M368162 五、新型說明： 【新型所屬之技術領域】 本創作有關於一種燈管驅動系統，且特別是有關於一 種具有隔離作用之燈管驅動系統。 【先前技術】 近年來隨著光電技術的發展，數位顯示器逐漸普及’ 又以液晶面板為其中主流的數位顯示媒介，廣泛應用於電 視、手機、觸控顯示器、數位相機以及各種資訊家電產品 中。於實際應用中，液晶面板需要穩定的燈管驅動系統以 提供南品質的光源。 請參閱圖一，圖一係繪示先前技術中一種燈管驅動系統1 的示意圖。於此實施例中’燈管驅動系統1包含直流電源供應 器10、波型產生器12以及變壓器14，且燈管驅動系統1用以 駆動燈管16。在傳統的燈管驅動系統1中，變壓器14用以將 由一次側(直流電源供應器10與波型產生器12)輸入之電源訊 號進行升壓’以提供給二次側的燈管16使用。 在上述電壓轉換過程中，為了使用者的安全，變壓器14 的設計必需符合安全規範。例如於實際應用中，當一次侧為 20〜30V電壓且需升壓至二次側為400V電壓時，傳統的變壓 器結構中一、二次侧之間需要12mm的安全距離(如圖一所 示）。若每一組變壓器皆佔用12mm的距離，則應用在多燈管 之燈管驅動系統中其設置面積將相當可觀，與現在數位顯 示器所追求的輕量化、薄型化目標相抵觸。 請參閱圖二’圖二係續'示先前技術中另一種燈管驅動系統 M368162 2的示意圖。於此實施例中，燈管驅動系統2包含直流電源供 應器20、波型產生器22、隔離變壓器24以及驅動變壓器26， 揭露於中華民國專利號M314404中。 如圖二所示，燈管驅動系統2係利用兩級的變壓器（隔離 變壓器24與驅動變壓器26)前後串連以對輸入的電源訊號進 , 行處理，並用以驅動燈管28。藉此每一變壓器(隔離變壓器24 與驅動變壓器26)所需採用的安全距離可以縮短。然而，在燈 管驅動系統2中，共利用兩組變壓器方可達成安全規範的需 • 求’並且額外設置的變壓器將使製造成本因而提高。 為了解決上述問題’本創作提出一種燈管驅動系統’其 包含具有隔離結構的變壓器，以解決上述問題。 【新型内容】 本創作之一範疇在於提供一種燈管驅動系統，燈管驅 動系統包含直流電源供應器、波型產生器、變壓器以及交流 輸出級。 鲁 σ根據本創作之一具體實施例，波型產生器與直流電源供應 器電性連接並產生輸入波型信號。 變壓器包含主繞線管、磁芯組合、兩個次繞線管容置構 ，以及兩個次繞線管。主繞線管其内具有第—通道且主繞線 s本身界疋分別位於第—通道之兩個相對開口處之兩個端 =低壓織_繞於域線管上，且健嫩_接至波 里產生器。兩個次繞線管容置構件分別自主繞線管之兩個 2 =朝該第-通迢之轴向向外延伸。其中，每—個次繞線 s各置構件包含遮蔽殼體以及容置人口。賴殼體其内具 M368162 有與主繞線管之外表面隔離之容置空間，且容置空間係與 主繞線管内之第一通道連通。遮蔽殼體之外形構成容置入 口。兩個次繞線管中之每一次繞線管其内具有第二通道且 其上纏繞高壓侧繞線。此外，兩個次繞線管分別從兩個次 繞線管容置構件個別的容置入口設置於兩個容置空間中， 致使每一次繞線管上之高壓侧繞線與主繞線管上之低壓側 繞線隔離。磁芯組合係設置以部份地穿過主繞線管内之第 一通道與兩個次繞線管内之個別的第二通道。 於實際應用中，變壓器中之主繞線管及兩個次繞線管 容置構件可一體成型。另外，於較佳具體實施例中，主繞 線管及兩個次繞線管容置構件可以由至少耐6〇〇伏特之高 絕緣材料所製成。 ° 燈管驅動系統之交流輸出級可分別與變壓財每一次繞 二管之祕舰線雜連接。交流輪岐用喊生至少一交流 電源輸出以推動至少一燈管。 ；| 於本創作之燈管驅動系統所採用之變壓 ϊ主繞線管隔離。因此，遮蔽殼體 ，壓側繞線(一次側）間之沿面距離符合安全規範。由於ί 變·之紐殼體已提供了適當的沿面距離，故ί 及其採用的高絕緣材料可減少變_在習知 :斤需的安全雜，因此可進—麵小顏及 驅動系統的尺寸。 M368162 相較於先前技術，本創作的燈管驅動系統採用上 置===·:較小的設置空__設 供給。藉此並可提供燈管穩定的電源 裝置上，且特別是薄型化或可攜式_示製置。 關於本創作之優點與精神可以藉由 所附圖式得騎-步的瞭解。 ㈣作較及 【實施方式】 清參閱圖三。圖三繪示根據本創作 中燈管驅_統3之功能方塊圖。 例 如圖二所示，燈管驅動系統3包含直流電源供應器％、 波，產生器32、變壓器34以及交流輸出級36。於此實施例中， 燈管驅動系統3係用以驅動四組燈管％，但本創作並不限於 四組燈管。於實際應用中，燈管驅動系統3所對應的燈管總數 可視實際應用需求而設計’例如在燈管驅動系統3中設置複數 組變壓器以對應更多燈管。其中，燈管38可分別為冷陰極管 (Cold Cathode Fluorescent Lamp, CCFL)。 於此實施例中，波型產生器32與直流電源供應器3〇電性 連接並產生輸入波型信號。變壓器34對輸入波型信號進行變 壓處理並傳送至交流輸出級36。最後，與變壓器34電性連接 的交流輸出級36分別產生四組交流電源輸出以推動上述四組 燈管38。 ’ 請一併參閱圖四，圖四繪示圖三中燈管驅動系統3之示 意圖。在此實施例中，燈管驅動系統3的直流電源供應器3〇 M368162 進步包含父流/直流轉換|§ 300、功率因素校正^p0wer fact〇r correction, PFC)電路302以及直流整流器304。功率因素校正 電路302與交流/直流轉換器300輕接。而直流整流器304與 功率因素校正電路302耦接。 如圖四所示’交流/直流轉換器300進一步耦接至外部的 市電電源40，並且交流/直流轉換器300可將市電電源4〇轉換 為直流電源輸入。功率因素校正電路302用以調整直流電源輸 入之功率因素(power factor)。直流電源輸入亦可再經過直流整 流器304的整流處理後傳送至波型產生器32。最終，直流電 源供應器30產生的直流電源輸入可推動波型產生器32產生輸 入波型信號。 於實際應用中，波型產生器32可包含全橋轉換電路、半 橋轉換電路或推挽式轉換電路，但不以此為限。於此實施例 中，波型產生器32可包含透過轉換電路架構所形成的方波切 換器320(如圖四所示）。也就是說，在本實施例的波型產生器 32架構之下，方波切換器320受直流電源供應器3〇驅動產生 之一組輸入方波信號，這組輸入方波信號即為本創作中波型產 生器32產生的輸入波型信號。此外，波型產生器32柄接至變 壓器34中的低壓侧繞線，本創作之變壓器34的結構實施例如 下所述。 睛一併參閱圖五A、圖五B以及圖五c。圖五A續·示圖 二中變壓器34的外觀視圖。圖五b緣示圖五a中變壓器34 中磁芯組合344之分解視圖。圖五c繪示圖五a中繞線管 結構340與次繞線管342之分解視圖。於此實施例中，變壓 器34包含繞線管結構340、兩個次繞線管342以及磁芯組合 M368162 344。 請一併參閱圖六，圖六繪示圖五A中繞線管結構34〇之 外觀視圖及局部透視圖。如圖六所示，繞線管結構340包含 一主繞線管3400以及兩個次繞線管容置構件34〇2。於實 際應用中，根據本創作之繞線管結構340中之主繞線管 3400及該兩個次繞線管容置構件34〇2可一體成型。 主繞線管3400之外表面上具有繞線槽34〇〇4以及用來 分隔繞線槽34004之隔板34008，該繞線槽34004其上可 纏繞低壓侧繞線346。此外，繞線管結構340上並設有導 電端子34006，繞線槽34004上之低壓侧繞線346在纏繞 後可搞接至導電端子34006。並且，導電端子34006可進 一步電性連接至方波切換器320，藉此，低壓侧繞線346可 與波型產生器32形成搞接關係。另外，主繞線管3400其内 具有一通道34000且主繞線管3400本身界定分別位於通道 34000之兩個相對開口處之兩個端部34002。又，此通道 34000具有一軸向X1。 兩個次繞線管容置構件3402分別自主繞線管3400之 5亥兩個端部34002朝通道34000之轴向XI向外延伸。其 中’每一個次繞線管容置構件3402包含一遮蔽殼體以及一 谷置入口 34030，且此遮蔽殼體由上頂板34〇22、下頂板 34026、底板 34028、侧板 34020、前板 34024 及後板 34029 所構成。 如圖六所示，側板34020從主繞線管3400之端部 34002向垂直通道軸向X1之平面向外延伸，尤其往背對於 繞線管結構340上之導電端子34006的方向延伸出去。部 M368162 份的側板34020上端與上頂板34022相連，上頂板34022 的前端與前板34024的上端相連，而下頂板34026與前板 34024的下端與另一部份的側板34020上端相連。後板 34029與上頂板34022、側板34020及底板34028相連。 此外，於遮蔽殼體中，下頂板34〇26與部份的底板 34028構成朝垂直通道軸向XI之另一軸向X2向外延伸之 一對平行板(34026、34028)，其中此對平行板之間具有一 · 槽口（slot) 34032。於一較佳具體實施例中，下頂板34〇26 - 之上表面上具有至少一個突出部34〇26〇，並且該至少一個 突出部340260橫跨於軸向χ2上。 另外，如圖六所示，此遮蔽殼體的構造致使其内具有 一谷置空間。此谷置空間係藉由遮蔽殼體之上述該等板材 與主繞線管3400之外表面（包含繞線槽34004與隔板34008) 隔離。又，遮蔽殼體的侧板34〇2〇具有穿透的孔洞以與主 繞線管3400其内之通道34〇〇〇連通。此容置空間並具有一 容置入口 34030,位於遮蔽殼體的另一侧並與遮蔽殼體的 側板34020相對。再者，從通道34〇〇〇之軸向χι面向遮 蔽殼體來看’每一個次繞線管容置構件34〇2之剖視圖大致- 上呈現一 P字形。於一較佳具體實施例中，容置入口 34〇3〇 . 面向通道34000之軸向χι。 在兩個;人繞線管342中，每一個次繞線管342之外表 面上具有複數個繞線槽3426及用來分隔繞線槽3426之複 數個隔板3428，且該複數個繞線槽3426其上可纏繞高壓 側繞線(未顯示於圖中）。每一次繞線管342其内具有一通 道3420。此外，每一次繞線管342具有一延伸部3422，且該 10 M368162 延伸部3422之末端設有一導電端子3424。繞線槽3426上之 高壓側繞線在纏繞後可耦接至導電端子3424。導電端子 3424可進一步與交流輸出級36電性連接。藉此，每一次繞 線管342之高壓側繞線可分別與交流輸出級36形成電性連接。 々請參閱圖五c。此兩個次繞線管342分別從兩個次繞 ， 線管容置構件3402個別的容置入口 34030設置於該兩個容 .置，間中，致使每一次繞線管342上之高壓侧繞線與主繞 線笞3400上之低壓側繞線346藉由遮蔽殼體互相隔離，如 • 圖五C所示。又，次繞線管342之延伸部3422亦設置於容 置空間中，而延伸部3422末端之導電端子3424從該對平行 板間之槽口 34032伸出於遮蔽殼體之外。 若已知變壓器的操作條件下(例如額定的電壓值），藉 =適當地設計遮蔽殼體之尺寸，可確保次繞線管342上之 咼壓侧繞線與主繞線管3 4 〇 〇上之低壓抓繞線346間之沿面 距離符合安全規範。另外，於一較佳具體實施例中，主繞 線管3400及該兩個次繞線管容置構件34〇2可以由一匸耵 φ gr〇^pI(耐壓一 600伏特)之高絕緣材料所製成。要特別說明 . 的疋’此種局絕緣材料可進-步減少變壓器在習知的操作 條件下所需的沿面距離，進一步使變壓器的尺寸變小 繞空間增大。 請參閱圖五B。於此實施例中，變壓器之磁胁合地 包3 I型磁芯3442以及- c型磁芯3443，於此實施例中， 、、心、、且δ 344雖以c型磁芯與I型磁芯的、组合為例，但本創作 並不以此為限’例如於另一具體實施例中，磁芯組合344亦可 為U里磁0與U型磁芯的磁;^組合。丨型磁芯3442用以穿過 11 M368162 主繞線管3400内之通道34000與兩個次繞線管342内之個 別的通道3420,而C型磁芯3443設置於突出部340260上， 以使C型磁芯3443能夠準確定位至j型磁芯3442，以確保磁 芯組合344之電感量符合預設規格。 於一較佳具體實施例中，為了避免c型磁芯3443與主 繞線官3400上之低壓側繞線346互相作用而發生電弧現 象’ C型磁芯3443係包覆或套設一高絕緣材料以使c型磁芯 34=與主繞線管34〇〇上之低壓侧繞線346間之沿面距離符 合安全規範。如圖五B所示’ C型磁芯期係局部地纏繞有 二絕緣膠帶3444。於另-實施例中，c型磁怒期亦可套 ^具絕緣效权麟齡。其+，、姆料3444錄持構件 較佳以CTI group J (耐壓_伏特）之高絕緣材料所構成。 請參閱圖四。其中交流輸出級36係與變壓器34之錢侧 繞線電性連接，並肋產生四組交流電源輸出以推動四組燈管 38。其中父流輸出、級36可進一步包含譜振電路，譜振電 路360肋對絲—次齡管之高細繞線產生諧振弦波信 號，作為推動燈管38之交流電源輸出。 口本創作的燈管驅動系統採用具有上述隔離結構的變壓 器’可在較小的設置空㈣及較低的設置成本下達到安全 規範的標準’並可提供燈管败的f祕給。藉此，本創 t燈管驅㈣統可歧祕各麵示裝置上，且特別是 薄垔化或可攜式的顯示裝置。 中二七繪示根據本創作之第二具體⑽ 祕3,之功能方塊圖。如圖七所示，與先前第-具體實施例之最大不同之處在於，第二具體實施例中㈣ M368162 管驅動系統3’進-步包含細回授模組π。制回授模組37 耦接於交流輸出級36與波型產生器32之間，偵測回授模組 37根據交流電源輸出用以回授控制輸入波型信號。 '' 於此實施例中，偵測回授模組37包含偵測電路37〇、控 制電路372以及回授變壓器374。偵測電路37〇與交流輸出^ 、 36耦接，用以偵測交流電源輸出之電源輸出特性並產生偵測 ， 俏號。控制電路372與偵測電路J70耦接，控制電路372根據 偵測信號產生回授波型信號，回授波型信號透過回授變^器 • 374傳送至波型產生器32，進而回授控制輸入波型信號。 需特別說明的是，此處之回授變壓器374係用於隔離屬於 人側的彳貞測回授模組37以及屬於一次侧的波型產生32， 避免高壓二次侧的回授波型信號直接與波型產生器32搭接。 也就是說，於此實施例中，燈管驅動系統3,利用變壓器34以 對應燈管所需的驅動電源，而另一方面回授變壓器374係為燈 管驅動系統3’之回授控制功能而設，與先前技術中採用兩個& 壓器之結構以對應產生燈管之驅動電源輸出即並不相同。 鲁— 本創作的燈管驅動系統採用具有隔離結構的變壓器， • 可在較小的設置空間以及較低的設置成本下達到安全規範 的標準，其可提供燈管穩定的電源供給並具有回授控制的 功能。因此，本創作之燈管驅動系統可廣泛用於各種顯示 裝置上，且特別是薄型化或可攜式的顯示裝置。 藉由以上較佳具體實施例之詳述’係希望能更加清楚 描述本創作之特徵與精神’而並非以上述所揭露的較佳具 體實施例來對本創作之範疇加以限制。相反地，其目的& 希望能涵菱各種改變及具相等性的安排於本創作所欲申請 13 M368162 之專利範圍的範疇内。因此，本創作所申請之專利範圍的 範疇應該根據上述的說明作最寬廣的解釋，以致使其涵蓋 所有可能的改變以及具相等性的安排。M368162 V. New description: [New technical field] This creation relates to a lamp driving system, and in particular to a lamp driving system with isolation. [Prior Art] In recent years, with the development of optoelectronic technology, digital displays have become more popular. In addition, LCD panels are the mainstream digital display media, which are widely used in televisions, mobile phones, touch displays, digital cameras, and various information appliances. In practical applications, liquid crystal panels require a stable lamp drive system to provide a south quality light source. Referring to FIG. 1, FIG. 1 is a schematic diagram showing a lamp driving system 1 in the prior art. In this embodiment, the lamp driving system 1 includes a DC power supply 10, a mode generator 12, and a transformer 14, and the lamp driving system 1 is used to sway the lamp 16. In the conventional lamp driving system 1, the transformer 14 is for boosting the power signal input from the primary side (the DC power supply 10 and the mode generator 12) to be supplied to the lamp 16 of the secondary side. In the above voltage conversion process, the design of the transformer 14 must comply with safety regulations for the safety of the user. For example, in practical applications, when the primary side is 20~30V and needs to be boosted to 400V on the secondary side, a 12mm safety distance between the primary and secondary sides is required in the conventional transformer structure (as shown in Figure 1). ). If each group of transformers occupies a distance of 12 mm, the installation area of the multi-lamp tube driving system will be considerable, which is in conflict with the light weight and thinning target pursued by digital displays. Please refer to FIG. 2 'FIG. 2 continuation' to show a schematic diagram of another lamp driving system M368162 2 in the prior art. In this embodiment, the lamp drive system 2 includes a DC power supply 20, a mode generator 22, an isolation transformer 24, and a drive transformer 26, which are disclosed in the Republic of China Patent No. M314404. As shown in Fig. 2, the lamp driving system 2 utilizes a two-stage transformer (isolated transformer 24 and driving transformer 26) to be connected in series to front and rear to process the input power signal and to drive the lamp 28. Thereby the safety distance required for each transformer (isolation transformer 24 and drive transformer 26) can be shortened. However, in the lamp driving system 2, a total of two sets of transformers can be utilized to achieve the safety specification requirements and an additional transformer will increase the manufacturing cost. In order to solve the above problems, the present invention proposes a lamp driving system 'which includes a transformer having an isolated structure to solve the above problem. [New content] One of the scope of this creation is to provide a lamp driving system that includes a DC power supply, a wave generator, a transformer, and an AC output stage. According to a specific embodiment of the present invention, the waveform generator is electrically connected to the DC power supply and generates an input waveform signal. The transformer includes a main bobbin, a core assembly, two secondary bobbins, and two secondary bobbins. The main bobbin has a first passage therein and the main winding s itself is located at two opposite ends of the first passage of the first passage = low pressure weaving _ around the domain conduit, and the _ _ Pori generator. The two secondary bobbin accommodating members respectively have two of the independent bobbins 2 = extend outward toward the axial direction of the first venting. Wherein, each of the windings s each component comprises a shielding shell and a receiving population. The housing has an accommodation space in which the M368162 is isolated from the outer surface of the main bobbin, and the accommodation space is in communication with the first passage in the main bobbin. The outer shape of the shielding case is configured to accommodate the inlet. Each of the two secondary bobbins has a second passage therein and a high-voltage side winding is wound thereon. In addition, the two secondary bobbins are respectively disposed in the two accommodating spaces from the respective accommodating inlets of the two secondary bobbin accommodating members, so that the high-voltage side winding and the main bobbin on each bobbin are respectively The low voltage side winding is isolated. The core assembly is arranged to partially pass through the first passage in the main bobbin and the individual second passage in the two secondary bobbins. In practical applications, the main bobbin and the two secondary bobbin accommodating members in the transformer can be integrally formed. Additionally, in a preferred embodiment, the primary bobbin and the two secondary bobbin receiving members can be made of a high insulating material that is at least 6 volts high. ° The AC output stage of the lamp drive system can be connected to the secret ship line of the transformer. The AC rim uses at least one AC power output to push at least one of the lamps. ;| The transformer used in the lamp driving system of this creation is ϊ main bobbin isolation. Therefore, the distance between the shielding shell and the pressure side winding (primary side) is in compliance with safety regulations. Since the 壳体 之 纽 壳体 has provided the appropriate creeping distance, ί and its high insulation materials can reduce the variation _ in the conventional: size. M368162 Compared with the prior art, the lamp driving system of the present invention adopts the upper setting ===·: a smaller setting space __ supply. Thereby, it is possible to provide a stable power supply for the lamp, and in particular to be thin or portable. The advantages and spirit of this creation can be learned by riding the steps. (4) Comparison and comparison [Embodiment] See Figure 3 for clarity. FIG. 3 is a functional block diagram of the lamp drive system 3 according to the present invention. As shown in FIG. 2, the lamp driving system 3 includes a DC power supply %, a wave, a generator 32, a transformer 34, and an AC output stage 36. In this embodiment, the lamp driving system 3 is used to drive four sets of lamps, but the creation is not limited to four sets of lamps. In practical applications, the total number of lamps corresponding to the lamp driving system 3 can be designed according to actual application requirements. For example, a plurality of transformers are arranged in the lamp driving system 3 to correspond to more lamps. The lamp tubes 38 can be Cold Cathode Fluorescent Lamps (CCFLs), respectively. In this embodiment, the mode generator 32 is electrically coupled to the DC power supply 3 and produces an input waveform signal. Transformer 34 transforms the input waveform signal and transmits it to AC output stage 36. Finally, the AC output stage 36, which is electrically coupled to the transformer 34, produces four sets of AC power outputs to drive the four sets of lamps 38, respectively. Please refer to Figure 4 together. Figure 4 shows the schematic of the lamp driving system 3 in Figure 3. In this embodiment, the DC power supply 3 〇 M368162 of the lamp drive system 3 includes a parent/DC conversion | § 300, a power factor correction (PFC) circuit 302, and a DC rectifier 304. The power factor correction circuit 302 is connected to the AC/DC converter 300. The DC rectifier 304 is coupled to the power factor correction circuit 302. As shown in Fig. 4, the AC/DC converter 300 is further coupled to an external mains supply 40, and the AC/DC converter 300 converts the mains supply 4 to a DC supply. The power factor correction circuit 302 is used to adjust the power factor of the DC power input. The DC power input can also be transferred to the mode generator 32 via the rectification process of the DC rectifier 304. Finally, the DC power input generated by the DC power supply 30 can drive the mode generator 32 to generate an input waveform signal. In practical applications, the waveform generator 32 may include a full bridge conversion circuit, a half bridge conversion circuit, or a push-pull conversion circuit, but is not limited thereto. In this embodiment, the mode generator 32 can include a square wave switch 320 formed by a conversion circuit architecture (shown in Figure 4). That is to say, under the architecture of the waveform generator 32 of the present embodiment, the square wave switcher 320 is driven by the DC power supply 3〇 to generate a set of input square wave signals, and the set of input square wave signals is the original creation. The input waveform signal generated by the medium wave generator 32. Further, the mode generator 32 is coupled to the low side winding in the transformer 34, and the construction of the transformer 34 of the present invention is as follows. See Figure 5A, Figure 5B, and Figure 5c together. Figure 5A continues to show the appearance of the transformer 34 in the second view. Figure 5b shows an exploded view of the core assembly 344 in the transformer 34 of Figure 5a. Figure 5c is an exploded view of the bobbin structure 340 and the secondary bobbin 342 of Figure 5a. In this embodiment, transformer 34 includes a bobbin structure 340, two secondary bobbins 342, and a core assembly M368162 344. Please refer to FIG. 6 together. FIG. 6 is a perspective view and a partial perspective view of the bobbin structure 34A in FIG. As shown in Fig. 6, the bobbin structure 340 includes a main bobbin 3400 and two secondary bobbin receiving members 34A2. In practical applications, the main bobbin 3400 and the two secondary bobbin accommodating members 34 〇 2 in the bobbin structure 340 according to the present invention can be integrally formed. The outer bobbin 3400 has a winding groove 34〇〇4 on its outer surface and a partition 34008 for separating the winding groove 34004, on which the low-pressure side winding 346 can be wound. In addition, the bobbin structure 340 is provided with a conductive terminal 34006, and the low-voltage side winding 346 on the winding groove 34004 can be connected to the conductive terminal 34006 after being wound. Moreover, the conductive terminal 34006 can be further electrically connected to the square wave switch 320, whereby the low side winding 346 can form a mating relationship with the mode generator 32. In addition, the main bobbin 3400 has a passage 34000 therein and the main bobbin 3400 itself defines two end portions 34002 located at two opposite openings of the passage 34000. Again, this channel 34000 has an axial X1. The two secondary bobbin receiving members 3402 extend outwardly from the axial ends XI of the channels 34000, respectively, to the respective ends 34002 of the independent bobbins 3400. Wherein each of the secondary bobbin accommodating members 3402 includes a shielding housing and a valley inlet 34030, and the shielding housing is composed of an upper top plate 34〇22, a lower top plate 34026, a bottom plate 34082, a side plate 34020, and a front plate 34024. And the rear plate 34029 is composed. As shown in Figure 6, the side plates 34020 extend outwardly from the end 34002 of the main bobbin 3400 to the plane of the vertical channel axis X1, particularly extending away from the direction of the conductive terminals 34006 on the bobbin structure 340. The upper end of the side plate 34020 of the M368162 portion is connected to the upper top plate 34022, the front end of the upper top plate 34022 is connected to the upper end of the front plate 34024, and the lower end of the lower top plate 34026 and the front plate 34024 is connected to the upper end of the other partial side plate 34020. The rear plate 34029 is connected to the upper top plate 34022, the side plate 34020, and the bottom plate 34082. In addition, in the shield housing, the lower top plate 34A and the partial bottom plate 34024 form a pair of parallel plates (34026, 34428) extending outwardly from the other axial direction X2 of the vertical channel axis XI, wherein the pair is parallel There is a slot 34032 between the plates. In a preferred embodiment, the lower top plate 34 〇 26 - has at least one projection 34 〇 26 之上 on the upper surface, and the at least one projection 340 260 spans the axial χ 2 . Further, as shown in Fig. 6, the shield housing is constructed such that it has a valley space therein. The valley space is isolated from the outer surface of the main bobbin 3400 (including the winding groove 34004 and the partition 34008) by the above-described sheets of the shield housing. Further, the side plates 34 〇 2 遮蔽 of the shielding case have penetrating holes to communicate with the passages 34 in the main bobbin 3400. The accommodating space has an receiving inlet 34030 on the other side of the shielding case and opposite to the side plate 34020 of the shielding case. Further, the cross-sectional view of each of the secondary bobbin accommodating members 34 〇 2 is substantially a P-shaped view from the axial direction of the passage 34 面向 toward the shielding case. In a preferred embodiment, the inlet 34〇3〇 is accommodated. The axial direction of the channel 34000 is χι. In the two; human bobbin 342, each of the secondary bobbins 342 has a plurality of winding grooves 3426 on the outer surface thereof and a plurality of partitions 3428 for separating the winding grooves 3426, and the plurality of windings The groove 3426 can be wound with a high pressure side winding (not shown). Each bobbin 342 has a passage 3420 therein. In addition, each bobbin 342 has an extension portion 3422, and a terminal of the 10 M368162 extension portion 3422 is provided with a conductive terminal 3424. The high voltage side windings on the winding groove 3426 can be coupled to the conductive terminals 3424 after being wound. The conductive terminal 3424 can be further electrically connected to the AC output stage 36. Thereby, the high-voltage side windings of each of the bobbins 342 can be electrically connected to the AC output stage 36, respectively. Please refer to Figure 5c. The two secondary bobbins 342 are respectively wound from the two secondary windings, and the individual receiving inlets 34030 of the conduit receiving members 3402 are disposed in the two receptacles, so that the high voltage side of each of the bobbins 342 is caused. The low-voltage side windings 346 on the winding and main windings 4003400 are isolated from each other by the shielding case, as shown in Fig. 5C. Further, the extension portion 3422 of the secondary bobbin 342 is also disposed in the accommodating space, and the conductive terminal 3424 at the end of the extending portion 3422 protrudes from the notch 34032 between the pair of parallel plates outside the shielding case. If the operating conditions of the transformer are known (for example, the rated voltage value), the size of the shielding housing is appropriately designed to ensure the rolling side winding of the secondary bobbin 342 and the main bobbin 3 4 〇〇 The distance between the upper low-voltage winding wires 346 is in compliance with safety regulations. In addition, in a preferred embodiment, the main bobbin 3400 and the two secondary bobbin accommodating members 34 〇 2 may be insulated by a high φ φ gr 〇 p pI (withstand voltage of 600 volts). Made of materials. It is to be noted that this type of insulating material can further reduce the creepage distance required by the transformer under the conventional operating conditions, further reducing the size of the transformer and increasing the space. Please refer to Figure 5B. In this embodiment, the magnetic core of the transformer is combined with a 3 I-type magnetic core 3442 and a - c-type magnetic core 3443. In this embodiment, the core, and the δ 344 are c-type magnetic cores and type I. The combination of the magnetic core is taken as an example, but the present invention is not limited thereto. For example, in another specific embodiment, the magnetic core assembly 344 may also be a magnetic combination of a U-magnetic 0 and a U-shaped magnetic core. The 磁-type magnetic core 3442 is used to pass through the channel 34000 in the 11 M368162 main bobbin 3400 and the individual channels 3420 in the two secondary bobbins 342, and the C-type magnetic core 3443 is disposed on the protrusion 340260, so that The C-type magnetic core 3443 can be accurately positioned to the j-type magnetic core 3442 to ensure that the inductance of the magnetic core assembly 344 conforms to a preset specification. In a preferred embodiment, the arc phenomenon occurs in order to prevent the c-type magnetic core 3443 from interacting with the low-voltage side winding 346 on the main winding 3400. The C-type magnetic core 3443 is coated or sheathed with a high insulation. The material is such that the creeping distance between the c-type core 34 = and the low side winding 346 on the main bobbin 34 is in compliance with safety regulations. As shown in Fig. 5B, the 'C-type core period is partially wound with two insulating tapes 3444. In another embodiment, the c-type magnetic anger period can also be set to have an insulation effect. The +, 3, 3 member holding member is preferably made of a high insulating material of CTI group J (pressure-resistant volt). Please refer to Figure 4. The AC output stage 36 is electrically connected to the money side winding of the transformer 34, and the ribs generate four sets of AC power output to drive the four sets of lamps 38. The parent stream output, stage 36 may further comprise a spectral oscillator circuit, and the spectral coil circuit 360 generates a resonant sine wave signal for the high-fine winding of the wire-secondary tube as the AC power output for the lamp 38. The lamp-driven system of the present invention adopts a transformer having the above-mentioned isolation structure, which can meet the safety standard under a small installation space (four) and a low installation cost, and can provide a fault of the lamp. Thereby, the T-light tube drive (4) can be used on various display devices, and particularly thin or portable display devices. The middle two seven shows the functional block diagram according to the second specific (10) secret 3 of this creation. As shown in Fig. 7, the greatest difference from the previous embodiment is that in the second embodiment, the M368162 tube drive system 3' further includes a fine feedback module π. The feedback module 37 is coupled between the AC output stage 36 and the waveform generator 32. The detection feedback module 37 is used to feedback the control input waveform signal according to the AC power output. In this embodiment, the detection feedback module 37 includes a detection circuit 37, a control circuit 372, and a feedback transformer 374. The detecting circuit 37 is coupled to the AC output ^, 36 for detecting the power output characteristic of the AC power output and generating the detection and the number. The control circuit 372 is coupled to the detection circuit J70. The control circuit 372 generates a feedback waveform signal according to the detection signal, and the feedback waveform signal is transmitted to the waveform generator 32 through the feedback converter 374, thereby feedback control. Input the waveform signal. It should be specially noted that the feedback transformer 374 here is used to isolate the detection and feedback module 37 belonging to the human side and the waveform generation 32 belonging to the primary side, and avoid the feedback waveform signal of the secondary side of the high voltage. Directly overlaps the mode generator 32. That is to say, in this embodiment, the lamp driving system 3 uses the transformer 34 to correspond to the driving power required by the lamp, and on the other hand, the transformer 374 is the feedback control function of the lamp driving system 3'. Moreover, it is not the same as the prior art that the structure of the two & pressers is used to correspondingly generate the driving power output of the lamp. Lu – The lamp drive system of this creation uses a transformer with an isolated structure. • It can meet the safety standard in a small installation space and a low installation cost. It can provide a stable power supply to the lamp and has feedback. Controlled features. Therefore, the lamp driving system of the present invention can be widely used in various display devices, and particularly a thinned or portable display device. The scope of the present invention is not limited by the specific embodiments disclosed above, which are intended to provide a more detailed description of the present invention. On the contrary, its purpose & hoping to make various changes and equivalence arrangements within the scope of the patent application of 13 M368162. Therefore, the scope of the patent scope applied for in this creation should be interpreted broadly based on the above description so that it covers all possible changes and equivalence arrangements.
14 M368162 【圖式簡單說明】 圖一係繪示先前技術中一種燈管驅動系統的示意圖。 圖二係繪示先前技術中另一種燈管驅動系統的示意圖。 圖三繪示根據本創作之第一具體實施例中燈管驅動系統 之功能方塊圖。 圖四緣示圖三中燈管驅動系統之示意圖。 圖五A纟會不圖三中變壓器的外觀視圖。 圖五B繪不圖五A中變壓器中磁芯組合之分解視圖。 圖五C繪示圖五A中繞線管結構與次繞線管之分解視圖。 圖六繪示圖五A中繞線管結構之外觀視圖及局部透視圖。 圖七繪示根據本創作之第二具體實施例中燈管驅動系統 之功能方塊圖。 【主要元件符號說明】14 M368162 [Simplified Schematic] FIG. 1 is a schematic diagram showing a lamp driving system in the prior art. 2 is a schematic diagram showing another lamp driving system in the prior art. Figure 3 is a functional block diagram of a lamp driving system in accordance with a first embodiment of the present invention. Figure 4 is a schematic view of the lamp driving system in Figure 3. Figure 5A shows the appearance of the transformer in Figure 3. Figure 5B depicts an exploded view of the core assembly in the transformer of Figure 5A. Figure 5C is an exploded view of the bobbin structure and the secondary bobbin of Figure 5A. Figure 6 is a perspective view and a partial perspective view of the bobbin structure of Figure 5A. Figure 7 is a functional block diagram of a lamp driving system in accordance with a second embodiment of the present invention. [Main component symbol description]
1、2、3、3丨：燈管驅動系統 10、20、30 :直流電源供應器 300 :交流/直流轉換器 304 :直流整流器 320 :方波切換器 24 :隔離變壓器 16、28、38 :燈管 302 :功率因素校正電路 12、22、32 :波型產生器 14、34 :變壓器 26 :驅動變壓器 40 :市電電源 15 M368162 36 :交流輸出級 37 :偵測回授模組 372 :控制電路 340 :繞線管結構 344 :磁芯組合 3400 :主繞線管 34000 :通道 34004 :繞線槽 34008 :隔板 3402 :次繞線管容置構件 34020 :側板 34024 :前板 34028 :底板 34032 :槽口 3442 : I型磁芯 3420 :通道 3424 :導電端子 3428 :隔板 X卜X2 :轴向 360 :諧振電路 370 :偵測電路 374 :回授變壓器 342 :次繞線管 346 :低壓側繞線 34002 :端部 34006 :導電端子 340260 :突出部 34022 :上頂板 34026 :下頂板 34030 :容置入口 34029 :後板 3443 : C型磁芯 3422 :延伸部 3426 :繞線槽 3444 :膠帶1, 2, 3, 3丨: Lamp driving system 10, 20, 30: DC power supply 300: AC/DC converter 304: DC rectifier 320: Square wave switcher 24: Isolation transformer 16, 28, 38: Lamp 302: Power factor correction circuit 12, 22, 32: Wave generator 14, 34: Transformer 26: Drive transformer 40: Mains power supply 15 M368162 36: AC output stage 37: Detection feedback module 372: Control circuit 340: bobbin structure 344: core assembly 3400: main bobbin 34000: passage 34004: winding groove 34008: partition 3402: secondary bobbin accommodation member 34020: side plate 34024: front plate 34428: bottom plate 34032: Notch 3442: I-type magnetic core 3420: channel 3424: conductive terminal 3428: spacer X Bu X2: axial 360: resonant circuit 370: detection circuit 374: feedback transformer 342: secondary bobbin 346: low-voltage side winding Line 34002: End 34006: Conductive terminal 340260: Projection 34022: Upper top plate 34026: Lower top plate 34030: accommodating inlet 34029: Rear plate 3443: C-type magnetic core 3422: Extension 3426: Winding groove 3444: Tape