201101668 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種高功率輸出之廢電式電源轉換器，特別是關於 一種利用壓電元件提升功率輸出之電源轉換器。 【先前技術】 目前，越來越多的可攜式設備開始提供彩色螢幕、立體音訊、和 連結等先進功能，例如GPRS、無線網路和藍芽、以及視訊和相機拍 攝。相較於臃腫笨重的可攜式設備，消費者希望產品設計不僅輕薄短 小’操作方便’還有很長的電池使用壽命。消費者的喜好為電路設計 〇 工程師帶來了兩難的局面：他們必須提供更多電源給系蟀並產生更多 組電壓’但在這同時，可攜式產品可供電源供應器使用的空間和電池 容量卻日益減少。 為了滿足這些技術要求，設計人員就必須採用電源效率更高，然 而一般電源轉換器之電路中，係使用一般電容器串聯或並聯於電感做 譜振效應’然而’一般電容的電容量低，若輸入電壓訊號過大，會造 成很大的漏電流，功率輸出之效率並不高，而電容器的财壓性不足， 失效模式會使電容器爆炸，容易導致失火的危險。此外，一般電源供 應器會應用線圈型升壓變壓器來提高輸出功率，惟，若要提供大功率 G使用’則線_變壓ϋ本身的容量就要非常巨大，除了會產生磁心的 效率損耗與成本增加外，重量與大體積也與輕薄短小的要求相違背。 有鑑於此，本發明遂提出一種高功率輸出之壓電式電源轉換器， 以改善存在於先前技術中之該些缺失。 【發明内容】 本發明的主要目的在於提供一種高功率輸出之壓電式電源轉換 器’利用結構簡單的壓電元件用以提供倍數增加的輸出功率，進而達 到大功率輸出之功效。 本發明之另-目的係提供—種高轉触之魏式賴轉換器， 3 201101668 利用結構簡單的壓電元件取代一般電容使用，壓電元件的漏電流小、 耐廢性咼、耐高溫、沒有過熱起火的危險，其可靠性高，進而可解決 傳統電源轉換器中的電容器所造成耐壓低及過熱起火的危險，其次， 壓電元件體積小，封裝厚度薄，極具有市場競爭優勢。 本發明之再一目的係提供一種高功率輸出之壓電式電源轉換器， 利用壓電元件提供倍數增加的輸出功率，可省略習知技術使用線圈型 升壓變壓器做大功率輸出的成本，達到降低製造成本與產品設計輕薄 短小的功效。 為達到上述目的，本發明提供一種高功率輸出之壓電式電源轉換 器’應用於交流轉直流之電源轉換器，其包含至少一第一壓電元件、 第二壓電元件與第三壓電元件、整流電路、功率因數校正電路、脈波 寬度調變器、功率開關電路、濾波整流電路及回授電路。第三壓電元 件位於整流電路與功率因數校正電路之間，功率開關電路位於功率因 數校正電路之輸出端’脈波寬度調變器連接於功率開關電路，第一壓 電元件位於功率開關電路與濾波整流電路之間，第二壓電元件位於濾 波整流電路之輸出端。其中，整流電路係接收一交流電訊號，並將其 整流後輸出一直流電訊號予第三壓電元件，第三壓電元件係接收直流 電訊號並提供予功率因數校正電路，功率因數校正電路係接收第三壓 電元件輸出之直流電訊號，並調整其一功率因數以產生一高壓直流輸 出電壓予功率開關電路，功率開關電路係接收脈波寬度調變器輸出之 一脈波寬度調變訊號以進行功率開關啟/閉之操作，並將功率因數校正 電路輸出之面壓直流輸出電壓轉換為一交流脈波訊號予第一壓電元 件，第一壓電元件接收交流脈波訊號，經由壓電效應後輸出一高交流 電屋’遽波整流電路係將mu件輸出之高交流電壓整流為一直 流電壓，第二壓電元件係接收濾波整流電路輸出之直流電壓並提供至 外部負載運作’回授電路係依據外部負載之一電力狀態而輸出一回授 訊號予脈波寬度調變器以進行調整脈波寬度調變訊號。 此外，本發明提供另一種高功率輪出之壓電式電源轉換器，應用 201101668 於交流轉交流之電源轉換器，由於係直接輪出高交流電壓至外部負載 運作，故不需要濾波整流電路來將交流電壓轉換為直流電壓之動作。 電源轉換器包含至少一第一壓電元件，其係接收一交流脈波訊號，將 其轉換為一高交流電壓並輪出至一外部負載運作。 底下藉由具體實施例配合所附的圖式詳加說明，當更容易瞭解本 發明之目的、技術内容、特點及其所達成之功效。 【實施方式】 請參閱第一圖’為本發明之高功率輸出之壓電式電源轉換器之電 路架構圖《電源轉換器10包含至少一第一壓電元件101、一濾波整流 〇 電路1〇2及至少一第二壓電元件103，遽波整流電路102之輸入端連 接於第一壓電元件101 ’而濾波整流電路1〇2之輸出端連接於第二壓 電元件103。其中，第一壓電元件1〇1係接收一交流脈波訊號，經由 壓電效應後輸出一高交流電壓，濾波整流電路1〇2係將第一壓電元件 1〇1輸出之高交流電壓整流為一直流電壓，由第二壓電元件1〇3接收 濾波整流電路102輸出之直流電壓，並提供直流電壓至外部負載運作。 請參閱第二圖，為本發明高功率輸出之壓電式電源轉換器之第一 實施例示意圖。應用於交流轉直流之電源轉換器，其包含整流電路 11、功率因數校正電路12、脈波寬度調變器13、功率開關電路14、 〇濾波整流電路15及回授電路16、至少一第一壓電元件、至少一第二 壓電7L件與至少一第三壓電元件。第三壓電元件係為一第二壓電電容 19 ’其用來取代一般的電容器’第二壓電電容19位於整流電路仂與 功率因數校正電路12之間，功率開關電路14位於功率因數校正電路 12之輪出端，脈波寬度調變器13連接於功率開關電路14，第一壓電 兀件係為—壓電震盪器18，其取代一般半橋諧振電路中所使用的電容 器’壓電震盪器18位於功率開關電路14與濾波整流電路15之間， 第一壓電元件係為一第一壓電電容彳7，其用來取代一般的電容器。第 一壓電電容17位於濾波紐電路15之輸$端。其巾，整流電路n 5 201101668 係接收一交流電訊號，並將其整流後輸出一直流電訊號予第二壓電電 容19進行充電，其中，整流電路11可為莆特基障壁二極體(sbd)、 快速回復二極趙(FRD)、齊納二極趙(ZD)等橋式整流電路。第二麽電電 容19係接收直流電訊號並提供予功率因數校正電路12，功率因數校 正電路係接收第二壓電電容19輸出之直流電訊號，並調整其一功率因 數以產生一高壓直流輸出電壓予功率開關電路14 ,其中，功率開關電 路14係為一半橋式功率開關電路。功率開關電路14係接收脈波寬度 調變器13輪出之一脈波寬度調變訊號以進行功率開關啟y閉之操作， 並將功率因數校正電路輸出之高壓直流輸出電壓轉換為方形波之一交 流脈波訊號予壓電震盪器18。當操作壓電震盪器18於共振頻率時， 壓電震盪器18用以儲存電能且具有壓電特性，可以調整功率因素再將 功率輸出，通電變形時會產生逆壓電效應，變形後會產生正壓電效應， 而其正、逆壓電效應的轉換將會生成正電荷，使電壓放大，故可將方 形波的交流脈波訊號轉換為正弦波的高交流電壓後輸出予濾波整流電 路15，其轉換過程視為壓電效應。濾波整流電路15係將壓電震盪器 18輸出之尚交流電愿整流為一直流電壓後，輸出予第一壓電電容π 進行充電，再由第一壓電電容17提供直流電壓至外部負載運作。回授 電路16係依據外部負載之一電力狀態而輪出一回授訊號予脈波寬度 調變器13以進行調整脈波寬度調變訊號。 *其中，第一壓電電容17與第二壓電電容彳9具有體積小、封裝厚 度薄、耐尚溫、漏電流小而使功率輸出效率提高，以及可承受約3〇〇〇 伏特的咼壓直流電壓而具有耐壓性高等優點，進而解決一般電容器因 耐壓性低（_壓450伏特）而料發生輸人電壓過大而損毁或過熱 起火的危險等缺點。由於，紐電路彳彳整職輸丨之直流電訊號為高 麗直流電，且對第二歷電電容進行充電，因此，本發明可視需求串 聯或並聯多個第二壓電電容19 ’增加其儲能魏與耐壓性^此外，壓 =盪H 18經過壓f效應後’具有高電容量，可提供倍數增加的輸出 功率’由此可知，本發明可省略習知技術❹線圈型升紐麼器做大 201101668 功率輸出的成本，達麟低製造成本與產品設計㈣短小的功效。更 進-步而言，壓钱盪㈣财料則、、養㈣、耐高溫、 性佳、艘積小，封裝厚度薄，極具有市場競爭優勢，故屋電震盡器18 比一般諧振電路中的電容器具有更高的效能。 其中，壓電震盡器18之結構，如第三Α圖所示，係以愿電 製作-圓板形狀的基材21，倾，其形狀亦可為方形或矩形或其他幾 何形狀，再以銀膝、銅膏或媒赍製作同樣為回形的導電層22、烈於基 材21的整個或部分上表面與下表面，以構成壓電震抑化之兩極來 引導電流。 〇 接續’壓電紐器18之等效電路，如第三B ®所示，等效電路 中綠示有等效電阻R、等效電感L、以及分別表示電特性與力學特性 的等效電容Ca與cb。其中，歷電震盈器18與一般諧振電路中的電 容器不同在於：傳統魏轉換器由於輸電線的電容、電感效應及 的特性，糾致電雜電壓之間有概差存在，若電容抗大於電感抗， 則電流相位將導前於電壓相位，反之則電流相位將紐電壓相位，而 電流與電麼有相位差存在，則必定會損失一部份電力，所喪失的能量 就稱為「級電力」，㈣絲大，減電力亦愈大，功率因數就愈差， 故轉換效率差。操作簾電震盡H 18於共振頻率時，屋電震盡器仿可 〇利用等效電路中的等效電感L作為諧振電感使用，以形成一半橋諸振 電路。壓電震蘯器18用以儲存電能且具有壓電特性，可以調整功率因 素’使電流與電壓同相位，此時等效阻抗R最小，電流最大故轉換 效率最好’輸出的功率最大：此外，等效電路中的等效電容之力學特 性α係經由壓電效應所產生的，且力學特性Cb值約為電特性 的3倍電容量，將Ca值與Cb值的電容量相加，如此使壓電震逢器 18具有高電容量（Q=C*V)，故可提供倍數增加的輸出功率，進 高效率能量轉換的功效。第-壓電電容17與第二屋電電容19未操作 於共振頻率上，·，接收直流電壓時具有高的電容量且具有極性， 第-壓電電容17與第二壓電電容19之等效電路，如第三〇圖所示， 201101668 等效電路中繪示有等效電阻R、等效電阻L、及表示電特性的等效電 容Ca。 請參聞第四囷，為第一圖中之交流轉直流之濾波整流電路圖。濾 波整流電路15包含二極體D1與D2與一濾波電感L，濾波電感L 一 端連接於二極體D1舆D2，另一端連接於第一壓電電容17。其中，二 極體D1與D2係接收壓電震盪器18輸出之高交流電壓，由於二極體 D1與D2具有單向導電的特性，可以把方向和大小交變的高交流電壓 變換為直流電壓，故作為整流之用。當壓電震盪器18輸入的高交流電 壓為正半週時，則二極髏D1為順向偏壓，電流可從二極體D1流出通 過濾波電感L至第一壓電電容17進行充電，而二極髏D2為逆向偏壓， 相當於開路狀態，沒有電流流通。當壓電震盪器彳8輸入的高交流電壓 為負半週時，則二極體D1為逆向偏壓，相當於開路狀態，沒有電流 流通，而二極體D2為順向偏壓，電流可由二極體D2流出通過渡波電 感L至第一壓電電容17進行充電，再由第一壓電電容17輸出直流電 壓至外部負載運作。 參閱第五圓’為本發明之高功率輸出之壓電式電源轉換器之第二 實施例示意圖，其與第二圖不同之處在於具有二第一壓電元件，以及 功率開關電路14係為全橋式之功率開關電路，二第一壓電元件係取代 -般全橋諸振電路巾的二電容^，且位於功率關電路14與整流渡波 電路15之間，二第—壓電元件分別電震魅41與第二壓 電震盡器42。全橋式功率開關電路連接於功率因數校正電路12之輸 出端’且魏脈歧度婦H 13細之脈波寬度輕訊肋進行功率 開關啟/閉之操作，可將功率因數校正電路12輸出之高壓直流輸出電 f轉換為方敎之—絲脈波纖，並將交舰波訊齡職入第一 壓電?盡器41與第二磨電震盡器42。 笛一第一麼電震逢器41與第二壓電震盡器42於共振頻率時， 電震器41與第二壓電震妓42分別_等效電路中的等效 作為謂振電感使肖，⑽成—全橋错振電路。第―壓電震盡器 201101668 41>與第二㈣錢器42可分職生壓電效應而將交流脈波訊號轉換 為尚交流電磨予據波整流電路15，經由渡波整流電路15將高交流電 壓整流為-直流電碰，輸出予第一壓電電容17進行充電再由第一 座電電容17触直流㈣至外部貞載運作。其巾，第_㈣震盡器 41與第二麗電震逢器42經過屋電效應後，使第一簾電震逢器41與第 二麼電震盡器42分別產生高電容量以提供倍數增加的輸出功率因 此，比僅運用一壓電震盪器更能提供大功率的輸出。 接續，參閱第六圖，為本發明之高功率輸出之屋電式電源轉換器 之第三實施例示意圖。於電源轉換器中的諧振電路增設一諧振電感 L”其位於半橋式之功率開關電路14與第-座電震逢器41之間而形 成一半橋諧振電路。错振電感L1係接收功率開關電路14輸出之交流 脈波訊號，由於諧振電感[_1具有升壓與儲能功效，因此可提供第一壓 電震蘯器41更高的電壓轉換效率。當操作於請振電感u與第一壓電 震盪器41之相同共振頻率點時，内阻抗最小、電流最大，第一壓電震 盪器41產生壓電效應而將交流脈波訊號轉換為一高交流電壓，且可提 高數倍的電容量，故可提供功率轉換效率。濾波整流電路15將高交流 電壓整流為一直流電壓後，輸出予第一壓電電容17進行充電再由第 一壓電電容17輸出直流電壓至外部負載運作。 Q 此外，於第六圖中可視需求並聯或串聯多個第一壓電震盪器41， 如第七A圖與第七B圖所示。第七A圖於半橋諧振電路中並聯多個壓 電震盪器之示意圖，圖中，將多個第一壓電震盪器41並聯後，此些第 一壓電震盪器41產生壓電效應後，所產生的電容量會倍數增加，:此 使功率轉換效率達到最佳化。第七B圖於半橋諧振電路中串聯多個壓 電震盪器之示意圖，圖中，將多個第一壓電震盪器41串聯後，此些第 一壓電震盪器41產生壓電效應後，所產生的電容量比單一壓電震&器 41大’雖串聯多個第一壓電震盪器41之電容量略小於並聯多個第一 壓電震盪器41，但一個第一壓電震盪器41可承受約3000伏特的電 壓，換言之，多個串聯的第一壓電震盪器之耐壓性相對可倍數提高。 201101668 接續，參閱第八圖，為本發明之高功率輸出之壓電式電源轉換器 之第四實施例示意圊。於電源轉換器中的諧振電路增設二諧振電感U 與U，其位於全橋式之功率開關電路14與二壓電震盪器之間而形成 一全橋諧振電路，其中二壓電震盪器為第一壓電震盪器41與第二壓電 震盪器42,諧振電感|_1與U分別對應串聯於第一壓電震盪器41與第 二壓電震盪器42-諧振電感U與U係接收功率開關電路14輸出之交 流脈波訊號，由於諸振電感I·1與U具有升壓與儲能功效，因此可分別 提供第一壓電震盪器41與第二壓電震盪器42更高的電壓轉換效率。 當操作於错振電威U、L2舆第一壓電震盪器41、第二壓電震盪器 42之相同共振頻率點時，内阻抗最小、電流最大，第一壓電震盪器41、 第二壓電震盪器42分別產生壓電效應而將交流脈波訊號轉換為一高 交流電壓’且可提高數倍的電容量，除了可提高功率轉換效率外，更 可作為大功率輸出之應用。濾波整流電路15將高交流電壓整流為一直 流電壓後’輸出予第一壓電電容17進行充電，再由第一壓電電容17 輸出直流電壓至外部負載運作。藉此，操作於共振頻率時，本發明之 全橋諧振電路比半橋諧振電路能輸出更大功率之效能。此外，本發明 可視需求並聯或串聯多個第一壓電震盪器41或第二壓電震盪器42， 以增加其轉換效率。 接續’請參閱第九圖，為本發明之高功率輸出之壓電式電源轉換 器之第五實施例示意圖。電源轉換器其特徵在於：將二壓電震盪器並 排而形成一絕緣型壓電震盪器80，其用以取代一般全橋諧振電路的二 電容器°絕緣型壓電震盪器80係使用於本發明之電源轉換器中的全橋 譜振電路上，且位於全橋式之功率開關電路14與濾波整流電路15之 間。絕緣型壓電震盪器80係接收功率開關電路14輸出方形波之交流 脈波訊號’當操作於共振頻率時，絕緣型壓電震盪器80用以儲存電能 且具有屋電特性，可以調整功率因素再將功率輸出，通電變形時會產 生逆壓電效應，變形後會產生正壓電效應，而其正、逆壓電效應的轉 換將會生成正電荷，使電壓放大，故可將方形波的交流脈波訊號轉換 201101668 為正弦波的高交流電壓後輸出予濾波整流電路彳5。濾波整流電路15 依據接收的高交流電壓為正半週或負半週，而將方向和大小交變的交 流電壓變換為一直流電壓，再由第一壓電電容17輸出直流電壓至外部 負載運作。 其中，絕緣型壓電震盪器80具有漏電流小（約0〜0.2//A)，使 轉換效率提高、耐壓性高、耐高溫、絕緣性佳、體積小，封裝厚度薄 等優點’故相較於一般全橋諧振電路中的二電容器是具有更高的效 能。如第十A圖與第十B圖所示，第十a圖為絕緣型壓電震盪器之結 構剖視圖，第十B囷為絕緣型壓電震盪器之等效電路。絕緣型壓電震 ^ 盪器80包含一基材81、至少一第一上電極811、至少一第一下電極 813、至少一第二上電極812及至少一第二下電極814 »基材81係為 陶瓷材料，且具有一上表面與一下表面，第一上電極811與第二上電 極812設置於基材81之上表面，且第一上電極811與第二上電極812 之間設有一絕緣區域815。第一下電極813與第二下電極814設置於 基材81之下表面’且第一下電極813與第二下電極814之間設有絕 緣區域815。絕緣區域815會保持陶瓷材料的物理特性，而呈現絕緣 狀態〇第一下電極813與第二下電極814分別與第一上電極811與第 二上電極812對稱’且第一上電極811、第一下電極之間與第二 〇上電極812、第二下電極814之間的基材81分別通一交流脈波訊號， 並經由壓電效應後，可將交流脈波訊號轉換為一高交流電壓。 其中，絕緣型壓電震盪器80之功率轉換效率雖略低於使用二壓電 震盪器，但可簡化電路設計而達到降低製造成本與產品設計輕薄短小 的功效。此外，本發明可視需求並聯或串聯多個絕緣型壓電震盪器 80，以增加其轉換效率。如第•一 A圖於全橋諧振電路中並聯多個絕 緣型壓電震盪器之示意圖，將多個絕緣型壓電震盪器8〇並聯後，此些 絕緣型壓電㈣H 80產錢電效應後，所產生的電容量會倍數增加， 如此使功率轉換效率達到最佳化。如第十一 B圖所示，於全橋讀振電 路中串聯多個絕緣型壓電震盡器之示意圖，將多個絕緣型麼電震盡器 11 201101668 80串聯後，此些絕緣型壓電震盪器80產生壓電效應後，所產生的電 容量比單一絕緣型壓電震盪器80大，雖串聯多個絕緣型壓電震盪器 80之電容量略小於並聯多個絕緣型壓電震盪器80,但一個絕緣型壓電 震盪器80可承受約3000伏特的電壓，換言之，多個串聯的絕緣型壓 電震盪器80之对磨性相對可倍數提高。此外，使用於全橋諧振電路中 的絕緣型壓電震盪器比半橋諧振電路中的壓電震盪器能提供更大的輸 出功率。 接續，參閱第十二圖，為本發明之高功率輸出之壓電式電源轉換 器之第六實施例示意圖❶於電源轉換器中的諧振電路增設二错振電感 L1舆U，其位於全橋式之功率開關電路14與一絕緣型壓電震盪器之 間而形成一全橋諧振電路，其中，諸振電感1_1與|_2分別對應串聯於絕 緣型麼電震盪器之第一輸入端801與第二輸入端802。諧振電感Li與 U係接收功率開關電路14輸出方形波之交流脈波訊號，由於諧振電感 I·1與U具有升壓與健能功效，因此可提供絕緣型壓電震盪器更高 的電壓轉換效率》 當操作於諧振電感U、U與絕緣型壓電震盪器80之相同共振頻 率點時，内阻抗最小、電流最大，絕緣型壓電震盪器8〇產生壓電效應 而將方形波之交流脈波訊號轉換為正弦波之高交流電壓，並由絕緣型 壓電震益器80之第-輸出端8〇3與第二輸出端8〇4分別輸出高交流 電壓予遽波紐電路15。由於壓電效應後，可提高數倍的電容量，除 了可提高神轉換效料，更可作為大功率輸出之顧。藉此，操作 =共振頻料’本發明之全橋諧振料辭橋雜能輸出更大功 率之效能。此外，本發财視需求並聯或㈣乡個絕緣麵 80，以増加其轉換效率。 一由上述可得知’本發明無須使用巨大線圈型升壓變壓器只要將 木壓電巧||應麟半橋鞠電路，即可輸出高達W瓦功率的目的， ’若將二個以上之壓電震1器或絕緣型壓電震妓應用於全橋諧 路’則可推動更高的功率輸出，再者，壓電電容與壓電震盈器、 12 201101668 絕緣型壓電震盪器的體積小且封裝厚度薄，除了可減少製造成本外， 亦使電路配置方式更為簡化而達到產品設計輕薄短小的功效，極具有 市場競爭優勢。此外，壓電電容與壓電震盪器、絕緣型磨電震逢器具 有高耐壓性、絕緣性佳、漏電流小等優點，可解決一般電容器耐壓低 及過熱起火的危險，以及輸出更高功率之功效。 接續，請參閱第十三圖為本發明應用於交流轉交流之電源轉換器 之第七實施例示意圖。其特徵在於：直接輸出高交流電壓至外部負載， 故不需要濾波整流電路來將交流電壓轉換為直流電壓之動作。電源轉 換器包含整流電路11、功率因數校正電路彳2、脈波寬度調變器13、 〇 功率開關電路14及回授電路16、至少一第一壓電元件與至少一第三 壓電το件。第三壓電元件係為-第二壓電電容19，其用來取代一般的 電容器，第二壓電電容19位於整流電路11與功率因數校正電路a 之間，功奉開關電路14位於功率因數校正電路乜之輸出端脈波寬 度調變器13連接於功率_電路14，第—壓電元件係為—壓電震盤 器18，其取代一般半橋諧振電路中所使用的電容器壓電震盪器 位於功率開關電路14之輪出务其中’整流電路彳4係接收一交流電 訊號’並將其整流後輸出-直流電訊號予第二麼電電容19，第二壓電 電容19係接收直流電訊號並提供予功率因數校正電路12，功率因數 〇校正電路12係接㈣二壓電電容19輸出之直流電訊號，並調整其一 功率因數以產生-高壓直流輸出電壓予功率開關電路14，功率開關電 ，14係接收脈波寬度調變器13輸出之—脈波寬度調變訊號以進行功 啟/閉之操作，並將功率因數校正電路12輸出之高塵直流輸出 •換為方形波之-交流脈波訊號予壓電震堡器他壓電震盈器怊 於ίΓ功ί開關電路14輸出之交流脈波訊號，當操作壓電震盈器18 頻#時係糊等效電路中的等效電感L作⑽振電感使用， €路。其中，壓電震拉18用_存電能且具有麼 i可^調整轉目素騎功輪出，通電_時會產生逆麼電 ·、职會產生正應電效應，而其正、逆>if效應的轉換將會生 13 201101668 成正電荷，使電壓放大，故可將方形波的交流脈波訊號轉換為正弦波 的高交流電壓後輸出予外部負載運作。回授電路16係依據外部負載之 電力狀態而輸出一回授訊號予脈波寬度調變器，以進行調整脈波寬 度調變訊號· 其中，壓電震盪器18轉換過程視為壓電效應，磨電震盪器18經 過壓電效應後，具有高電容量，可提供倍數增加的輸出功率，故壓電 震盪器18比-般請振電路中的電容器具有更高的效能β由此可知本 發明可省略習知技術使用線圈型升麼變麼器做大功率輸出的成本達 到降低製造成本與產品設計輕薄短小的功效❶更進一步而言壓電震 盪器18具有漏電流小、耐壓性高、耐高溫、絕緣性佳、體積小封裝 厚度薄’極具有市場競爭優勢。 接續，請參閱第十四圖，其為本發明之高功率輸出之壓電式電源 轉換器之H酬示意囷，其與第十三_不同之處在於具有二第一 麼電το件，以及功相關電路係為全橋紅功率麵電路14，二第一 壓電7C件係取代-般全橋諧振電路中的二電容器，且位於全橋式之功 率開關電路14之輸出端，二第一壓電元件分別為一第一壓電震逢器 41與第二麼電震盡器42。第一愿電震蘯器41與第二屋電震盡器 接收功率腳電路14輪fU方形紅_統贿喊，經祕電效應 後，可將交流脈波訊號轉換為高交流電展予外部 當 -壓電震抑41與第二壓電震㈣仏經舰電效應後第= 與第二壓電震㈣42分別產生高電容量以提供倍數增加5 輸出功率，因此，比僅運用-壓電震1器更能提供大功率的輸出。 接續，請參閱第十五圖，其為本發明之高功率輸出之塵電式電源 之f九實施例示意圖。於電源轉換器中的譜振電路增設一譜振 之功率_電路14與第―屢電震逢器41之間 而形成-半漏振電路。諧振電感L1係接收功率_電路14輸出之 ^脈波訊號，由於一譜振電感Ll具有與儲能功效，因此可提供第 -磨電震蘯器41更高的電顯換效率，經由虔電效應後，可將功率開 .201101668 關電路14輸出之交流脈波訊號轉換為一高交流電壓予外部負載運 作。當然，若增設二諧振電感L1與U，並分別串聯連接於第一壓電震 盪器41與第二壓電震盪器42以形成一全橋猎振電路，則可推動更高 功率的輪出，如第十六圖所示》 接續，請參閱第十七圖，其為本發明之高功率輸出之壓電式電源 轉換器之第十一實施例示意囷。電源轉換器其特徵在於：將二壓電震 盪器並排而形成一絕緣型壓電震盪器8〇，其用以取代一般全橋諸振電 路的-電容ϋ。絕緣髓電震妓係使跋本發狀魏轉換器中 的全橋諧振電路上，且位於全橋式之功率開關電路14之輪出端。絕緣 〇型践錄器8G係接收功率關電路14輸出方形波之交流脈波訊 號，當操作於共振頻率時，絕緣型壓電震盪器8〇用以儲存電能且具有 屋電特性，可以調整功率因素再將功率輸出，通電變形時會產生逆塵 電效應，變形後會產生正壓電效應，而其正、逆壓電效應的轉換將會 生成正電荷’使電壓放大’故可將方做的交流脈波訊號轉換為正弦 波的高交流電壓後輸出至外部負載運作。此外，若增設二譜振電感^ 與u，且於全橋式之功率開關電路14與一絕緣型壓電震盪器之間而 形成-全橋1§振電路，其巾，雜電感Ll與u分麟應㈣於絕緣型 壓電震I器之第-輸人端801與第二輸入端802。諧振電感|^與1_2 Q係接收功率開關電路14輸出方形波之交流脈波訊號，由於諧振電感 L1與U具有升壓與儲能功效，因此可提供絕緣型壓電震盪器8〇更高 的電壓轉換效率。當操作於諧振電感I·1、U與絕緣型壓電震盪器^ 之相同共振頻率點時，内阻抗最小、電流最大，絕緣型壓電震盪器 產生壓電效應而將方形波之交流脈波訊號轉換為正弦波之高交流電 壓，並由絕緣型壓電震盪器80之第一輸出端8〇3與第二輸出端"8〇4 分別輸出高交流電壓予外部負載運作，如第十八圖所示。 由上述應用於交流轉交流之電源轉換器之實施例中，本發明更可 將二屋電震盡器並排為-絕緣型壓電震盈器，其用以取代一般全橋讀 振電路中的二電容器，而絕緣型歷電震脱之結構及其動作原理與第 201101668 十A圊與第十B圖之實施例相同，故不再多加贅述。此外，本發明可 視需求並聯或串聯多個屋電震盪器或絕緣型壓電震盪器，以增加其轉 換效率。 本發明利用壓電電容、壓電震盪器與絕緣型壓電震盪器取代一般 應用於電源轉換器中的電容器，可應用於交流轉直流或交流轉交流等 類型的電源轉換器’具有優越的產業利用價值。此外，本發明除了可 解決一般電容器艟積大、漏電流大而功率輸出之效率差的問題、耐愿 性低而容易造成電容器爆炸或過熱起火的危險等之外，更可省略習知 技術使用線圏型升壓變壓器做大功率輸出的成本，達到降低製造成本 與產品設計輕薄短小的功效。 以上所述之實施例僅係為說明本發明之技術思想及特點，其目的 在使熟習此項技藝之人士能夠瞭解本發明之内容並據以實施，當不能 以之限定本發明之專利範圍，即大凡依本發明所揭示之精神所作之均 等變化或修飾，仍應涵蓋在本發明之專利範圍内。 【囷式簡單說明】 第一圖為本發明之高功率輸出之壓電式電源轉換器之電路架構圖。 第二圖為本發明之高功率輪出之壓電式電源轉換器之第一實施例示魚 圖。 第二Α囷為本發明實施例所提供之壓電震盪器之結構圖。 第fB圖為本發明實施例所提供之壓電震盪器之等效電路。 第二C圖為本發明實施例所提供之壓電電容之等效電路。 第四圖為第一圖中之交流轉直流之濾波整流電路圖。 第五圖為本發明之高功率触之壓電式電㈣換器之第二實施例示竟 圖。 〜 第六圓為本發明之高功率輸出之塵電式電源轉換器之第三實施例 圖。 第七A圖於半橋諧振電路中並聯多個壓電震盪器之示意圖。 201101668 第七Β圖於半橋諧振電路中串聯多個壓電震盪器之示意圓。 第八圖為本發明之高功率輸出之壓電式電源轉換器之第四實施例示意 圖。 第九圖為本發明之高功率輸出之壓電式電源轉換器之第五實施例示意 圖》 第十Α囷為絕緣型壓電震盪器之結構剖視圖。 第十B圓為絕緣型壓電震蘆器之等效電路。 第十- A ®於全橋諸振電路巾並射她緣龍電震盪器之示意圖。 第十-B®於全橋諸振電財串财個絕緣型壓電錄狀示意圈。 ΟBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high power output waste electric power converter, and more particularly to a power converter that utilizes a piezoelectric element to boost power output. [Prior Art] Currently, more and more portable devices are beginning to provide advanced functions such as GPRS, wireless Internet, and Bluetooth, as well as video and camera photography. Compared to bloated and bulky portable devices, consumers hope that the product design is not only light and short, but also easy to operate, and has a long battery life. Consumer preferences have created a dilemma for circuit design engineers: they must provide more power to the system and generate more voltages. But at the same time, portable products can be used by the power supply and Battery capacity is decreasing. In order to meet these technical requirements, designers must use higher power efficiency. However, in general power converter circuits, general capacitors are connected in series or in parallel to the inductor to perform the spectral effect. However, the capacitance of the general capacitor is low. If the voltage signal is too large, it will cause a large leakage current. The efficiency of the power output is not high, and the fuel pressure of the capacitor is insufficient. The failure mode will cause the capacitor to explode, which may easily lead to the risk of fire. In addition, the general power supply will use a coil type step-up transformer to increase the output power. However, if you want to provide high-power G, the capacity of the line _ transformer itself will be very large, in addition to the efficiency loss of the core. In addition to the increase in cost, weight and bulk are also contrary to the requirements of lightness, thinness and shortness. In view of this, the present invention proposes a high power output piezoelectric power converter to improve the shortcomings present in the prior art. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a piezoelectric power converter of high power output, which utilizes a piezoelectric element having a simple structure to provide an increased output power of multiples, thereby achieving the effect of high power output. Another object of the present invention is to provide a high-touch Wei-lai converter, 3 201101668 to replace the general capacitor with a piezoelectric element having a simple structure, the leakage current of the piezoelectric element is small, the waste resistance is high, and the temperature is high. There is no danger of overheating and fire, and its reliability is high, which can solve the problem of low pressure resistance and overheating and ignition caused by capacitors in the conventional power converter. Secondly, the piezoelectric element has small volume and thin package thickness, which has a competitive advantage in the market. A further object of the present invention is to provide a piezoelectric power converter with high power output, which provides a multiple of increased output power by using a piezoelectric element, and can omit the cost of using a coil type step-up transformer for high power output in the prior art. Reduce manufacturing costs and product design is light and short. In order to achieve the above object, the present invention provides a piezoelectric power converter of high power output, which is applied to an AC to DC power converter, comprising at least a first piezoelectric element, a second piezoelectric element and a third piezoelectric element. Component, rectifier circuit, power factor correction circuit, pulse width modulator, power switch circuit, filter rectifier circuit and feedback circuit. The third piezoelectric element is located between the rectifier circuit and the power factor correction circuit, and the power switch circuit is located at the output end of the power factor correction circuit. The pulse width modulator is connected to the power switch circuit, and the first piezoelectric element is located in the power switch circuit. Between the filter rectifier circuits, the second piezoelectric element is located at the output of the filter rectifier circuit. The rectifier circuit receives an AC signal and rectifies it to output a continuous current signal to the third piezoelectric element. The third piezoelectric element receives the DC signal and provides the power factor correction circuit, and the power factor correction circuit receives the first The three piezoelectric element outputs a DC signal, and adjusts a power factor thereof to generate a high voltage DC output voltage to the power switch circuit, and the power switch circuit receives a pulse width modulation signal of the pulse width modulator output for power Switching on/off operation, and converting the surface voltage DC output voltage outputted by the power factor correction circuit into an AC pulse signal to the first piezoelectric element, the first piezoelectric element receiving the AC pulse signal, after the piezoelectric effect The output of a high AC house 'chopper rectifier circuit rectifies the high AC voltage of the mu component output to the DC voltage, and the second piezoelectric element receives the DC voltage output from the filter rectifier circuit and provides the external load operation 'return circuit system Output a feedback signal to the pulse width modulator according to one of the external load states Pulse width modulation signal. In addition, the present invention provides another high-power round-off piezoelectric power converter, which uses the 201101668 AC-to-AC power converter. Since the high AC voltage is directly turned to the external load operation, the filter rectifier circuit is not required. The act of converting an AC voltage to a DC voltage. The power converter includes at least one first piezoelectric element that receives an AC pulse signal, converts it to a high AC voltage, and rotates to an external load operation. The purpose, technical contents, features, and effects achieved by the present invention will become more apparent from the detailed description of the embodiments and the accompanying drawings. [Embodiment] Please refer to the first diagram of the circuit diagram of the piezoelectric power converter of the high power output of the present invention. The power converter 10 includes at least a first piezoelectric element 101 and a filter rectifier circuit 1〇. 2 and at least one second piezoelectric element 103, the input end of the chopper rectifying circuit 102 is connected to the first piezoelectric element 101' and the output end of the filter rectifying circuit 1?2 is connected to the second piezoelectric element 103. The first piezoelectric element 1〇1 receives an AC pulse signal, and outputs a high AC voltage after the piezoelectric effect, and the filter rectifier circuit 1〇2 outputs the high AC voltage of the first piezoelectric element 1〇1. The rectification is a DC voltage, and the DC voltage output from the filter rectifier circuit 102 is received by the second piezoelectric element 1〇3, and the DC voltage is supplied to an external load. Please refer to the second figure, which is a schematic diagram of a first embodiment of a piezoelectric power converter with high power output according to the present invention. The power converter is applied to an AC to DC converter, and includes a rectifier circuit 11, a power factor correction circuit 12, a pulse width modulator 13, a power switch circuit 14, a buffer filter rectifier circuit 15, and a feedback circuit 16, at least one first a piezoelectric element, at least a second piezoelectric 7L member and at least a third piezoelectric element. The third piezoelectric element is a second piezoelectric capacitor 19' which is used to replace the general capacitor. The second piezoelectric capacitor 19 is located between the rectifier circuit 仂 and the power factor correction circuit 12, and the power switch circuit 14 is located at the power factor correction. At the wheel end of the circuit 12, the pulse width modulator 13 is connected to the power switching circuit 14, and the first piezoelectric element is a piezoelectric oscillator 18, which replaces the capacitor used in the general half bridge resonant circuit. The electric oscillator 18 is located between the power switching circuit 14 and the filter rectifying circuit 15, and the first piezoelectric element is a first piezoelectric capacitor 彳7, which is used to replace a general capacitor. The first piezoelectric capacitor 17 is located at the input terminal of the filter circuit 15. The towel, the rectifying circuit n 5 201101668 receives an alternating current signal and rectifies it to output a constant current signal to the second piezoelectric capacitor 19 for charging, wherein the rectifying circuit 11 can be a stell barrier sbd Quickly reply to bridge rectifier circuits such as two-pole Zhao (FRD) and Zener two-pole Zhao (ZD). The second capacitor 19 receives the DC signal and is supplied to the power factor correction circuit 12. The power factor correction circuit receives the DC signal output from the second piezoelectric capacitor 19 and adjusts a power factor thereof to generate a high voltage DC output voltage. Power switch circuit 14, wherein power switch circuit 14 is a half bridge power switch circuit. The power switch circuit 14 receives the pulse width modulation signal of the pulse width modulator 13 for power switch on and off operation, and converts the high voltage DC output voltage outputted by the power factor correction circuit into a square wave. An AC pulse signal is applied to the piezoelectric oscillator 18. When the piezoelectric oscillator 18 is operated at the resonance frequency, the piezoelectric oscillator 18 is used for storing electric energy and has piezoelectric characteristics, and the power factor can be adjusted to output the power. When the electric current is deformed, an inverse piezoelectric effect is generated, and the deformation is generated. The positive piezoelectric effect, and the conversion of the positive and negative piezoelectric effects will generate a positive charge, so that the voltage is amplified, so that the AC pulse signal of the square wave can be converted into a high AC voltage of the sine wave and output to the filter rectifier circuit 15 The conversion process is considered a piezoelectric effect. The filter rectifier circuit 15 rectifies the AC current output from the piezoelectric oscillator 18 into a DC voltage, outputs the voltage to the first piezoelectric capacitor π, and supplies the DC voltage to the external load by the first piezoelectric capacitor 17. The feedback circuit 16 rotates a feedback signal to the pulse width modulator 13 according to the power state of one of the external loads to adjust the pulse width modulation signal. * Among them, the first piezoelectric capacitor 17 and the second piezoelectric capacitor 彳9 have a small volume, a thin package thickness, a low temperature resistance, a small leakage current, an improved power output efficiency, and a 咼 which can withstand about 3 volts. It has the advantages of high voltage resistance and high voltage resistance, and further solves the shortcomings of the general capacitor due to low pressure resistance (-pressure of 450 volts) and the risk of excessive input voltage and damage or overheating. Since the DC signal of the whole circuit is the Kelly DC and the second calendar capacitor is charged, the present invention can increase the energy storage of the second piezoelectric capacitor 19' by series or parallel connection. And the pressure resistance ^ In addition, the pressure = slosh H 18 after the pressure f effect 'has a high capacitance, can provide a multiple increase in output power' from this, it can be seen that the present invention can omit the conventional technology ❹ coil type Big 201101668 The cost of power output, Dalin low manufacturing cost and product design (four) short effect. In the further step-by-step, the money is swayed (four), the materials are, the (four), the high temperature resistance, the good quality, the small volume, the thin package thickness, and the market competitive advantage, so the house electric shock absorber 18 is more than the general resonant circuit The capacitors in the capacitor have higher performance. Wherein, the structure of the piezoelectric shock absorber 18, as shown in the third figure, is made of a substrate 21 in the shape of a circular plate, which may be square or rectangular or other geometric shape, and then Silver knees, copper paste or media are also made of a conductive layer 22 which is shaped like a shape, which is stronger than all or part of the upper surface and the lower surface of the substrate 21 to form a piezoelectrically suppressed two poles to conduct current. 〇Continued with the equivalent circuit of the piezoelectric element 18, as shown in the third B ® , the equivalent circuit has green equivalent resistance R, equivalent inductance L, and equivalent capacitance representing electrical and mechanical characteristics, respectively. Ca and cb. Among them, the electricity shock absorber 18 is different from the capacitor in the general resonant circuit in that the conventional Wei converter has a difference between the corrective call voltage due to the capacitance, inductance effect and characteristics of the power transmission line, and if the capacitance resistance is greater than the inductance For the resistance, the current phase will lead to the voltage phase. Otherwise, the current phase will be the phase of the voltage. If there is a phase difference between the current and the electricity, then a part of the power will be lost. The lost energy is called the “level power”. "(4) When the wire is large, the power is reduced, and the power factor is worse, so the conversion efficiency is poor. When the curtain electric shock is used to break the H 18 at the resonance frequency, the electric shock absorber can be used as the resonant inductor by using the equivalent inductance L in the equivalent circuit to form a half bridge vibration circuit. The piezoelectric shock absorber 18 is used for storing electric energy and has piezoelectric characteristics, and the power factor can be adjusted to make the current and the voltage are in phase. At this time, the equivalent impedance R is the smallest, the current is the largest, and the conversion efficiency is the best. The output power is the largest: The mechanical property α of the equivalent capacitance in the equivalent circuit is generated by the piezoelectric effect, and the mechanical characteristic Cb value is approximately three times the electrical capacity of the electrical characteristic, and the Ca value is added to the capacitance of the Cb value, The piezoelectric oscillating device 18 has a high capacitance (Q=C*V), so that the output power of the multiple is increased, and the efficiency of energy conversion is improved. The first piezoelectric capacitor 17 and the second electrical capacitor 19 are not operated at the resonance frequency, and have a high capacitance and a polarity when receiving the DC voltage, and the first piezoelectric capacitor 17 and the second piezoelectric capacitor 19 are equal. The effective circuit, as shown in the third figure, shows the equivalent resistance R, the equivalent resistance L, and the equivalent capacitance Ca indicating the electrical characteristics in the equivalent circuit of 201101668. Please refer to the fourth 囷, which is the AC-DC filter rectifier circuit diagram in the first figure. The filter rectifier circuit 15 includes diodes D1 and D2 and a filter inductor L. One end of the filter inductor L is connected to the diode D1舆D2, and the other end is connected to the first piezoelectric capacitor 17. The diodes D1 and D2 receive the high AC voltage output from the piezoelectric oscillator 18. Since the diodes D1 and D2 have the characteristics of unidirectional conduction, the high AC voltage alternating in direction and magnitude can be converted into a DC voltage. Therefore, it is used for rectification. When the high AC voltage input by the piezoelectric oscillator 18 is a positive half cycle, the diode D1 is forward biased, and the current can flow from the diode D1 through the filter inductor L to the first piezoelectric capacitor 17 for charging. The diode 髅D2 is a reverse bias, which is equivalent to an open state, and no current flows. When the high AC voltage input by the piezoelectric oscillator 彳8 is negative half cycle, the diode D1 is reverse biased, which is equivalent to an open state, no current flows, and the diode D2 is forward biased, and the current can be The diode D2 flows out through the wave inductor L to the first piezoelectric capacitor 17, and the first piezoelectric capacitor 17 outputs a DC voltage to an external load. Referring to the fifth circle, a schematic diagram of a second embodiment of the piezoelectric power converter of the high power output of the present invention is different from the second figure in that there are two first piezoelectric elements, and the power switch circuit 14 is The full-bridge power switching circuit, the two first piezoelectric elements are replaced by the two capacitors of the general-bridge vibration circuit, and are located between the power-off circuit 14 and the rectification wave circuit 15, and the second-piezoelectric elements are respectively The electric shock 41 and the second piezoelectric shock absorber 42. The full-bridge power switch circuit is connected to the output end of the power factor correction circuit 12 and the pulse width of the pulse width is 135. The power switch is turned on/off, and the power factor correction circuit 12 can be output. The high-voltage direct-current output electric f is converted into a square-shaped fiber-optic fiber, and the ship is loaded into the first piezoelectric device 41 and the second ground-electric shock device 42. When the first one of the flutes and the second piezoelectric vibrator 42 are at the resonant frequency, the equivalent of the electric shock absorber 41 and the second piezoelectric shock 42 respectively in the equivalent circuit is Xiao, (10) into - full bridge fault circuit. The first-piezoelectric shock absorber 201101668 41> and the second (four) money device 42 can divide the alternating current pulse signal into the alternating current electric grinder to the wave rectifying circuit 15 and the high alternating current via the wave rectifying circuit 15 The voltage rectification is - DC electric shock, and the output is supplied to the first piezoelectric capacitor 17 for charging, and then the first electric capacitor 17 is touched by the DC (4) to the external load. After the towel, the _(4) shock absorber 41 and the second ray electric shock device 42 pass the house electric effect, the first curtain electric shock device 41 and the second electric shock absorber 42 respectively generate high electric capacity to provide The increased output power of the multiples therefore provides a higher power output than using only a piezoelectric oscillator. Next, referring to the sixth figure, a schematic diagram of a third embodiment of the high power output type electric power converter of the present invention is shown. The resonant circuit in the power converter is provided with a resonant inductor L" which is located between the half-bridge power switch circuit 14 and the first-seat electric shock device 41 to form a half-bridge resonant circuit. The vibration-damping inductor L1 is a receiving power switch. The AC pulse signal outputted by the circuit 14 can provide a higher voltage conversion efficiency of the first piezoelectric oscillator 41 due to the resonant inductor [_1 has a boosting and energy storage efficiency. When operating in the resonant inductor u and the first When the piezoelectric oscillator 41 has the same resonance frequency point, the internal impedance is the smallest and the current is the largest, and the first piezoelectric oscillator 41 generates a piezoelectric effect to convert the AC pulse signal into a high AC voltage, and can increase the power several times. The power conversion efficiency can be provided. The filter rectifier circuit 15 rectifies the high AC voltage into a DC voltage, outputs the voltage to the first piezoelectric capacitor 17 for charging, and then outputs the DC voltage from the first piezoelectric capacitor 17 to the external load. Q In addition, in the sixth figure, a plurality of first piezoelectric oscillators 41 may be connected in parallel or in series as required, as shown in FIGS. 7A and 7B. The seventh A diagram is connected in parallel with a plurality of voltages in the half-bridge resonant circuit. Electric shock In the figure, after the plurality of first piezoelectric oscillators 41 are connected in parallel, after the piezoelectric effect is generated by the first piezoelectric oscillators 41, the generated capacitance is multiplied, and the power conversion efficiency is achieved. Optimized. Figure 7B is a schematic diagram of a plurality of piezoelectric oscillators connected in series in a half-bridge resonant circuit. In the figure, after the plurality of first piezoelectric oscillators 41 are connected in series, the first piezoelectric oscillators 41 are generated. After the piezoelectric effect, the generated capacitance is larger than that of the single piezoelectric oscillator 41. Although the capacitance of the plurality of first piezoelectric oscillators 41 is slightly smaller than that of the plurality of first piezoelectric oscillators 41 in parallel, one The first piezoelectric oscillator 41 can withstand a voltage of about 3000 volts, in other words, the voltage resistance of the plurality of first piezoelectric oscillators connected in series can be multiplied by multiple times. 201101668 Next, referring to the eighth figure, the high power of the present invention A fourth embodiment of the output piezoelectric power converter is illustrated. The resonant circuit in the power converter is provided with two resonant inductors U and U, which are located between the full bridge power switch circuit 14 and the two piezoelectric oscillator. Forming a full bridge resonant circuit, two of which The electric oscillator is a first piezoelectric oscillator 41 and a second piezoelectric oscillator 42, and the resonant inductors |_1 and U are respectively connected in series to the first piezoelectric oscillator 41 and the second piezoelectric oscillator 42-resonant inductance U and The U system receives the AC pulse signal output from the power switch circuit 14. Since the vibration inductors I·1 and U have a boosting and energy storage function, the first piezoelectric oscillator 41 and the second piezoelectric oscillator 42 can be respectively provided. Higher voltage conversion efficiency. When operating at the same resonant frequency point of the damper U, L2, the first piezoelectric oscillator 41, and the second piezoelectric oscillator 42, the internal impedance is the smallest, the current is the largest, and the first voltage is The electric oscillator 41 and the second piezoelectric oscillator 42 respectively generate a piezoelectric effect and convert the AC pulse signal into a high AC voltage and can increase the capacitance several times, in addition to improving the power conversion efficiency, High power output applications. The filter rectifier circuit 15 rectifies the high AC voltage to a DC voltage and outputs it to the first piezoelectric capacitor 17 for charging, and then outputs the DC voltage from the first piezoelectric capacitor 17 to an external load. Thereby, the full bridge resonant circuit of the present invention can output more power than the half bridge resonant circuit when operating at the resonant frequency. Furthermore, the present invention can parallel or series connect a plurality of first piezoelectric oscillators 41 or second piezoelectric oscillators 42 to increase its conversion efficiency. Next, please refer to the ninth drawing, which is a schematic view of a fifth embodiment of a piezoelectric power converter of high power output according to the present invention. The power converter is characterized in that two piezoelectric oscillators are arranged side by side to form an insulated piezoelectric oscillator 80, which is used in place of the two-capacitor insulated piezoelectric oscillator 80 of a general full-bridge resonant circuit. The full-bridge spectral circuit in the power converter is located between the full-bridge power switching circuit 14 and the filter rectifier circuit 15. The insulated piezoelectric oscillator 80 is a receiving power switching circuit 14 that outputs a square wave AC pulse signal. When operating at a resonant frequency, the insulating piezoelectric oscillator 80 is used to store electrical energy and has an electrical property, and the power factor can be adjusted. Then the power output, when energized and deformed, will produce an inverse piezoelectric effect, which will produce a positive piezoelectric effect, and the conversion of the positive and negative piezoelectric effects will generate a positive charge, so that the voltage is amplified, so the square wave can be The AC pulse signal conversion 201101668 is a high AC voltage of the sine wave and is output to the filter rectifier circuit 彳5. The filter rectifier circuit 15 converts the AC voltage whose direction and magnitude are alternating into a DC voltage according to the received high AC voltage as a positive half cycle or a negative half cycle, and then outputs the DC voltage to the external load by the first piezoelectric capacitor 17 . Among them, the insulating piezoelectric oscillator 80 has a small leakage current (about 0 to 0. 2//A), which has the advantages of improved conversion efficiency, high pressure resistance, high temperature resistance, good insulation, small size, and thin package thickness, so it is higher than the two capacitors in the general full-bridge resonant circuit. efficacy. As shown in Figs. 10A and 10B, the tenth a is a cross-sectional view of the structure of the insulated piezoelectric oscillator, and the tenth is the equivalent circuit of the insulated piezoelectric oscillator. The insulating piezoelectric oscillator 80 includes a substrate 81, at least one first upper electrode 811, at least one first lower electrode 813, at least one second upper electrode 812, and at least one second lower electrode 814 » substrate 81 The first upper electrode 811 and the second upper electrode 812 are disposed on the upper surface of the substrate 81, and a first upper electrode 811 and the second upper electrode 812 are disposed between the first upper electrode 811 and the second upper electrode 812. Insulating region 815. The first lower electrode 813 and the second lower electrode 814 are disposed on the lower surface ′ of the substrate 81 and an insulating region 815 is disposed between the first lower electrode 813 and the second lower electrode 814. The insulating region 815 maintains the physical properties of the ceramic material, and exhibits an insulating state. The first lower electrode 813 and the second lower electrode 814 are respectively symmetric with the first upper electrode 811 and the second upper electrode 812, and the first upper electrode 811, The substrate 81 between the lower electrodes and the second upper electrode 812 and the second lower electrode 814 respectively pass an AC pulse signal, and after the piezoelectric effect, the AC pulse signal can be converted into a high AC. Voltage. Among them, the power conversion efficiency of the insulated piezoelectric oscillator 80 is slightly lower than that of the use of the two-piezoelectric oscillator, but the circuit design can be simplified to reduce the manufacturing cost and the product design is light and thin. Furthermore, the present invention can parallel or series connect a plurality of insulated piezoelectric oscillators 80 to increase its conversion efficiency. For example, in the diagram of the first-A diagram, a plurality of insulated piezoelectric oscillators are connected in parallel in the full-bridge resonant circuit, and the plurality of insulated piezoelectric oscillators are connected in parallel, and the insulating piezoelectric (four) H 80 is produced by the electric effect. After that, the generated capacitance is multiplied, thus optimizing the power conversion efficiency. As shown in FIG. 11B, a schematic diagram of a plurality of insulated piezoelectric vibrators connected in series in a full-bridge readout circuit, and a plurality of insulated type electric shock absorbers 11 201101668 80 are connected in series, and the insulating type is pressed. After the piezoelectric oscillator 80 generates a piezoelectric effect, the generated capacitance is larger than that of the single insulated piezoelectric oscillator 80, although the capacitance of the plurality of insulated piezoelectric oscillators 80 is slightly smaller than that of the parallel multiple insulated piezoelectric oscillations. 80, but an insulated piezoelectric oscillator 80 can withstand a voltage of about 3000 volts, in other words, the relative wearability of a plurality of series-connected insulated piezoelectric oscillators 80 can be multiplied. In addition, the insulated piezoelectric oscillator used in the full-bridge resonant circuit provides greater output power than the piezoelectric oscillator in the half-bridge resonant circuit. Next, referring to the twelfth figure, a sixth embodiment of the piezoelectric power converter of the high power output of the present invention is shown in the power converter. The resonant circuit is provided with two damped inductors L1 舆 U, which are located at the full bridge. Between the power switch circuit 14 and an insulated piezoelectric oscillator, a full bridge resonant circuit is formed, wherein the vibrational inductances 1_1 and |_2 respectively correspond to the first input terminal 801 of the insulated type electric oscillator. Second input 802. The resonant inductor Li and the U-based receiving power switching circuit 14 output a square wave AC pulse signal, and the resonant inductors I·1 and U have a boosting and energy-enhancing effect, thereby providing a higher voltage conversion of the insulated piezoelectric oscillator. Efficiency When operating at the same resonant frequency point of the resonant inductor U, U and the insulating piezoelectric oscillator 80, the internal impedance is the smallest and the current is the largest, and the insulating piezoelectric oscillator 8 produces a piezoelectric effect and the square wave is exchanged. The pulse wave signal is converted into a high AC voltage of a sine wave, and a high AC voltage is supplied to the neon circuit 15 by the first output terminal 8〇3 and the second output terminal 8〇4 of the insulated piezoelectric vibrator 80, respectively. Due to the piezoelectric effect, the capacitance can be increased several times. In addition to improving the conversion efficiency of the gods, it can be used as a high-power output. Thereby, the operation of the "resonant frequency material" of the full bridge resonator material of the present invention outputs more power. In addition, the current financial requirements are parallel or (4) rural insulation surface 80 to increase its conversion efficiency. It can be known from the above that 'the invention does not need to use a huge coil type step-up transformer, as long as the wood piezoelectric || Yinglin half bridge circuit, can output up to W watt power, 'if more than two pressures The electric shock 1 or insulated piezoelectric shock applied to the full bridge harmonic path can drive higher power output, and further, the piezoelectric capacitor and the piezoelectric shaker, 12 201101668 insulated piezoelectric oscillator Small and thin package thickness, in addition to reducing manufacturing costs, the circuit configuration is more simplified and the product design is light, thin and short, and has a competitive advantage in the market. In addition, piezoelectric capacitors and piezoelectric oscillators, insulated type electric shock absorbers have the advantages of high pressure resistance, good insulation, and low leakage current, which can solve the general low voltage and overheating of capacitors, and the output is more dangerous. High power efficiency. Next, please refer to the thirteenth embodiment of the seventh embodiment of the power converter of the present invention applied to AC to AC. The utility model is characterized in that: directly outputting a high AC voltage to an external load, so that a filter rectifier circuit is not required to convert the AC voltage into a DC voltage. The power converter comprises a rectifier circuit 11, a power factor correction circuit 彳2, a pulse width modulator 13, a power switch circuit 14 and a feedback circuit 16, at least a first piezoelectric element and at least a third piezoelectric element. . The third piezoelectric element is a second piezoelectric capacitor 19, which is used to replace a general capacitor. The second piezoelectric capacitor 19 is located between the rectifier circuit 11 and the power factor correction circuit a, and the power switch circuit 14 is located at the power factor. The output end pulse width modulator 13 of the correction circuit 连接 is connected to the power_circuit 14, and the first piezoelectric element is a piezoelectric vibrator 18, which replaces the piezoelectric oscillation of the capacitor used in the general half bridge resonant circuit. The device is located in the power switch circuit 14 where the 'rectifier circuit 4 receives an alternating current signal' and rectifies it to output a direct current signal to the second electrical capacitor 19, and the second piezoelectric capacitor 19 receives the direct current signal and Provided to the power factor correction circuit 12, the power factor 〇 correction circuit 12 is connected to the (four) two-electrode capacitor 19 output DC signal, and adjusts its power factor to generate - high-voltage DC output voltage to the power switch circuit 14, power switch The 14 series receives the pulse width modulation signal outputted by the pulse width modulator 13 to perform the power on/off operation, and outputs the high dust DC output of the power factor correction circuit 12 Change to square wave - AC pulse signal to the piezoelectric shock absorber. His piezoelectric shock absorber 怊 Γ Γ ί 开关 switch circuit 14 output AC pulse signal, when operating the piezoelectric shaker 18 frequency # The equivalent inductance L in the equivalent circuit is used for (10) vibration inductance, €. Among them, the piezoelectric shock pull 18 uses _ stored electric energy and has the ability to adjust the turn of the eye to ride the power wheel, when the power is turned on, it will produce a reverse power, and the job will produce a positive electrical effect, while its positive, negative > The conversion of the if effect will generate a positive charge of 13 201101668, which will amplify the voltage, so the AC pulse signal of the square wave can be converted into a high AC voltage of the sine wave and output to the external load. The feedback circuit 16 outputs a feedback signal to the pulse width modulator according to the power state of the external load to adjust the pulse width modulation signal. The piezoelectric oscillator 18 conversion process is regarded as a piezoelectric effect. After the piezoelectric oscillator 18 has a high electric capacity and provides a multiple output power, the piezoelectric oscillator 18 has a higher performance than the capacitor in the general oscillation circuit. Thus, the present invention is known. It is possible to omit the conventional technology to use the coil type to make the high-power output cost to reduce the manufacturing cost and the product design is light and thin, and further, the piezoelectric oscillator 18 has a small leakage current and high pressure resistance. High temperature resistance, good insulation, small size and small package thickness are extremely competitive in the market. Next, please refer to FIG. 14 , which is a schematic diagram of the high-power output piezoelectric power converter of the present invention, which differs from the thirteenth in that it has two first electric devices, and The power-related circuit is a full-bridge red power surface circuit 14, and the first piezoelectric 7C device replaces the two capacitors in the general-bridge resonant circuit, and is located at the output end of the full-bridge power switching circuit 14, two first The piezoelectric elements are a first piezoelectric surger 41 and a second electrical shock absorber 42 respectively. The first wisher electric shock device 41 and the second house electric shock absorber receive the power foot circuit 14 rounds fU square red _ all the bribes, after the secret electricity effect, the AC pulse signal can be converted into a high AC exhibition to the outside when - Piezoelectric shock 41 and second piezoelectric shock (4) After the ship's electric effect, the second and second piezoelectric shock (four) 42 respectively generate high capacitance to provide a multiple of 5 output power, and therefore, only use - piezoelectric shock 1 device can provide high power output. For the continuation, please refer to the fifteenth figure, which is a schematic diagram of the embodiment of the high power output dust electric power supply of the present invention. A spectral leakage circuit in the power converter is provided with a spectral vibration power circuit 14 and a first-span electric shock device 41 to form a semi-leakage circuit. The resonant inductor L1 receives the pulse signal output from the power_circuit 14 . Since the spectral oscillator L1 has energy storage efficiency, it can provide higher electrical display efficiency of the first-ground electric shock device 41. After the effect, the power can be turned on. 201101668 The AC pulse signal output from the circuit 14 is converted to a high AC voltage for external load operation. Of course, if two resonant inductors L1 and U are added and connected in series to the first piezoelectric oscillator 41 and the second piezoelectric oscillator 42 to form a full bridge hunting circuit, the higher power rotation can be promoted. As shown in Fig. 16, the splicing is shown in Fig. 17, which is a schematic diagram of an eleventh embodiment of the piezoelectric power converter of the high power output of the present invention. The power converter is characterized in that two piezoelectric oscillators are arranged side by side to form an insulated piezoelectric oscillator 8 〇 which is used to replace the capacitor ϋ of the general full bridge vibration circuit. The insulating myocardium shock is applied to the full-bridge resonant circuit in the 魏-shaped Wei converter and is located at the wheel-out end of the full-bridge power switch circuit 14. The insulating 〇 type recorder 8G receives the power pulse circuit 14 to output a square wave AC pulse signal. When operating at the resonance frequency, the insulating piezoelectric oscillator 8 〇 is used for storing electric energy and has a house electric characteristic, and the power can be adjusted. The factor will then output the power, and the reverse dust electric effect will occur when the power is deformed. The positive piezoelectric effect will be generated after the deformation, and the conversion of the positive and negative piezoelectric effects will generate a positive charge 'to make the voltage amplify'. The AC pulse signal is converted to a high AC voltage of a sine wave and then output to an external load operation. In addition, if a two-spectrum inductor ^ and u are added, and a full-bridge type power switching circuit 14 and an insulated piezoelectric oscillator are formed, a full-bridge 1 ́s oscillating circuit is formed, and the ridges and the inductances L1 and u are formed. The lining should be (4) the first input end 801 and the second input end 802 of the insulated piezoelectric vibration device. The resonant inductor |^ and 1_2 Q receive power switch circuit 14 outputs a square wave AC pulse signal. Since the resonant inductors L1 and U have a boosting and energy storage function, an insulated piezoelectric oscillator can be provided. Voltage conversion efficiency. When operating at the same resonant frequency point of the resonant inductors I·1, U and the insulated piezoelectric oscillator ^, the internal impedance is the smallest and the current is the largest, and the insulated piezoelectric oscillator generates the piezoelectric effect and the square wave is the AC pulse. The signal is converted into a high ac voltage of the sine wave, and the first output terminal 8〇3 of the insulated piezoelectric oscillator 80 and the second output terminal "8〇4 respectively output a high AC voltage to the external load operation, such as the tenth Figure 8 shows. In the above embodiment of the power converter applied to the AC to AC, the present invention can further arrange the Ermatsu electric shock absorber side by side as an insulated piezoelectric shock absorber, which is used to replace the general full bridge readout circuit. The structure of the two capacitors and the insulating type electric shock and the principle of its operation are the same as those of the embodiment of the 201101668, the tenth and the tenth, and therefore no further description is given. Further, in the present invention, a plurality of electric shockers or insulated piezoelectric oscillators may be connected in parallel or in series as needed to increase the conversion efficiency. The invention utilizes a piezoelectric capacitor, a piezoelectric oscillator and an insulated piezoelectric oscillator to replace a capacitor generally used in a power converter, and can be applied to a power converter such as an AC to DC or an AC to AC. Use value. In addition, the present invention can solve the problems of general capacitor accumulation, large leakage current, and poor power output efficiency, low tolerance, and easy risk of explosion or overheating of the capacitor. The cost of the high-power output of the wire-type step-up transformer achieves the effect of reducing manufacturing cost and product design. The embodiments described above are merely illustrative of the technical spirit and the features of the present invention, and the objects of the present invention can be understood by those skilled in the art, and the scope of the present invention cannot be limited thereto. That is, the equivalent variations or modifications made by the spirit of the present invention should still be included in the scope of the present invention. [Simple Description] The first figure is a circuit diagram of the piezoelectric power converter of the high power output of the present invention. The second figure is a first embodiment of a piezoelectric power converter of the high power turn-off of the present invention. The second embodiment is a structural diagram of the piezoelectric oscillator provided by the embodiment of the present invention. Figure fB is an equivalent circuit of the piezoelectric oscillator provided by the embodiment of the present invention. The second C is an equivalent circuit of the piezoelectric capacitor provided by the embodiment of the present invention. The fourth figure is the AC-DC filter rectifier circuit diagram in the first figure. The fifth figure is a second embodiment of the piezoelectric-type electric (four) converter of the high power touch of the present invention. The sixth circle is a third embodiment of the high power output dust-electric power converter of the present invention. Figure 7A is a schematic diagram of a plurality of piezoelectric oscillators connected in parallel in a half-bridge resonant circuit. 201101668 The seventh diagram is a schematic circle in which a plurality of piezoelectric oscillators are connected in series in a half-bridge resonant circuit. Figure 8 is a schematic view showing a fourth embodiment of the piezoelectric power converter of the high power output of the present invention. Fig. 9 is a schematic cross-sectional view showing a fifth embodiment of a piezoelectric power converter of a high power output according to the present invention. Fig. 10 is a cross-sectional view showing the structure of an insulated piezoelectric oscillator. The tenth B circle is the equivalent circuit of the insulated piezoelectric vibrator. The tenth-A ® is a schematic diagram of the Quanzhen Zhenzhen circuit wiper and her edge dragon electric oscillator. The tenth-B® is an insulated piezoelectric recording frame in Quanqiao. Ο
第十二圓林發日狀高功率触之壓電式電轉邮之第六實施例示 意圖。 第十三本個於統轉交紅電轉換器之第七實施例 圖。 第十四圖為本個之高神細之壓料電轉換器之^實施例示 意圖。 第十五圖為本發明之高神輸出之壓電式電轉換器之第九實施例 示意圖。 第十六18林發明4功率細之践式絲雜肖之針實施例示 意圊。 第十七圖為本發狀高裤触之壓電式電轉細之第十 示意圖。 第十八圖為本發明之高功率輪^之壓電式電轉換器之第十二實施例 7K音圖。 【主要元件符號說明】 10電源轉換器 101第一壓電元件 102濾波整流電路 17 201101668 103第二壓電元件 11整流電路 12功率因數校正電路 13脈波寬度調變器 14功率開關電路 15濾波整流電路 16回授電路 17第一壓電電容 18壓電震盪器 19第二壓電電容 21基材 22導電層 23導電層 41第一壓電震盪器 42第二壓電震盪器 80絕緣型壓電震盪器 801第一輸入端 802第二輸入端 803第一輸出端 804第二輸出端 81基材 811第一上電極 812第二上電極 813第一下電極 814第二下電極 815絕緣區域The sixth embodiment of the twelfth round forest is characterized by a high-power touch piezoelectric electric transfer. The thirteenth embodiment of the seventh embodiment of the red-switch converter. The fourteenth figure is an illustration of the embodiment of the high-voltage electric power converter. Fig. 15 is a view showing a ninth embodiment of the piezoelectric electric converter of the high god output of the present invention. The sixteenth and eighteenth inventions of the invention are shown in the example of the embodiment of the invention. The seventeenth figure is a tenth schematic diagram of the piezoelectric electro-transfer of the hair-like high-pants. Fig. 18 is a view showing a twelfth embodiment of the piezoelectric power converter of the high power wheel of the present invention. [Main component symbol description] 10 power converter 101 first piezoelectric element 102 filter rectifier circuit 17 201101668 103 second piezoelectric element 11 rectifier circuit 12 power factor correction circuit 13 pulse width modulator 14 power switch circuit 15 filter rectification Circuit 16 feedback circuit 17 first piezoelectric capacitor 18 piezoelectric oscillator 19 second piezoelectric capacitor 21 substrate 22 conductive layer 23 conductive layer 41 first piezoelectric oscillator 42 second piezoelectric oscillator 80 insulated piezoelectric Oscillator 801 first input 802 second input 803 first output 804 second output 81 substrate 811 first upper electrode 812 second upper electrode 813 first lower electrode 814 second lower electrode 815 insulating region