201039541 六、發明說明： 【發明所屬之技術領域】 本發明係有關於-種雙向全橋式零電麗—零電流直流/直 雜換ϋ ’尤其是指-有隔_式與勤魏傳輸之直流 /直流轉換器，其能利用在電力電子技術領域如：電池充放電 纟統、分散式電祕應系統、直流/直流魏供應器、不斷電 . 系統等，以能經零電壓與零電流切換使得贿效率提升，而在 ❹ 錄體施域用上更增實用功效特㈣雙向全橋式零電壓-零 電流直流/直流轉換器創新設計者。 【先前技術】 按，已知的雙向直流/直流轉換器可應用於電池充放電系 統、分散式電源供應系統、不斷電系統的場合，其中，就現有 雙向直流/直流轉換器的相關技術化如下： ❹ 請參閱在93年9月11日所公告之「具中性點之雙向直流 /直流轉換裝置」所示，其具有_第—直流·端點及一第二 直流電壓端關以作為能量雙向傳遞之輸人或輸出端。由於該 第二直流電壓端點組之正端及負端之間的電壓等於該輸入直 流電壓源之雜及電容器之賴串接相加，因此該第二直流電 厂堅端點組之正端及負端之_麵_雜人錢電壓源電 壓之兩倍，由於闕容社錢與雜人錢龍源之電壓相 等’因此該第二直流電壓端點組之中性端之電壓恰等於該第二 直流電壓端點組之正端及負端間電壓的一半，所以該等壓之中 201039541 !端視為巾H點輪出，因此其在該能量傳遞方向可完成一具中 ㈣輸出之倍壓功能’且該電容器之耐壓僅需該第二直流電麗 端點組之正端及負端間電壓的-半，因此可降低該電容哭之電 壓額定。 °° 〇月再參閱98年1月1日所公告之「高效率單級式多重輸 又向轉換盗」所不，其利用潔淨能源具有電壓易隨負載變動 - 錢化之自然特性，以及蓄電池之穩定電壓源雛，依據所規 〇 __換情料操作於料狀態、齡織及域狀態。兩 者電舰皆直接以電壓_式作為三繞_合電感之輸入 端。當畜電池與潔淨能關時聯合供電時，細_屬之繞 組電壓，將依據蓄電池所屬之繞組電壓做電壓調節，盘蓄電池 所屬之繞組麵達成平衡，因料需方法及額外 的電路汉计’即可克服電壓源輸入時繞組電壓不一致之問題。 充電迴路亦透過輕合電感做能量傳遞，具有低壓轉換形式，故 能源姻率高於傳統辅助電齡統。所需之·及二極體皆具 ‘ 冑賴箝做果，有效處理漏絲量所造紅賴突波現象， 並利用_具限制電流瞬間變化之特性，使二極體無逆向高恢 復電流。 叫再參閱93年2月η日所公告之「雙向返馳切換式電源 供應器」所示’其包括：_具有相互電感齡之主繞組及次繞 組的變壓器’該主繞組倾合至該轉換器的電壓輸人，而該次 燒_係岭至該轉換器的_輸出；—錄鮮元，其包括 201039541 舆該主繞副配輪__; _蝴啦 該次繞組串聯配置的次切換開關；其特徵為，該主控制= 償輸’喊中該次控制單元則可用以在^ '.及則"供X控制的輪出功率。該轉換器使 一個係主切換開關的控制哭， 衩制器. 器，故增加了戦路輸/^^切換_的控制 關的控制嫩間物= 該兩個切換開201039541 VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a kind of bidirectional full-bridge type zero-electricity-zero current direct current/direct miscellaneous exchange, which means that there is a separate type and a Weiwei transmission. DC/DC converter, which can be used in the field of power electronics such as battery charging and discharging system, distributed electric system, DC/DC power supply, uninterruptible power system, etc., to pass zero voltage and zero The current switching makes the bribery efficiency more efficient, and it is more innovative and practical in the application of the 录 体 施 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 创新 创新 创新 创新 创新 创新 创新 创新 创新 创新 创新[Prior Art] According to the known bidirectional DC/DC converter, it can be applied to a battery charging and discharging system, a distributed power supply system, and an uninterruptible power system. Among them, the related technicalization of the existing bidirectional DC/DC converter As follows: ❹ Please refer to the “Non-Directional DC/DC Converter with Neutral Point” announced on September 11, 1993, which has _D-DC terminal and a second DC voltage terminal as The input or output of energy bidirectional transmission. Since the voltage between the positive terminal and the negative terminal of the second DC voltage end group is equal to the input DC voltage source and the capacitors are connected in series, the positive terminal of the second DC power plant The negative side of the _ surface _ miscellaneous people's money voltage source voltage twice, because the volume of the company's money and the miscellaneous money source is equal 'so the voltage of the neutral end of the second DC voltage end group is exactly equal to the second DC The voltage between the positive and negative terminals of the voltage end group is half of the voltage, so the 201039541! end of the equal pressure is regarded as the H point of the towel, so it can complete the double voltage function of the middle (four) output in the energy transfer direction. 'And the withstand voltage of the capacitor only needs - half of the voltage between the positive terminal and the negative terminal of the second DC current terminal group, thereby reducing the voltage rating of the capacitor crying. ° ° 〇 再 参阅 参阅 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 The stable voltage source is based on the condition, the age, and the state of the domain. Both of the electric ships are directly connected to the input of the three-winding-inductance with the voltage _. When the battery is combined with the clean energy, the winding voltage of the fine_genus will be adjusted according to the winding voltage of the battery, and the winding surface of the battery should be balanced, due to the material requirements and additional circuit. It can overcome the problem of inconsistent winding voltage when the voltage source is input. The charging circuit also transmits energy through the light coupling inductance, and has a low-voltage conversion form, so the energy marriage rate is higher than the traditional auxiliary electric age system. The required and the diodes have the characteristics of 'the tongs to effectively handle the red spur phenomenon caused by the amount of wire leakage, and use the characteristic of limiting the instantaneous change of the current to make the diode have no reverse high recovery current. . Please refer to the "Two-way flyback switching power supply" announced in February 1993, which includes: _ transformer with primary and secondary windings of mutual inductance age. The main winding is tilted to the conversion. The voltage of the device is input, and the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Switch; characterized in that the main control = reimbursement 'speaking the control unit can be used to control the power of the X and the control. The converter makes the control of a main switch to cry, and the controller is added, so the control of the switch/gate switch is added. The control of the switch is controlled.
G 〇 以造成零電壓切換，因此降低切換損失。时電机方向可 請再參閱96年4月1曰所公開之「用於燃料電池電動車 鶴系統之雙向直流/直流轉換器」所示，其所揭示 雙向轉換11，峨力崎喊細軸式。當昇壓模 式時’此時電能轉換器係當作一電流源轉換器電路，以提升直 流匯流排電壓。低壓側開關以非對稱方式操作，並 =重疊導通區間，由於此導通區間非常短，因此大部分^間 變壓器健側繞組電流僅流過—個開關，所以開 ==㈣輪11叫當―電能轉換 雜作於降__，隸錢__絲量至f電池，此 時電能賴n可當作—具畔綠倍雜之麵辭橋轉換 盗，向歸亦以非對稱方式操作，並具有很短的盲時加d k)區間。因開關皆以非對稱方式操作，故控制電路設計較 不容易。 【發明内容】 201039541 Φιθ ^月之又向全橋式零電壓—零電流直流/直流轉換器，.立 穌身_效漏電錢與―個電容來諸 射轉關，料軸鼓料操作於 體系統上2=?低了樹麵她，有助於整 的高_員=；：用同步整流技術，降低輪出二極體 性者。 3 耐其整體騎使訂更增實用功效特 Ο 【實施方式】 有更之技軸容、發明目的及其達成之功效 並請一併參閱所 兀正π疋的縣，兹於下詳細說明之， 揭之圖式及圖號： 首先叫茶閱第-圖本發明之主電路架翻所示，本發明 主要係包含：輸入電感（1 )、（ 2 )，主要是將輸入電壓轉換 成一具有漣波小且平穩的直流輸入電流；-變壓器（3)，包 ❹ 含一次側繞組（3 1)及-二次侧繞組（3 2 ); 一負載裝置 (4)〔§f—併參财三圖本發明之轉換H於昇壓/放電模式電 路圖所示〕；數第-開關元件⑸，其包含了寄生電容（5ι) 與反向一極體（5 2 )，連接該變壓器（3 )之一次侧繞組（3 1 )，以利麟振電路的特徵，使得其在導通與截止於零電壓 與零電流狀‘4下切換；數第二剩元件（6 )，其同樣包含了 寄生電容（6 1 )與反向二極體（6 2 )，且可為一全橋式功 率開關電路所組成，與該變壓器（3)之二次侧繞組（ 201039541 連接，主要是將該變壓器（3)所提供之交流電源整流成—直 流電源；及輸入電感（1 )、（ 2 )分別與諧振電容（7 )及電 容（8)連接。 本發明於操作上可分為二種模式：降壓/充電模式與昇壓/ 放電模式。在降壓/充電模式日寺，請一併參閱第二圖本發明之 轉換器於降壓/充電模式電路圖所示，將電路巾之第—開關元 件（5 ) Q Q作為主要開關使用，其中於q〜么中之仏〜匕及 “分別為弟一開關元件（5 ) β〜!24的寄生電容（5 1) 及反向二極體（5 2 )〔Body Diode〕，而第二開關元件（6 ) p 1則作為同步整流開關使用，輸入電感（丄），而變 壓器（3 )會產生漏電感（3 3 )、（ 3 4 ) 、諧振電 各（7) Q，電容（8) G及負載（4);而在昇壓/放 電权式中，4-併參閱第三圖本發明之轉換器於昇壓/放電模 式電路圖所TF，則將第二開關元件（6 作為電路主要 開關’其中 (6 1 )及寄生二極體（6 2 )〔Body Diode〕，而第—開關元 件（5 )㈣4則作為同步整流開關使用，輸入電感（2 U„2， 而變壓器（3)會產生漏電感（3 3)、（3 4) W諸 振電容（7 ) C，"電容⑻Q及負載⑷〜。請再一併 參=第四圖本發明之馳器於降壓/充錢搞，_主要控 制4序與零電壓_零電、糾換虹作時序圖及紅圖本發明之 轉換器於昇壓/放電模式時，開齡要控辦序與零電壓—零電 201039541 之兩種模式的電路 同 机切換的工作時序圖所示’可以得知本發明_ 操作原理及開_零電壓_零電流的切換效果皆: 請再-併參閱第六圖本發明之轉換器於降心充 的專效電路騎示，本發明在—個切換週期㈣ ^ 工作模式，以下就六個模式之動作原理作說明：為、個 模式一G 〇 to cause zero voltage switching, thus reducing switching losses. For the direction of the motor, please refer to the "Two-way DC/DC Converter for Fuel Cell Electric Vehicle Crane System" published on April 1st, 1996. The two-way conversion is revealed. formula. When in boost mode, the power converter acts as a current source converter circuit to boost the DC bus voltage. The low-voltage side switch operates in an asymmetrical manner and = overlaps the conduction interval. Since this conduction interval is very short, most of the transformer's healthy side winding current flows only through one switch, so the open == (four) wheel 11 is called "electric energy" The conversion is mixed with __, the money __ silk to the f battery, at this time the electric energy can be regarded as - with the green side of the bridge, the conversion is stolen, and the return is also operated in an asymmetric manner, and has Very short blind time plus dk) interval. Since the switches operate in an asymmetric manner, the control circuit design is less easy. [Summary of the Invention] 201039541 Φιθ ^ month to the full bridge type zero voltage - zero current DC / DC converter, the main body of the body _ effect leakage money and a capacitor to the various shots, the shaft drum operation in the body 2=? Low on the system, she helps the whole high _ member =;: Use synchronous rectification technology to reduce the roundness of the polar person. 3 It is more resistant to its overall riding and more practical features. [Embodiment] There are more technical shafts, invention purposes and the effects achieved. Please refer to the county where you are 兀 疋 ,, as explained below. The schematic diagram and the figure number of the invention are first shown as the main circuit frame of the invention. The invention mainly comprises: input inductors (1), (2), mainly converting the input voltage into one Chopper small and smooth DC input current; - Transformer (3), including 一次 primary winding (3 1) and - secondary winding (3 2 ); a load device (4) [§ f - and coca The three-part conversion H of the present invention is shown in the circuit diagram of the boost/discharge mode; the number-th switching element (5) includes a parasitic capacitance (5 ι) and a reverse one-pole body (52) connected to the transformer (3) The primary winding (3 1 ) is characterized by a Levin circuit that switches between turning on and off at zero voltage and zero current '4; and the second remaining component (6), which also contains parasitic capacitance (6 1 ) and the reverse diode (6 2 ), and may be composed of a full bridge power switch circuit, and The secondary winding of the compressor (3) (201039541 connection, mainly to rectify the AC power supply provided by the transformer (3) into a DC power supply; and the input inductors (1), (2) and the resonant capacitor (7) The capacitor (8) is connected. The invention can be divided into two modes: buck/charge mode and boost/discharge mode. In the buck/charge mode, please refer to the second figure of the present invention. The converter is shown in the circuit diagram of the buck/charge mode, and the first switching element (5) of the circuit towel is used as the main switch, wherein in the q~~~~ and "different switching elements (5) The parasitic capacitance (5 1) and the reverse diode (5 2 ) [Body Diode] of β~!24, and the second switching element (6) p 1 is used as a synchronous rectification switch, the input inductance (丄), and The transformer (3) will generate leakage inductance (3 3 ), ( 3 4 ), resonant power (7) Q, capacitance (8) G and load (4); and in the boost/discharge weight, 4-and Referring to the third diagram, the converter of the present invention is in the boost/discharge mode circuit diagram TF, and the second switching element (6 is used as the circuit). The main switch 'where (6 1 ) and the parasitic diode (6 2 ) (Body Diode), and the first - switching element (5) (4) 4 are used as synchronous rectification switches, input inductance (2 U„2, and transformer (3 ) Leakage inductance (3 3), (3 4) W vibration capacitance (7) C, "capacitance (8)Q and load (4)~. Please refer to the fourth figure. Charge money, _ main control 4 sequence and zero voltage _ zero electricity, rectification of the rainbow timing diagram and red diagram of the converter of the present invention in the boost / discharge mode, the age of the start to control the sequence and zero voltage - zero The operation timing diagram of the circuit of the two modes of 201039541 is the same as the operation timing diagram of the same machine. It can be known that the operation principle and the switching effect of the on-zero voltage_zero current are all: Please refer again to the conversion of the present invention. In the special circuit riding of the heart-down charging, the present invention is in a switching cycle (four) ^ working mode, and the following describes the operating principle of the six modes:
G Ο 當κ時作為主要開關之第—開關元件（5)仏及 生電容（51 ) &和&的電壓已經完全的釋放完畢，直到〜。 開關元件⑸㈣才導通，使得第—開關元件（5) f導通於零電壓切換，同時第—開關元件（5 )仏及 寄生電容（5 1) 輕，鱗已經充電近似L ;此時 電流4持續的對舰電容（7 ) 4電，同時電流經過變壓器 (3) 一次侧繞組（31)的漏電感（3 3)〜而形成一個 並聯1振迴路，使電流形成—正紐使得主要_可以在定 電壓及零電流的狀態下導通賴止，同時在作為畔整流開關 第二開關元件（6)〜及1也操作於零電流切換。此狀離下 由於认)之電流僅有激磁電流&，因此激磁電⑹之值很小，所 以在此狀態下可以忽略此激磁電流值。 模式二 當時間叫德電路結紅作，上_下激磁電流的 情況下，此時作為主要開關之第一開關元件（5)认及A截止 且仏和么尚未導通’第—開關元件（5#及Α的寄生電容（5 9 201039541 5;;:，^第-開關元件(。_的寄生 毛奋（51)，、匕電壓為零，同一時間 寄生電容叫）^充電，並且寄 也開始放电。*寄生電容（5 i ) c小3持續玫電到k。、 激卿流一及〜〜等於Μ，此時寄 生電奋（5 1 ) &、ς4電壓為、 ' 此結束。 此狀態到 Ο Ο 模式三 =W流經作為主要開關之第一開關元件 (5)及3的寄生電容（51)〜及I與賴器⑶ := 二(3 ☆)形成一迴路，同時_電私對第一開關 讀（5) 1及的寄生電容（川&、4電。同時輸 入電感（1 )電流會持續的向諧振電容⑺&充電义⑴電 壓會-直制的上升，並且\電壓近似於d i 而因模式四k叫]、模式々叫]、模式4叫]之 操作模式分別與模式— h〜A]、模式土⑸ k-d為完全對稱，所以在此不再另外做詳細的說明。^ -併參閱第七圖本翻之義狀昇心放錢式時的等效電 路圖所丁 &電路分析六個模式之動作顧與随/充電模式 相似，在此將同樣不再描述。 、 請再-併參閱第八圖本發明之轉換器於降心充電模式時 開關零電胸奐實驗圖所示，由其中可以輕易的看到在^及 10 201039541 ^到達零時，開關6及匕才導通。使主要開關導通及截止狀 悲皆操作於零電Μ的情況底下。 明再一併參财九目本發明之觀1於降壓/充電模式時 開關零電流切換實驗圖所示，可以由圖中明顯的看出主要開關 於降壓/充電模式時，皆操作在零電塵—零電流的切換狀態。 - 請再一併參閱第十圖本發明之轉換器於昇壓/放電模式時 • 零電翻換實驗®所示，由射可以姉的看到在^及 〇 零時’才導通。使主要關導通及截止 狀悲皆刼作於零電壓的情況底下。 請再-併參㈣十-圖本發明之娜^於昇壓/放電模式 時，關零電流切換實驗圖所示，可以由圖中明顯的看出主開關 於昇壓/放二電模式時，皆操作在零電壓—零電流的切換狀態。 然而前述之實施例或圖式並非限定本發明之產品結構或 使财式，贿所雜_域巾具有通常蝴叙適#變化或 - L飾，白應視為不脫離本發明之專利範_。 . 藉由以上所述’本發明之元件組成與使用實施說明可知， 本發明與現有結構相較之下，本發明由於具有輸入電流連波 小、且具錄關_換的技術，故可減少__換損失， 讓整體轉換器效率提高，且為全橋式電路架構，使得控制器設 计容易，而在其整體施行使用上更增實用價值性者。 綜上所述，本發明實施例確能達到戶斤預期之使用功效，又 其所揭露之具體構造，不僅未曾見諸於同類產品中，亦未曾公 11 201039541 開於申請前，誠已完全符合專利法之規定與要求，爰依法提出 發明專利之申請，懇請惠予審查，並賜准專利，則實感德便。G Ο When κ is the main switch - the switching element (5) 仏 and the raw capacitor (51) && voltage have been completely released until ~. The switching element (5) (4) is turned on, so that the first switching element (5) f is turned on by zero voltage switching, while the first switching element (5) and the parasitic capacitance (5 1) are light, and the scale has been charged approximately L; at this time, the current 4 continues. The power of the ship capacitor (7) 4, while the current through the transformer (3) primary side winding (31) leakage inductance (3 3) ~ and form a parallel 1 vibration circuit, so that the current is formed - the positive key makes the main _ can be In the state of constant voltage and zero current, the second switching element (6)~ and 1 are also operated at zero current switching. Since the current is only the excitation current & the value of the excitation current (6) is small, the value of the excitation current can be ignored in this state. Mode 2 When the time is called the red circuit of the German circuit, in the case of the upper-lower magnetizing current, the first switching element (5) as the main switch recognizes that A is turned off and the sum is not yet turned on. #和Α的寄生电容(5 9 201039541 5;;:,^第-switching element (. _ parasitic hairy (51), 匕 voltage is zero, the same time parasitic capacitance is called) ^ charging, and the start also starts Discharge. * Parasitic capacitance (5 i ) c small 3 continuous rose to k., 激 卿 流 and ~ ~ equal Μ, at this time parasitic electric (5 1 ) & ς 4 voltage is, ' this end. State to Ο Ο Mode 3 = W flows through the first switching elements (5) and 3 as the main switch (51) and I and the device (3): = 2 (3 ☆) form a loop, while _ Privately read the (5) 1 and parasitic capacitance of the first switch (Chuan & 4, while the input inductor (1) current will continue to rise to the resonant capacitor (7) & charge (1) voltage will rise straight, and \ The voltage is similar to di and the mode of operation is 4, k is called], mode is called], mode 4 is called] mode and mode - h~A], mode soil (5) kd It is completely symmetrical, so there is no need to give a detailed explanation here. ^ - And refer to the seventh figure, the equivalent circuit diagram of the right-handed lift-off type, and the circuit analysis of the six modes. /Charging mode is similar, and will not be described here again. Please, again - and refer to the eighth figure, the converter of the present invention is shown in the experimental diagram of the switch zero-power chest in the down-center charging mode, which can be easily seen When ^ and 10 201039541 ^ arrive at zero, the switch 6 and 匕 are turned on. The main switch is turned on and the cut-off is all operating under the condition of zero electric power. Ming again participates in the nine-eye view of the invention. In the pressure/charge mode, the switching zero current switching experiment diagram can be clearly seen from the figure. When the main switch is in the buck/charge mode, it operates in the zero-dust-zero current switching state. Referring to the tenth figure, the converter of the present invention is in the step-up/discharge mode, and the zero-voltage switching experiment is shown in the figure, and it can be turned on when the laser can be seen and turned on at the time of zero and zero. Sorrow is all about zero voltage. Please again - and参(四)十-图 The invention is in the boost/discharge mode, the zero-current switching experiment diagram is shown, it can be clearly seen from the figure that the main switch operates in the boost/discharge mode. The zero voltage-zero current switching state. However, the foregoing embodiments or drawings do not limit the product structure of the present invention or make the financial formula, the bribe miscellaneous _ domain towel has the usual butterfly change #- or - L decoration, white should be seen The present invention can be seen from the above description of the component composition and the use of the present invention. Compared with the prior art, the present invention has a small input wave and has a small input wave. Recording _ change technology, it can reduce __ change loss, improve the efficiency of the overall converter, and is a full-bridge circuit architecture, making the controller design easy, and more practical value in its overall implementation . In summary, the embodiments of the present invention can achieve the expected use efficiency of the household, and the specific structure disclosed therein has not only been seen in similar products, nor has it been used in the same industry. The provisions and requirements of the Patent Law, the application for invention patents in accordance with the law, and the application for review, and the grant of patents, are truly sensible.
12 201039541 【圖式簡單說明】 第一圖：本發明之主電路架構圖 第二圖：本發明之轉換器於降壓/充電模式電路圖 第三圖：本發明之轉換器於昇壓/放電模式電路圖 第四圖：本發明之轉鋪於關/充電模式時，_主要 控辦序與零賴-零電流切換的，時序圖要 . 第五® :本發明之轉換器於/放電模式時，開關: 〇 翻畴鮮糕-零錢讀的工作時序圖要 第六圖：本_之轉縣於續蝴赋時的等效電路 第七圖：本發㈤之轉換器於昇壓/放電模式時的等致電 第八圖：本發明之轉換器於降壓/充電模式時開關零奸 切換實驗圖 v 第九圖：本發明之賴器於降壓/充賴鱗開關 切換實驗圖 ⑽ ❹ 帛十圖：本發明之轉換器於昇壓/放電模式時開關零電壓 切換實驗圖 第十-圖：本發明之轉換器於昇壓/放電模式時開關零電 流切換實驗圖 【主要元件符號說明】 (2 ) 輸入電感 (3 1) —次側繞級 (33)漏電感 (4) 負載裝置 (1) 輸入電感 (3) 變壓器 (3 2 )二次側繞組 (34)漏電感 13 201039541 7 一—f 5 5 6 第一開關元件 (51) 寄生電容 反向二極體 (6) 第二開關元件 寄生電容 (6 2) 反向二極體 諧振電容 (8) 電容 o 1412 201039541 [Simple description of the diagram] First diagram: main circuit architecture diagram of the present invention. Second diagram: Circuit diagram of the converter of the present invention in buck/charge mode. Third diagram: converter of the present invention in boost/discharge mode The fourth diagram of the circuit diagram: when the transfer of the invention is in the off/charge mode, the main control sequence and the zero-zero current switching, the timing diagram is required. Fifth®: when the converter of the present invention is in the /discharge mode, Switch: 〇 畴 鲜 - - - - - - - - - - - - - - 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作 工作The eighth diagram: the converter of the present invention switches in the buck/charge mode switch diagram v. The ninth diagram: the invention of the device in the buck / charge scale switch switching experiment diagram (10) 帛 帛 帛Figure: Switching zero voltage switching experiment in the boost/discharge mode of the converter of the present invention. FIG. 10 is a diagram showing the switching zero current switching experiment diagram of the converter of the present invention in the boost/discharge mode [main component symbol description] ( 2) Input inductance (3 1) - secondary side winding (33) leakage inductance (4) Load device (1) Input inductor (3) Transformer (3 2 ) Secondary side winding (34) Leakage inductance 13 201039541 7 One—f 5 5 6 First switching element (51) Parasitic capacitance reverse diode (6) Second switching element parasitic capacitance (6 2) Reverse diode resonant capacitor (8) Capacitance o 14