1231520 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係關於介電體阻擋層放電燈點燈裝置 【先前技術】 介電體阻擋層放電燈被當作’適合於個人電腦或OA 機器等使用的液晶顯示裝置的背光用光源的照明裝置使用 。其中特別是有一種被認爲很少會使液晶顯示畫面產生閃 爍的放電燈是，如日本實昭6 1 - 1 26 5 5 9號公報所記載的 ，在管狀玻璃燈容器的外表面備有電極的所謂介電體阻擋 層放電型低壓放電燈。 這種介電體阻擋層放電型低壓放電燈被用作液晶顯示 裝置的背光用光源時，必須同時點亮複數個放電燈。而隨 著顯示畫面的大型化，需要同時點亮的放電燈的數目也在 增加，因此，用以點亮這些的點燈裝置也必須由複數個反 相電路分擔驅動。第6圖所示者便是習知的這種點燈裝置 。在此第6圖的介電體阻擋層放電燈點燈裝置’複數個反 相電路100、101、102的各電路備有：具有輸入側的一次 線圈3、輸出側的二次線圈4及輸入側的三次線圈5的反 相變壓器6;跟此反相變壓器6的電感成分構成LC共振 電路的共振用電容器7;及爲了驅動此反相變壓器6’分 別將射極接地的電晶體8、9。而各反相變壓器6的二次 線圈4的一端接地，另一端分別連接介電體阻擋層放電燈 110、 111、 112° -4- (2) 1231520 爲了向一方的電晶體8供應驅動電流，直流電 2是經由電阻器1 1串聯連接在各反相電路1 〇〇、1 0 的輸入側電晶體8的基極。1對電晶體8、9的各 地，該等的集極間並聯連接反相變壓器6的一次線 此一次線圈3設有中間抽頭，此中間抽頭經由電| 串聯連接在直流電源端子2。電感器1 2由抗流線 ，將輸入到反相電路1 〇〇、1 〇 1、1 02的電流定電流 時，在1對電晶體8、9的集極間並聯連接有共振 器7。 而丨在各反相變壓器6的一次側設同步用變層 ，將此等同步用變壓器1 5的一次線圈連接在反 100、101、102的1對電晶體8、9的集極間，將 變壓器1 5的二次線圈相互並聯連接，藉此使反 100、101、102的高頻輸出電壓的相位同步，藉此 因於複數個放電燈由不同相位的高頻電壓驅動所產 爍。亦即，複數個反相電路1〇〇、101、102的頻率 ，但因分別獨立振盪，因此在該等的反相變壓器6 側產生電壓及相位相互偏移的高頻輸出。以此等高 分別點亮不同的介電體阻擋層放電燈1 1 0、1 1 1、1 : 各放電燈因起因於電壓的相位偏移的瞬間的電位差 位高的放電燈的表面漏洩電流，流進旁邊的電位低 燈。因爲反複這種現象，而引起放電燈的閃燦現象 〔專利文獻1〕 日本實開昭6 1 - 1 265 5 9號公報 源端子 1、1 02 射極接 圈3。 各器12 圈構成 化。同 用電容 i器15 相電路 同步用 相電路 防止起 生的閃 是相同 的輸出 頻輸出 12時， ，從電 的放電 (3) 1231520 〔專利文獻2〕 曰本特開2002 - 25786號公報 【發明內容】1231520 (1) Description of the invention [Technical field to which the invention belongs] The present invention relates to a dielectric barrier discharge lamp lighting device [prior art] The dielectric barrier discharge lamp is regarded as' suitable for a personal computer or OA A lighting device of a light source for a backlight of a liquid crystal display device used in a device or the like is used. Among them, there is a discharge lamp which is thought to cause little flicker in a liquid crystal display screen. As described in Japanese Publication No. 6 1-1 26 5 5 9, an outer surface of a tubular glass lamp container is provided. The electrode is a so-called dielectric barrier discharge type low-pressure discharge lamp. When such a dielectric barrier discharge type low-pressure discharge lamp is used as a light source for a backlight of a liquid crystal display device, a plurality of discharge lamps must be lit at the same time. As the display screen becomes larger, the number of discharge lamps that need to be lit at the same time is increasing. Therefore, the lighting devices used to light these must also be driven by a plurality of inverter circuits. The one shown in Fig. 6 is a conventional lighting device of this kind. Here, each of the plurality of inverter circuits 100, 101, and 102 of the dielectric barrier discharge lamp lighting device of FIG. 6 includes a primary coil 3 on the input side, a secondary coil 4 on the output side, and an input. An inverting transformer 6 of the tertiary coil 5 on the side; a resonant capacitor 7 constituting an LC resonance circuit with the inductance component of the inverting transformer 6; and transistors 8 and 9 each having an emitter grounded to drive the inverting transformer 6 ' . One end of the secondary coil 4 of each inverting transformer 6 is grounded, and the other end is respectively connected to a dielectric barrier discharge lamp 110, 111, 112 ° -4- (2) 1231520 In order to supply a driving current to one transistor 8, The direct current 2 is the base of an input-side transistor 8 connected in series to each of the inverter circuits 100 and 10 via a resistor 11. Each pair of transistors 8 and 9 is connected in parallel to the primary of the inverting transformer 6 between the collectors. This primary coil 3 is provided with an intermediate tap. This intermediate tap is connected to the DC power supply terminal 2 in series via an electric | Inductor 12 is connected to the inverting circuit 100, 10, 102 with a constant current through a choke line, and a resonator 7 is connected in parallel between the collectors of a pair of transistors 8, 9 in parallel. On the primary side of each inverter transformer 6, a synchronization layer is provided, and the primary coils of these synchronization transformers 15 are connected between the collectors of a pair of transistors 8, 9 in the reverse 100, 101, and 102, and The secondary coils of the transformer 15 are connected in parallel with each other, thereby synchronizing the phases of the high-frequency output voltages of anti-100, 101, and 102, so that a plurality of discharge lamps are driven by high-frequency voltages of different phases to produce flicker. That is, the frequencies of the plurality of inverter circuits 100, 101, and 102 oscillate independently, so high-frequency outputs with voltages and phases shifted from each other are generated on the inverter transformer 6 side. At this height, different dielectric barrier discharge lamps 1 1 0, 1 1 1, 1, respectively: the surface leakage current of each discharge lamp having a high potential difference due to the instantaneous phase shift caused by the voltage , Flows into the low potential lamp next to it. This phenomenon is repeated to cause the flashing phenomenon of the discharge lamp. [Patent Document 1] Japanese Utility Model Publication No. 6 1-1 265 5 No. 9 Source terminal 1 and emitter terminal 3 2. Each device is composed of 12 turns. The same phase capacitor circuit is used to prevent the occurrence of flicker when the phase circuit is synchronized. When the output frequency is 12 and the output frequency is 12, the discharge from electricity (3) 1231520 [Patent Document 2] Japanese Patent Laid-Open No. 2002-25786 [ Summary of the invention
但是，在如上述之介電體阻擋層放電燈點燈裝置，有 的是在各反相電路1 0 〇、1 〇 1、1 〇 2的反相變壓器6的一次 側使振盪頻率的頻率與相位的同步，但因各反相變壓器6 的耦合的參差不齊，會使二次側產生的電壓値或相位有差 異’此項差異使連接在各反相變壓器6的二次側的放電燈 產生亮度的差異，成爲閃爍的原因。However, in the dielectric barrier discharge lamp lighting device as described above, there is a case where the frequency and phase of the oscillation frequency are set on the primary side of the inverter transformer 6 of each of the inverter circuits 100, 100, and 102. Synchronous, but due to the uneven coupling of the inverter transformers 6, there will be a difference in voltage or phase generated on the secondary side. This difference causes the discharge lamps connected to the secondary side of each inverter transformer 6 to produce brightness. The difference becomes the cause of flicker.
本發明是爲了解決傳統的技術課題而發明，其目的在 提供，不會受到複數個反相電路所含的反相變壓器的耦合 度或匝數比的參差不齊的影響，能使各反相電路輸出的高 頻輸出電壓與相位以更高準確度同步，因此可以驅動複數 個介電體阻擋層放電燈，而不會產生閃燦的介電體阻擋層 放電燈點燈裝置。 本發明的介電體阻擋層放電燈點燈裝置’可在供給直 流電源後，將直流變換成高頻的交流而輸出’藉此高頻交 流輸出分別點亮不同的介電體阻擋層放電燈，其特徵爲， 上述複數個反相電路所含的反相變壓器的二次線圈的一端 相互連接在一起。 同時，本發明的介電體阻擋層放電燈點燈裝置的特徵 是，上述複數個反相電路分別備有：具有輸入側的一次線 圈、輸出側的二次線圈及輸入側的三次線圈的反相變壓器 -6 - (4) 1231520 ;連接在此反相變壓器的上述一次線圈，與此一次線圈的 電感成分構成L C共振電路的共振用電容器；及輸入側供 應直流電源及上述反相變壓器的三次線圈輸出，輸出側連 接在上述一次線圈的振盪用電晶體。 而且，本發明的介電體阻擋層放電燈點燈裝置的特徵 是，上述反相變壓器的二次線圈的另一端接地，上述複數 個介電體阻擋層放電燈分別連接在上述反相變壓器的二次 線圈的共同連接的端子，與接地之間。 而且，本發明的介電體阻擋層放電燈點燈裝置的特徵 是，上述反相變壓器的二次線圈的另一端也相互連接在一 起’上述複數個介電體阻擋層放電燈分別連接在上述反相 變壓器的二次線圈的端子間。 同時，本發明的介電體阻擋層放電燈點燈裝置，可在 供給直流電源後，將直流變換成高頻的交流而輸出，藉此 高頻交流輸出分別點亮不同的介電體阻擋層放電燈，其特 徵爲’上述複數個反相電路所含的反相變壓器的二次線圈 的一端經由同步用變壓器相互連接在一起，上述介電體阻 擋層放電燈則經由上述同步用變壓器連接在上述反相變壓 器的二次線圈。 而且，本發明的介電體阻擋層放電燈點燈裝置的特徵 是’上述複數個反相電路分別備有：具有輸入側的一次線 圈、輸出側的二次線圈及輸入側的三次線圈的反相變壓器 ;連接在此反相變壓器的上述一次線圈，與此一次線圈的 電感成分構成LC共振電路的共振用電容器；及輸入側供 (5) 1231520 應直流電源及上述反相變壓器的三次線圈輸出 接在上述一次線圈的振邊用電晶體。 而且，本發明的介電體阻擋層放電燈點燈 是，上述複數個反相電路所含的反相變壓器的 一端接地，上述二次線圈的另一端分別連接同 的一次線圈的一端，上述各同步用變壓器的二 並聯連接在一起，上述同步用變壓器的一次線 及接地間，分別連接介電體阻擋層放電燈。 而且，本發明的介電體阻擋層放電燈點燈 是，上述各同步用變壓器的二次線圈的一端接 相互連接在一起。 而且，本發明的介電體阻擋層放電燈點燈 是，上述各同步用變壓器的二次線圈的一端是 的開關接地。 在上述本發明的介電體阻擋層放電燈點燈 個反相電路所含的反相變壓器的二次線圈的一 在一起，因此，各反相電路的輸出成爲是同一 一相位的交流電壓。亦即，因爲複數個反相電 相變壓器的二次線圈的一端相互連接在一起， 部分的輸出電壓及相位會相互一致。其結果， 器的二次線圈經由鐵芯向一次線圈傳播同一電 、高頻電壓，因此，反相變壓器的一次線圈也因 相位的高頻電壓而產生共振。 因此，電壓及相位相互對齊的各反相電路 ’輸出側連 裝置的特徵 二次線圈的 步用變壓器 次線圈相互 圈的另一端 裝置的特徵 地，另一端 裝置的特徵 經由可開閉 裝置，複數 端相互連接 電壓値，同 路所含的反 因此，這一 從反相變壓 壓及相位的 同一電壓及 的輸出便分 -8- (6) 1231520 別供給連接在反相變壓器的二次線圈的介電體阻擋 燈，將其點亮，因此，各放電燈將恆常以相同亮度 可以防止閃爍。 【實施方式】 茲參照附圖詳述本發明的實施形態。第1圖表 明第1實施形態的介電體阻擋層放電燈點燈裝置的 。本實施形態是每一反相電路1 0 0、1 01、1 0 2分別 流電源2。複數個反相電路1 〇 〇、1 〇 1、1 0 2的架構 是以一^般習知的共振型反相電路構成。 反相電路100、101、102分別備有：具有輸入 次線圈3及輸出側的二次線圈4與輸入側的三次線 反相變壓器6;與此反相變壓器6的電感成分構成 振電路的共振用電容器7 ;爲了驅動反相變壓器6 射極分別接地的電晶體8、9。 各反相變壓器6的二次線圈4的一端接地，二 4的另一端共同連接在一起。 爲了向一方的電晶體8供應驅動電流，直流電 聯經由電阻器1 1連接在反相電路100、101、102 輸入側的電晶體8的基極。各自的射極接地的1對 8、9的集極間，並聯連接反相變壓器6的設有中 的一次線圈3，同時並聯連接共振用電容器7。 同時，爲了將輸入各反相電路100、101、102 電流定電流化，直流電源2串聯經由抗流線圈構成 層放電 發光， 示本發 電路圖 設有直 相同， 側的一 圈5的 LC共 各自的 次線圈 源2串 的各個 電晶體 間抽頭 的輸入 的電感 -9 - (7) 1231520 器1 2連接在反相變壓器6的一次線圈3的中間抽頭。 反相變壓益6的各一·次線圈4的阻數較一^次線圈3多 ，藉此將二次側昇 壓。各反相變壓器6的二次線圈4的一端接地，另一 端則相互結線。而，在二次線圈4的另一端分別並聯連接 介電體阻擋層放電燈1 1 0、111、1 1 2，藉由反相電路〗〇 〇 、101、102的各輸出高頻電壓點亮介電體阻擋層放電燈 110、 111、 112° 設在各反相變壓器6的三次線圈5的一端連接在電晶 體8的基極側，另一端連接在電晶體9的基極側，將三次 線圈5產生的電壓回授到電晶體8、9的基極。 其次說明上述架構的第1實施形態的介電體阻擋層放 電燈點燈裝置的動作。加上直流電源2後，電流通過各電 感器1 2在反相變壓器6的一次線圈3流通，同時，從直 流電源2輸出的電壓經由電阻器1 1加在電晶體8的基極 〇 各反相變壓器6的一次線圈3與三次線圈5的感抗與 共振用電容器7產生共振，在反相變壓器6的三次線圈5 的端子間感應出，電壓上昇相當於反相變壓器6的一次線 圈3與三次線圈5的匝數比的高電壓，同時，在反相變壓 器6的三次線圈5流通，與在一次線圈3流通的電流方向 相同的電流，產生自激振盪，以共振頻率使電晶體8、9 交互導通。 各反相電路100、101、102的反相變壓器會依其一次 -10- (8) 1231520 線圈3與二次線圈4的匝數比昇壓。因爲各反相變壓器6 的二次線圈4側相互連接在一起，此等連接部分的輸出電 壓及相位相互一致。其結果，從反相變壓器的二次線圈經 由鐵芯向一次線圈傳播同一電壓及相位的高頻電壓，因此 ，反相變壓器的一次線圈也因同一電壓及相位的高頻電壓 而產生共振。 其結果，複數個介電體阻擋層放電燈1 1 0、1 1 1、1 1 2 分別由相位一致的交流點燈，因此整個點燈裝置能夠以不 產生閃爍的狀態點亮複數個介電體阻擋層放電燈。 其次，參照第2圖說明本發明的第2實施形態的介電 體阻擋層放電燈點燈裝置。第2實施形態的介電體阻擋層 放電燈點燈裝置的特徵是，將複數個反相電路1 00、1 0 1 、：I 02的反相變壓器6的二次線圈4的兩端相互並聯連接 。而，複數個介電體阻擋層放電燈1 1 0、1 1 1、1 1 2是分別 連接在複數個反相電路100、101、102的反相變壓器6的 二次線圈4的兩端間。其他架構與第1圖所示的第1實施 形態相同。 此第2實施形態的介電體阻擋層放電燈點燈裝置，也 可以藉由跟第1實施形態同樣的動作，使加在由複數個反 相電路1 〇〇、1 〇 1、1 02分別驅動點燈的複數個介電體阻擋 層放電燈1 1 〇、. 1 1 1、1 1 2的交流的相位同步，以不產生閃 爍的狀態點燈。 其次，參照第3圖說明本發明的第3實施形態的介電 體阻擋層放電燈點燈裝置。第3實施形態的介電體阻擋層 -11 - (9) 1231520 放電燈點燈裝置的特徵是，將複數個反相電路1 0 0、1 0 1 、1 02的反相變壓器6的二次線圈4的一端接地，在另一 端串聯連接同步用變壓器1 〇的一次線圈，經過此同步用 變壓器1 〇的一次線圈對各介電體阻擋層放電燈1 1 0、1 1 1 、1 1 2供電。同時，各同步用變壓器1 〇的二次線圈是並 聯連接在一起。同步用變壓器1 0的一次線圈與二次線圈 的匝數比是1。其他架構與第1圖所示的第1實施形態相 同。 在本實施形態，介電體阻擋層放電燈點燈裝置也是與 第1圖所示的第1實施形態相同的動作原理，使反相電路 1 0 0、1 0 1、1 0 2的各個一次側同步共振，其結果，可以藉 由相位一致的交流使複數個介電體阻擋層放電燈11〇、 111' 112以不產生閃爍的狀態點亮。同時，可以藉由一 對電極使複數介電體阻擋層放電燈1 1 〇、1 1 1、1 1 2分別點 亮。 其次，參照第4圖說明本發明的第4實施形態的介電 體阻擋層放電燈點燈裝置。第4實施形態的介電體阻擋層 放電燈點燈裝置的特徵是，將複數個反相電路1 〇 0、1 01 、1 0 2的反相變壓器6的二次線圈4的一端接地，在另一 端串聯連接同步用變壓器1 〇的一次線圈，經過此同步用 變壓器1 〇的一次線圈對各介電體阻擋層放電燈1 1 0、1 1 1 、112供電。而，各同步用變壓器10的二次線圈是將其 一端與其他同步用變壓器1 0的二次線圈的一端並聯連接 ，各同步用變壓器10的二次線圈的另一端接地。同步用 -12- (10) 1231520 變壓器1 〇的一次線圈與二次線圈的匝數比是1。其他架 構與第1圖所示的第1實施形態相同。 本實施形態的介電體阻擋層放電燈點燈裝置，也是與 第1圖所示的第1實施形態相同的動作原理，使反相電路 1 00、1 0 1、1 02的各個一次側同步共振，而二次側也是將 同步用變壓器1 〇並聯，可藉此使對介電體阻擋層放電燈 1 1 0、1 1 1、1 1 2的交流的相位良好一致，其結果，可以藉 由相位一致的交流使複數個介電體阻擋層放電燈1 1 0、 1 1 1、1 1 2以不產生閃爍的狀態點亮。 其次，參照第5圖說明本發明的第5實施形態的介電 體阻擋層放電燈點燈裝置。第5實施形態的介電體阻擋層 放電燈點燈裝置的特徵是，將複數個反相電路1 0 0、1 0 1 、：I 〇 2的反相變壓器6的二次線圈4的一端接地，在另一 端串聯連接同步用變壓器1 0的一次線圈，經過此同步用 變壓器1 〇的一次線圈對各介電體阻擋層放電燈1 1 0、Π 1 、：[1 2供電。而，各同步用變壓器1 0的二次線圈是將其 一端與其他同步用變壓器1 〇的二次線圈的一端並聯連接 ，各同步用變壓器1 0的二次線圈的另一端經由開關1 3接 地。同步用變壓器1 0的一次線圈與二次線圈的匝數比是 j。其他架構與第1圖所示的第1實施形態相同。 本實施形態的介電體阻擋層放電燈點燈裝置，在開關 1 3呈開路的狀態時，成爲與第1圖所示的第1實施形態 等效的電路架構，因此藉由跟第1圖所示的第1實施形態 相同的動作原理，使反相電路1 0 0、1 〇 1、1 〇 2的各個一次 -13- (11) 1231520 側同步共振，其結果，可以藉由相位一致的交流使複數個 介電體阻擋層放電燈 Η 0、1 1 1、1 1 2以不產生閃爍的狀 態點亮。同時，本實施形態的介電體阻擋層放電燈點燈裝 置，在開關1 3呈閉路的狀態時，成爲與第4圖所示的第 4實施形態等效的電路架構，因此，可以藉由跟第4實施 形態相同的動作，以相位一致的交流使複數個介電體阻擋 層放電燈1 1 0、Π 1、1 1 2以不產生閃爍的狀態點亮。 依據上述本發明時，上述本發明的介電體阻擋層放電 燈點燈裝置因爲複數個反相電路所含的各反相變壓器的二 次線圈的一端相互連結在一起，因此，各反相電路的輸出 是同一電壓値、同一相位的交流電壓。亦即，因爲複數個 反相電路所含的各反相變壓器的二次線圈的一端相互連結 在一起，這一部分的輸出電壓及相位會相互一致。其結果 ，從反相變壓器的二次線圈經由鐵芯向一次線圈傳播同一 電壓及同一相位的高頻電壓，反相變壓器的一次側也以同 一電壓及同一相位的高頻電壓產生共振。 因此，電壓及相位相互對齊的各反相電路的輸出便分 別供給連接在反相變壓器的二次線圈的介電體阻擋層放電 燈，將其點亮，因此，各放電燈將恆常以相同亮度發光， 可以防止閃爍。 【圖式簡單說明】 第1圖係本發明第1實施形態的電路圖。 第2圖係本發明第2實施形態的電路圖。 •14- (12) (12)1231520 第3圖係本發明第3實施形態的電路圖。 第4圖係本發明第4實施形態的電路圖。 第5圖係本發明第5實施形態的電路圖。 第6圖係傳統的介電體阻擋層放電燈點燈裝置的電路 圖。 〔圖號說明〕 2 :直流電源 3 : —次線圈 4 :二次線圈 5 :三次線圈 6 :反相變壓器 7 :共振用電容器 8 :電晶體 ， 9 :電晶體 1 〇 :同步用變壓器 1 1 :電阻器 12 :電感器 1 3 :開關 1 〇 〇 :反相電路 1 〇 1 :反相電路 102 :反相電路 1 1 〇 :介電體阻擋層放電燈 1 1 1 :介電體阻擋層放電燈 -15- 1231520 (13) 1 1 2 :介電體阻擋層放電燈The present invention is invented in order to solve the conventional technical problems, and its purpose is to provide that each inverter can not be affected by the coupling degree or the unevenness of the turns ratio of the inverter transformers included in the plurality of inverter circuits. The high-frequency output voltage and phase of the circuit output are synchronized with higher accuracy, so that a plurality of dielectric barrier discharge lamps can be driven without generating a flashing dielectric barrier discharge lamp lighting device. The dielectric barrier discharge lamp lighting device according to the present invention 'can convert DC to high-frequency AC and output after supplying DC power', whereby the high-frequency AC output illuminates different dielectric barrier discharge lamps It is characterized in that one end of a secondary coil of an inverter transformer included in the plurality of inverter circuits is connected to each other. At the same time, the dielectric barrier discharge lamp lighting device of the present invention is characterized in that each of the plurality of inverting circuits is provided with: an input side primary coil, an output side secondary coil, and an input side tertiary coil. Phase transformer-6-(4) 1231520; the above-mentioned primary coil connected to this inverting transformer, and the resonance capacitor of this primary coil forming an LC resonant circuit; and the input side supplies DC power and the above-mentioned inverting transformer three times The coil output is connected to the oscillation transistor of the primary coil on the output side. In addition, the dielectric barrier discharge lamp lighting device of the present invention is characterized in that the other end of the secondary coil of the inverting transformer is grounded, and the plurality of dielectric barrier discharge lamps are respectively connected to the inverting transformer. The common terminal of the secondary coil is connected to the ground. In addition, the dielectric barrier discharge lamp lighting device of the present invention is characterized in that the other ends of the secondary coils of the inverting transformer are also connected to each other. 'The plurality of dielectric barrier discharge lamps are connected to the above. Between the terminals of the secondary coil of the inverter transformer. At the same time, the dielectric barrier discharge lamp lighting device of the present invention can convert DC to high-frequency AC and output it after supplying DC power, whereby the high-frequency AC output illuminates different dielectric barrier layers. A discharge lamp is characterized in that one end of the secondary coils of the inverter transformers included in the plurality of inverter circuits is connected to each other via a synchronization transformer, and the dielectric barrier discharge lamp is connected to the synchronization transformer via the synchronization transformer. The secondary coil of the above-mentioned inverter transformer. Furthermore, the dielectric barrier discharge lamp lighting device of the present invention is characterized in that 'the plurality of inverting circuits are respectively provided with a primary coil having an input side, a secondary coil having an output side and a tertiary coil having an input side. Phase transformer; the above-mentioned primary coil connected to this inverting transformer, and the resonant capacitor of the LC resonant circuit that constitutes the inductance component of this primary coil; and the input side for (5) 1231520 DC power supply and the tertiary coil output of the above-mentioned inverting transformer Connected to the side of the primary coil transistor. Furthermore, in the dielectric barrier discharge lamp of the present invention, one end of the inverting transformer included in the plurality of inverting circuits is grounded, and the other end of the secondary coil is connected to one end of the same primary coil, respectively. The two synchronization transformers are connected in parallel. The primary line and the ground of the synchronization transformer are connected to a dielectric barrier discharge lamp, respectively. In the dielectric barrier discharge lamp of the present invention, one end of the secondary coil of each of the synchronization transformers is connected to each other. In the dielectric barrier discharge lamp of the present invention, the switch of one end of the secondary coil of each of the synchronization transformers described above is grounded. In the above-mentioned dielectric barrier discharge lamp of the present invention, one of the secondary coils of the inverter transformers included in the inverter circuits is turned on. Therefore, the outputs of the inverter circuits are AC voltages of the same phase. . That is, because one end of the secondary coils of the plurality of inverting electric phase transformers are connected to each other, the output voltages and phases of some parts will be consistent with each other. As a result, the secondary coil of the transformer transmits the same electric and high-frequency voltage to the primary coil through the iron core. Therefore, the primary coil of the inverter transformer also resonates due to the high-frequency voltage of the phase. Therefore, the voltage and phase are aligned with each other. The characteristics of the output-side connected devices are the characteristics of the secondary coil, the step transformer of the secondary coil, the characteristic of the other end device, and the characteristic of the other end device via the openable and closable device. Connect the voltage 値 to each other. Therefore, the same voltage and output from the reverse phase transformer and phase are divided into -8- (6) 1231520. Do not supply the secondary coil connected to the reverse transformer. The dielectric blocks the lamp and lights it, so each discharge lamp will always be at the same brightness to prevent flicker. [Embodiment] An embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 shows the dielectric barrier discharge lamp lighting device of the first embodiment. In this embodiment, each of the inverter circuits 100, 101, and 102 is supplied with a power source 2 separately. The structure of the plurality of inverter circuits 100, 101, and 102 is a conventional resonance type inverter circuit. The inverting circuits 100, 101, and 102 are respectively provided with an input secondary coil 3, a secondary coil 4 on the output side, and a tertiary line inverting transformer 6 on the input side; the inductance component of this inverting transformer 6 constitutes the resonance of the vibration circuit. Capacitors 7; transistors 8 and 9 whose emitters are grounded in order to drive the inverter transformer 6. One end of the secondary coil 4 of each inverter transformer 6 is grounded, and the other ends of the two coils 4 are commonly connected together. In order to supply a driving current to one transistor 8, a DC link is connected to the base of the transistor 8 on the input side of the inverter circuits 100, 101, and 102 via a resistor 11. Between the collectors of a pair of 8, 9 whose emitters are grounded, the primary coil 3 of the inverter transformer 6 provided in parallel is connected in parallel, and the resonance capacitor 7 is connected in parallel. At the same time, in order to make the currents of the input inverter circuits 100, 101, and 102 constant, the DC power supply 2 emits light in series through the current-constant coil constituting layer. The circuit diagram shown in this issue is provided with the same LC. The inductance of the input of the taps between the transistors of the secondary coil source 2 string -9-(7) 1231520 is connected to the middle tap of the primary coil 3 of the inverting transformer 6. Each primary winding 4 of the reverse transformer 6 has more resistance than the primary winding 3, thereby boosting the secondary side. One end of the secondary coil 4 of each inverter transformer 6 is grounded, and the other end is connected to each other. Dielectric barrier discharge lamps 1 10, 111, and 1 2 are connected in parallel to the other end of the secondary coil 4, respectively, and lighted by the output high-frequency voltages of the inverter circuits [00, 101, 102]. Dielectric barrier discharge lamps 110, 111, 112 ° One end of the tertiary coil 5 provided in each inverting transformer 6 is connected to the base side of the transistor 8 and the other end is connected to the base side of the transistor 9. The voltage generated by the coil 5 is fed back to the bases of the transistors 8 and 9. Next, the operation of the dielectric barrier layer discharge lamp lighting device according to the first embodiment of the above-mentioned structure will be described. After the DC power source 2 is added, current flows through the primary coil 3 of the inverting transformer 6 through the inductors 12, and at the same time, the voltage output from the DC power source 2 is applied to the base of the transistor 8 via the resistor 11 The inductive reactance and resonance capacitor 7 of the primary coil 3 and the tertiary coil 5 of the phase transformer 6 resonate and is induced between the terminals of the tertiary coil 5 of the inverter transformer 6, and the voltage rise is equivalent to the primary coil 3 and The high voltage of the turns ratio of the tertiary coil 5 flows through the tertiary coil 5 of the inverting transformer 6 at the same time. The current in the same direction as the current flowing through the primary coil 3 generates self-excited oscillation. 9 Interactive conduction. The inverting transformers of each of the inverting circuits 100, 101, and 102 will step up according to the turns ratio of the primary -10- (8) 1231520 coil 3 and the secondary coil 4. Since the secondary coil 4 sides of the respective inverter transformers 6 are connected to each other, the output voltages and phases of these connection portions are consistent with each other. As a result, the high-frequency voltage of the same voltage and phase is propagated from the secondary coil of the inverter transformer to the primary coil through the iron core. Therefore, the primary coil of the inverter transformer also resonates due to the high-frequency voltage of the same voltage and phase. As a result, the plurality of dielectric barrier discharge lamps 1 1 0, 1 1 1 and 1 1 2 are respectively lit by alternating AC phases, so that the entire lighting device can illuminate the plurality of dielectrics without causing flicker. Bulk barrier discharge lamp. Next, a dielectric barrier discharge lamp lighting device according to a second embodiment of the present invention will be described with reference to Fig. 2. The dielectric barrier discharge lamp lighting device according to the second embodiment is characterized in that the two ends of the secondary coil 4 of the inverter transformer 6 of the plurality of inverter circuits 100, 10, 1 and 102 are connected in parallel with each other. connection. In addition, the plurality of dielectric barrier discharge lamps 1 10, 1 1 1, 1 1 2 are connected between both ends of the secondary coil 4 of the inverter transformer 6 of the plurality of inverter circuits 100, 101, and 102, respectively. . The other structures are the same as those of the first embodiment shown in FIG. The dielectric barrier discharge lamp lighting device of this second embodiment can also be added to a plurality of inverter circuits 100, 100, and 102 by the same operation as in the first embodiment. The plurality of dielectric barrier discharge lamps 1 1 0, 1 1 1, 1 1 2 that drive the lighting are synchronized in phase with each other to light the lamps without causing flicker. Next, a dielectric barrier discharge lamp lighting device according to a third embodiment of the present invention will be described with reference to Fig. 3. The dielectric barrier layer of the third embodiment-11-(9) 1231520 A discharge lamp lighting device is characterized in that a plurality of inverting circuits 1 0 0, 1 0 1 and 10 02 One end of the coil 4 is grounded, and a primary coil of the synchronization transformer 10 is connected in series to the other end. The primary coil of the synchronization transformer 10 passes through the dielectric barrier discharge lamps 1 1 0, 1 1 1, 1 1 2 powered by. At the same time, the secondary coils of the synchronization transformers 10 are connected in parallel. The turns ratio of the primary coil to the secondary coil of the synchronization transformer 10 is one. The other structure is the same as that of the first embodiment shown in FIG. In this embodiment, the dielectric barrier discharge lamp lighting device also has the same operating principle as that of the first embodiment shown in FIG. 1, and each of the inverter circuits 1 0 0, 1 0 1, and 102 is operated once. As a result of the side-synchronous resonance, a plurality of dielectric barrier layer discharge lamps 11 and 111 '112 can be lit in a state in which flicker does not occur by alternating currents with a consistent phase. At the same time, the plurality of dielectric barrier discharge lamps 1 1 0, 1 1 1 and 1 1 2 can be lit by a pair of electrodes, respectively. Next, a dielectric barrier discharge lamp lighting device according to a fourth embodiment of the present invention will be described with reference to Fig. 4. The dielectric barrier discharge lamp lighting device of the fourth embodiment is characterized in that one end of a secondary coil 4 of an inverter transformer 6 of a plurality of inverter circuits 100, 1 01, and 102 is grounded, and The other end is connected in series to the primary coil of the synchronization transformer 10, and the dielectric barrier discharge lamps 1 1 0, 1 1 1 and 112 are powered by the primary coil of the synchronization transformer 10. In addition, one end of the secondary coil of each synchronization transformer 10 is connected in parallel with one end of a secondary coil of another synchronization transformer 10, and the other end of the secondary coil of each synchronization transformer 10 is grounded. For synchronization -12- (10) 1231520 Transformer 10 has a turns ratio of 1 to 1. The other structures are the same as those of the first embodiment shown in FIG. The dielectric barrier discharge lamp lighting device of this embodiment also has the same operating principle as that of the first embodiment shown in FIG. 1, and synchronizes the primary sides of the inverter circuits 100, 1 0, and 1 02. Resonance, and the synchronization transformer 10 is also connected in parallel on the secondary side, which can make the AC phase of the dielectric barrier discharge lamp 1 10, 1 1 1, 1 1 2 well consistent. As a result, you can borrow The plurality of dielectric barrier discharge lamps 1 1 0, 1 1 1 and 1 1 2 are lit by a phase-consistent alternating current in a state in which flicker is not generated. Next, a dielectric barrier discharge lamp lighting device according to a fifth embodiment of the present invention will be described with reference to Fig. 5. A characteristic of the dielectric barrier discharge lamp lighting device according to the fifth embodiment is that one end of the secondary coil 4 of the inverter transformer 6 of the plurality of inverter circuits 100, 100, and 100 is grounded. A primary coil of the synchronization transformer 10 is connected in series at the other end, and the dielectric barrier discharge lamps 1 1 0, Π 1, and [12] are powered by the primary coil of the synchronization transformer 10. The secondary coil of each synchronization transformer 10 is connected in parallel with one end of one of the secondary coils of the other synchronization transformers 10, and the other end of the secondary coil of each synchronization transformer 10 is grounded via the switch 13. . The turns ratio of the primary coil to the secondary coil of the synchronization transformer 10 is j. The other structures are the same as those of the first embodiment shown in FIG. The dielectric barrier discharge lamp lighting device of this embodiment has a circuit structure equivalent to that of the first embodiment shown in FIG. 1 when the switch 13 is in an open circuit. The operation principle of the first embodiment shown is the same, and each of the inverter circuits 100, 1, 101, and 10 is resynchronized on the -13- (11) 1231520 side. As a result, the phases can be matched by phase. The alternating current lights up the plurality of dielectric barrier discharge lamps Η 0, 1 1 1, 1 1 2 in a state where no flicker occurs. At the same time, the dielectric barrier discharge lamp lighting device of this embodiment has a circuit structure equivalent to the fourth embodiment shown in FIG. 4 when the switch 13 is in a closed circuit state. The operation is the same as that of the fourth embodiment, and the plurality of dielectric barrier discharge lamps 1 10, Π 1, and 1 2 are lit in a state where no flicker occurs by alternating currents in phase. According to the present invention, since the dielectric barrier discharge lamp lighting device of the present invention is connected to one end of the secondary coil of each of the inverter transformers included in the plurality of inverter circuits, each inverter circuit The output of AC is AC voltage of the same voltage and phase. That is, because one end of the secondary coils of each of the inverting transformers included in the plurality of inverting circuits are connected to each other, the output voltage and phase of this part will be consistent with each other. As a result, the high-frequency voltage of the same voltage and the same phase is propagated from the secondary coil of the inverter transformer to the primary coil through the iron core, and the primary side of the inverter transformer also resonates with the same voltage and high-frequency voltage of the same phase. Therefore, the outputs of the inverter circuits whose voltages and phases are aligned with each other are respectively supplied to the dielectric barrier discharge lamps connected to the secondary coils of the inverter transformers, so that they are always the same. Brightness prevents flicker. [Brief description of the drawings] Fig. 1 is a circuit diagram of the first embodiment of the present invention. Fig. 2 is a circuit diagram of a second embodiment of the present invention. • 14- (12) (12) 1231520 Fig. 3 is a circuit diagram of a third embodiment of the present invention. Fig. 4 is a circuit diagram of a fourth embodiment of the present invention. Fig. 5 is a circuit diagram of a fifth embodiment of the present invention. Fig. 6 is a circuit diagram of a conventional dielectric barrier discharge lamp lighting device. [Description of drawing number] 2: DC power supply 3: Secondary coil 4: Secondary coil 5: Tertiary coil 6: Inverter transformer 7: Resonant capacitor 8: Transistor 9: Transistor 1 〇: Synchronous transformer 1 1 : Resistor 12: Inductor 1 3: Switch 1 〇: Inverting circuit 1 〇1: Inverting circuit 102: Inverting circuit 1 1 〇: Dielectric barrier layer discharge lamp 1 1 1: Dielectric barrier layer Discharge lamp-15- 1231520 (13) 1 1 2: Dielectric barrier discharge lamp