 口太 本 1 ^ 、過一極體’在振盈之各半週期上，電流交互地流 至電源’來決定上述各耦合電容之電容值，所以因放電燈 $燈4之放電物質之消耗等的理由，而放電電流減少，或 小放電之正負週期内，即使產生一邊之週期之放電電流減 夕之非對稱現象，亦不使流至放電燈負載電路之電流增 大而此夠防止因電流增加之電路元件上，產生不匹配。 、^使複數放電燈負載電路之共振頻率，大致為相同地來 决疋之’所以在複數放電燈負載電路内，即使移去1個以 上之放電燈，剩下放電燈負載電路之放電燈，亦能夠以和 ^數放電燈完全安裝之情況大致相同之放電燈電流，來點 燈’同時因為放電燈之燈絲之放電物質之消耗等的理由， 放電電流減少，或在放電之正負週期内，產生一邊之週期 之=電電流減少之非對稱現象，或對於因放電管破裂等之 故1^章放電燈之安裝，使流至放電燈負載電路之電流增大， 而能夠防止因電流增加之電路元件上，產生不匹配。 一 在各放電燈之正常點燈時，使驅動轉換器電路之切換 兀件之複數抗流線圈之2次線圈之電壓，大致為相同地來 決定之，所以在放電燈正常點燈時，於複數放電燈負載電 路内，即使移去1個以上之放電燈，剩下放電燈負載電路Even if the circuit is large, the φ & large call lamp can also be installed with the same discharge lamp current as the multiple discharge lamps ^ φ, the same discharge lamp current can be used to light, without the need to drive a dedicated CT that is converted into a circuit switching element, And can be miniaturized. The section also has a connection point from the connection point of each discharge lamp and the coupling capacitor to the positive and negative diodes of the direct = 1 source. At the normal point of each of the above discharge lamps, \ KXjC port Taiben 1 ^ 'The current alternately flows to the power supply during each half cycle of the vibration surplus' to determine the capacitance values of the aforementioned coupling capacitors, so the discharge current is reduced or reduced due to the consumption of the discharge substance of the discharge lamp $ lamp 4. In the positive and negative periods of the discharge, even if the asymmetry of the discharge current in one cycle is reduced, it does not increase the current flowing to the load circuit of the discharge lamp, which is sufficient to prevent mismatches on the circuit elements due to the increased current. ^ Make the resonance frequency of the load circuit of the multiple discharge lamp approximately the same. Therefore, in the multiple discharge lamp load circuit, even if more than one discharge lamp is removed, the discharge lamp of the discharge lamp load circuit remains, It can be turned on with the same discharge lamp current as when the discharge lamp is completely installed. At the same time, the discharge current is reduced due to the consumption of the discharge substance of the filament of the discharge lamp, or it occurs during the positive and negative periods of the discharge. One side cycle = asymmetrical phenomenon of reduction of electric current, or the installation of Chapter 1 ^ discharge lamp due to rupture of the discharge tube, etc., increases the current flowing to the load circuit of the discharge lamp, and can prevent the circuit due to the increase of current There is a mismatch on the component. First, when the discharge lamps are normally lit, the voltage of the secondary coils of the plurality of anti-current coils of the switching elements of the drive converter circuit is determined approximately the same. Therefore, when the discharge lamps are normally lit, the In the discharge lamp load circuit, even if more than one discharge lamp is removed, the discharge lamp load circuit remains

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案號 91109938 五、發明說明（19) 之放電燈’亦能夠以和複數放 同之放電燈電流來點燈，在放且70全安裝之情況大致相 耗等之放電燈之壽命末期時，$燈之燈絲之放電物質之消 障放電燈之安裝狀態上之繼芦或對於因放電管破裂等之故 之振盪，而能夠防止因電流二運轉，能夠停止轉換器電路 配，同時即使放電燈之安^ 之電路元件上，產生不匹 新的元件之便宜之保護電路之=增加，亦能夠有不須追加 又％吩夂構造。 又具備將驅動轉換器電政一 之2次線圈，各自透過二極體 刀、70件之複數抗流線圈 得到的電Μ，當作驅動電源電/作接線或(wired 0Γ)所 阻作接線或(wired 〇Γ)後：m將此電源電壓透過電 時間之控制信號之預熱計時器二ί 2剛投入直流電源1，而啟動轉換器電路之後，以事先 =疋的計時期間來預熱後才啟動及點帛 事 放電物質之消耗以及放電燈管壁變黑。彳丨起垃、、、糸之 又具備了在將驅動轉換器電路之切換元件之複數抗流 線圈之2次線圈，透過各自的二極體，來作接線或 or)所得到的電壓，比事先決定的值大的情況下，停止上 述轉換器電路之切換元件之振盪之保護電路，所以在放電 燈之燈絲之放電物質之消耗等之放電燈之壽命末期時，或 對於因放電管破裂等之故障放電燈之安裝狀態上之繼續運 轉’能夠停止轉換器電路之振盪，而能夠防止因電流增加 之電路元件上，產生不匹配，同時即使放電燈之安裝數量 增加’亦能夠有不須追加新的元件之便宜之保護電路之構Case No. 91109938 V. Description of the invention (19) The discharge lamp 'can also be lit with the same discharge lamp current as the plural discharges. At the end of the life of the discharge lamp which is approximately equivalent to the discharge when it is fully installed and installed at 70, The installation condition of the discharge material of the filament of the lamp is the follow-up of the obstacle-free discharge lamp or the oscillation due to the rupture of the discharge tube, etc., which can prevent the operation due to the current two and can stop the converter circuit. On the circuit components of the safety device, an inexpensive protection circuit that does not match the new components can be added, and it can also have a structure of phenoxide without additional addition. It is also equipped with the electric coils of the secondary coil of the drive converter, each of which passes through a diode knife and 70 pieces of multiple anti-current coils, as the drive power supply / connection or (wired 0Γ) resistance wiring. After or (wired 〇Γ): m passes the power supply voltage through the preheating timer II of the control signal of the electric time, just after the DC power supply 1 is turned on, and after the converter circuit is started, it is warmed up in advance with a timing period of 疋After that, the discharge of the discharge material and the discharge lamp wall became black.彳 丨, 糸, 糸, and 具备 are equipped with the secondary coil that will drive the switching elements of the converter circuit, the secondary coil, through the respective diodes to make wiring or or) the voltage obtained, When the value determined in advance is large, the oscillation protection circuit of the switching element of the converter circuit is stopped, so at the end of the life of the discharge lamp, such as the consumption of the discharge substance of the filament of the discharge lamp, or due to the burst of the discharge tube Continued operation in the installed state of the fault discharge lamp 'can stop the oscillation of the converter circuit, and can prevent mismatches on the circuit elements due to the increase in current, and at the same time, even if the number of installation of the discharge lamp increases, there can be no additional Construction of cheap protection circuits for new components

2148-4835-PFl(N).ptc 第23頁 566057 五、發明說明（20) 造0 i ΙΙΙΗΙ 2148-4835-PF(N);ahddub.ptd 第24頁 566057 圖式簡單說明 ~ 第1圖係表示本發明之實施例1之放電燈點燈裝置之電· 路圖。 第2圖係表示本發明之實施例2之放電燈點燈裝置之電 路圖。 第3 ( a )、（ b )圖係為了說明表示本發明之實施例2之放 電燈點燈裝置之動作之波形圖。 第4 ( a )、（ b )圖係為了說明表示本發明之實施例2之放 電燈點燈裝置之動作之波形圖。 第5圖係表示本發明之實施例3之放電燈點燈裝置之電 路圖。 第6圖係表示本發明之實施例4之放電燈點燈裝置之電 路圖。 第 7(al)、(a2 ) 、（bl)、(b2 ) > (cl)、(c2 )、 (d 1 )、 （ d2 )圖係為了說明表示本發明之實施例4之放電 燈點燈裝置之動作之波形圖。 第8圖係表示本發明之實施例5之放電燈點燈裝置之電 路圖。 第9圖係表示習知之放電燈點燈裝置之電路圖。 第1 0圖係習知之放電燈點燈裝置之直流電源之電路 圖。 [符號說明] 1〜電源； 2、3〜切換元件； 5、9、1 7〜抗流線圈；2148-4835-PFl (N) .ptc Page 23 566057 V. Description of the invention (20) Make 0 i ΙΙΙΗΙ 2148-4835-PF (N); ahddub.ptd Page 24 566057 Simple illustration of the drawing ~ Picture 1 A circuit diagram showing a discharge lamp lighting device according to the first embodiment of the present invention. Fig. 2 is a circuit diagram showing a discharge lamp lighting device according to a second embodiment of the present invention. Figures 3 (a) and (b) are waveform diagrams for explaining the operation of the discharge lamp lighting device according to the second embodiment of the present invention. Figures 4 (a) and (b) are waveform diagrams for explaining the operation of the discharge lamp lighting device according to the second embodiment of the present invention. Fig. 5 is a circuit diagram showing a discharge lamp lighting device according to a third embodiment of the present invention. Fig. 6 is a circuit diagram showing a discharge lamp lighting device according to a fourth embodiment of the present invention. The 7th (al), (a2), (bl), (b2) > (cl), (c2), (d1), (d2) are diagrams for explaining the discharge lamp point of the fourth embodiment of the present invention Waveform diagram of the operation of the lamp device. Fig. 8 is a circuit diagram showing a discharge lamp lighting device according to a fifth embodiment of the present invention. Fig. 9 is a circuit diagram showing a conventional discharge lamp lighting device. Fig. 10 is a circuit diagram of a DC power supply of a conventional discharge lamp lighting device. [Symbol description] 1 ~ power supply; 2,3 ~ switching element; 5,9,17 ~ current-resistant coil;

2148-4835-PF(N);ahddub.ptd 第25頁 566057 案號 91109938 曰 修正 圖式簡單說明 5a、5b、9a、9b、17a、17b〜2 次線圈； 6、10、18〜放電燈； 7、11、19〜電容 8、 12、 20〜電容； 13、 14〜電阻； 15 、16 、21 、 22〜電阻； L100、L110、L120〜放電燈負載電路； 30、31、32、33 〜二極體； 3 4、3 5〜二極體； 52〜電容； 54〜電容； 5 6、6 1〜電晶體； 58〜電容； 100〜預熱計時電路 7 2〜齊納二極體； 7 4〜二極體； 1 0 0〜保護電路。 50、51〜二極體； 53 、59 、 60〜電阻 5 5〜齊納二極體 5 7、6 2〜二極體 6 3〜齊納二極體 7 0、71〜電阻； 73〜閘流體； 75〜電阻；2148-4835-PF (N); ahddub.ptd Page 25 566057 Case No. 91109938 Amends the diagram briefly to explain 5a, 5b, 9a, 9b, 17a, 17b ~ 2 secondary coils; 6, 10, 18 ~ discharge lamps; 7, 11, 19 ~ capacitors 8, 12, 20 ~ capacitors; 13, 14 ~ resistors; 15, 16, 21, 22 ~ resistors; L100, L110, L120 ~ discharge lamp load circuits; 30, 31, 32, 33 ~ Diodes; 3 4, 3 5 ~ diodes; 52 ~ capacitors; 54 ~ capacitors; 5 6,6 1 ~ transistors; 58 ~ capacitors; 100 ~ preheating timing circuit 7 2 ~ zener diodes; 7 4 ~ diode; 1 0 0 ~ protection circuit. 50, 51 ~ diodes; 53, 59, 60 ~ resistor 5 5 ~ zener diode 5 7,6 2 ~ diode 6 3 ~ zener diode 7 0,71 ~ resistor; 73 ~ gate Fluid; 75 ~ resistance;

2148-4835-PFl(N).ptc 第26頁2148-4835-PFl (N) .ptc Page 26

Claims (1)

566057566057 ί · 一種放電燈點燈裝置，包括： 直流電源； 之直ΐ換：(=rter)電路’由具有將從直流電源所供-，土 =二轉換為南頻率電流之一對切換（switching)元件。 之半払式電路（half bridge)而成；以及 =數放電燈負載電路，藉由來自此轉換器電路之高 率電k，使放電燈點燈； /貝 其特徵在於： 上述放電燈負載電路，包括抗流線圈（ch〇ke c〇u)、 放電燈、耦合電容（C0Upl ing condenser)之串聯電路、以 及被並聯連接至上述放電燈之電容（condensor) ; ^ * 並具備各自一對被設置在上述各個放電燈負載電路之 抗流線圈上，而透過各自之電流限制元件，被並聯連接至 上述一對切換元件之2次線圈； 而以來自上述2次線圈之輸出電壓，來交互地驅動上 述一對切換元件。 2.如申請專利範圍第1項所述的放電燈點燈裝置，其 中包括從各放電燈和麵合電容之連接點’來連接至直流電 源之正極與負極之二極體（d i 〇 d e ); 在上述各放電燈之正常點燈時，透過二極體，在振盪 之各半週期（c y c 1 e )上，使電流交互地流至電源’來決定 上述各耦合電容之電容值。 3 ·如申請專利範圍第1或2項所述的放電燈點燈裝置， 其中使複數放電燈負載電路之共振頻率’大致為相同地來ί · A discharge lamp lighting device, including: a DC power supply; a direct switching: (= rter) circuit 'by switching from-, earth = 2 to one of the south frequency current switching provided by the DC power supply element. A half-bridge circuit (half bridge); and = a discharge lamp load circuit, the discharge lamp is turned on by a high-rate electric k from this converter circuit; / characterized by: the above-mentioned discharge lamp load circuit , Including a series circuit of a choke coil, a discharge lamp, a coupling capacitor, and a capacitor connected in parallel to the discharge lamp; ^ * and each pair of It is arranged on the anti-current coil of each discharge lamp load circuit, and is connected in parallel to the secondary coil of the pair of switching elements through their respective current limiting elements; and the output voltage from the secondary coil is used to alternately The aforementioned pair of switching elements are driven. 2. The discharge lamp lighting device according to item 1 of the scope of patent application, which includes a diode (diode) connected to the positive and negative poles of the DC power source from the connection point of each discharge lamp and the surface-capacitor. During the normal lighting of each of the above discharge lamps, through the diodes, currents are alternately flowed to the power source on each half cycle (cyc 1 e) of the oscillation to determine the capacitance values of the aforementioned coupling capacitors. 3. The discharge lamp lighting device according to item 1 or 2 of the scope of patent application, wherein the resonance frequency of the load circuit of the plurality of discharge lamps is made substantially the same. 2148-4835-PF(N),ahddub.ptd 第27頁 566057 六、申請專利範圍2148-4835-PF (N), ahddub.ptd page 27 566057 6. Scope of patent application 決定之。 4 ·如申請專利範圍第1或2項所述的放電燈點燈裝置， 其中在各放電燈之正常點燈時，使驅動轉換器電路之切換 元件之複數抗流線圈之2次線圈之電壓，大致為相同地、 決定之。 & 5 ·如申請專利範圍第1或2項所述的放電燈點燈裝 其中包括預熱計時器（t i mer )，將驅動轉換器電路之L ’ 元件之複數抗流線圈之2次線圈，各自透過二極體，來換 接線或（wired or)所得到的電壓，當作驅動電源電壓作 將此電源電壓透過電阻來作接線或（wired 〇r)後之而 當作控制上述轉換器電路之切換元件之〇N時間之控二， 號0 巾J 1中6勺=，專利範圍第1或2項所述的放電燈點燈裳置 八中匕括保護電路，在將驅動轉換:置 (wlred or)所得到的電壓，事 木作接線或 來停止上述轉換器電路之切換=以值大的情況下’Decide it. 4 · The discharge lamp lighting device as described in item 1 or 2 of the scope of patent application, wherein when the discharge lamps are normally lit, the voltage of the secondary coil of the plurality of anti-current coils of the switching elements driving the converter circuit is driven. It's about the same, decide it. & 5 · The discharge lamp lighting device described in item 1 or 2 of the scope of patent application, which includes a pre-heating timer (ti mer), which will drive the secondary coil of the plurality of anti-current coils of the L 'element of the converter circuit , Each through a diode to change the voltage obtained by wiring or (wired or), as the driving power supply voltage as the power supply voltage through the resistor for wiring or (wired 0r) and then used to control the converter The switching element of the circuit is controlled at 0N time, No. 0, 6 spoons in J 1 =, the discharge lamp lighting lamp described in item 1 or 2 of the patent scope, and the protection circuit is set to convert the drive: Set (wlred or) the obtained voltage to make wiring or stop the switching of the above converter circuit = with a large value '