TWI513158B - An extra-high step-up single-stage switching-mode converter with high efficiency and low cost features - Google Patents
An extra-high step-up single-stage switching-mode converter with high efficiency and low cost features Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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本發明是有關於一種昇壓電路，特別是指一種可用於如太陽能等再生能源，並提高昇壓效率達十數倍之超高昇壓比高效率低成本單級昇壓切換式轉換器。The invention relates to a booster circuit, in particular to a super-high boost ratio high-efficiency low-cost single-stage boost switch converter which can be used for a renewable energy source such as solar energy and has a boosting efficiency of several times.
近年來環保意識的抬頭，與溫室效應所帶來的二氧化碳排放污染問題，使得世界各國政府無不積極推動取之不盡、用之不竭的再生能源的應用，藉由太陽能、風力、水力、生質、及地熱等，無污染環境的天然資源作為發電的來源，使得再生能源成為一項引人注意的課題。In recent years, the rise of environmental awareness and the carbon dioxide pollution caused by the greenhouse effect have made governments around the world actively promote the inexhaustible use of renewable energy, through solar energy, wind power, water power, Biomass, geothermal, and other natural resources without pollution are sources of power generation, making renewable energy an attractive topic.
由於再生能源成為全世界都在關注的焦點，直流轉直流的昇壓裝置在電力電子領域中，更肩負了提高電能轉換效率的任務，而為了提高轉換器效率，各種零電壓或是零電流切換方式或是電路架構不斷被提出或加以研究，以提升再生能源之使用效率。Since renewable energy has become the focus of attention all over the world, the DC-to-DC booster has shouldered the task of improving the efficiency of power conversion in the field of power electronics. In order to improve converter efficiency, various zero-voltage or zero-current switching Ways or circuit architectures are constantly being proposed or studied to improve the efficiency of renewable energy use.
參閱圖1，為中華民國發明第I383568號專利「高效率昇壓式電源轉換器」，該專利案揭露目前常見的一種昇壓電源轉換器，該高效率昇壓式電源轉換器適用於將一外部電源的直流輸入電壓VIN 昇壓成一直流的輸出電壓VO ，且包括一耦合電路1、一開關Q、一昇壓電容C2 、一輸出電容CH 、一輸出二極體DH 、一箝制電容C1 ，及一切換電路2。Referring to FIG. 1 , the invention discloses a high-efficiency boost power converter of the No. I383568 patent, which discloses a conventional boost power converter, and the high-efficiency boost power converter is suitable for The DC input voltage V IN of the external power source is boosted into a DC output voltage V O and includes a coupling circuit 1, a switch Q, a boost capacitor C 2 , an output capacitor C H , and an output diode D H . A clamping capacitor C 1 and a switching circuit 2 are provided.
該耦合電路1包括二個繞於一鐵蕊(圖未示)上的繞組，分別是一第一繞組L1 ，及一第二繞組L2 ，每一繞組L1 、L2 具有一第一端(為極性點端)及一第二端(為非極 性點端)，該開關Q具有一電連接於該第一繞組L1 之非極性點端的一端、一電連接於地的另一端，及一接收外部控制信號的控制端，該開關Q可在導通狀態和不導通狀態間切換，該昇壓電容C2 包括一電連接於該第二繞組L2 之非極性點端的第一端，及一第二端，該輸出二極體DH 包括一電連接於該昇壓電容C2 之第二端的陽極和一陰極，該輸出電容CH 電連接於該輸出二極體DH 的陰極和地之間，該箝制電容C1 電連接於該第二繞組L2 之極性點端與地之間。The coupling circuit 1 includes two windings wound around a core (not shown), which are a first winding L 1 and a second winding L 2 , and each winding L 1 , L 2 has a first The terminal (which is a polarity point end) and a second end (which is a non-polar point end), the switch Q has an end electrically connected to the non-polar point end of the first winding L 1 and an other end electrically connected to the ground. a first end and a control terminal receiving an external control signal, the switch Q can be switched between conducting state and non-conducting state, which comprises a boost capacitor C 2 electrically connected to the second winding L 2 of the non-polar end point and a second terminal of the output diode D H comprises a electrically connected to the second terminal of the boost capacitor C 2, a cathode and an anode, the output capacitor C H is electrically connected to the output diode D H Between the cathode and the ground, the clamp capacitor C 1 is electrically connected between the polarity end of the second winding L 2 and the ground.
習知所揭露之高效率昇壓式電源轉換器雖可在非隔離架構下，區分低壓側大電流和高壓側低電流特性，且低壓側的電路採用低壓低導通損失之元件，所有元件具柔性切換以達成高轉換效率的目的。The high-efficiency boosting power converter disclosed in the prior art can distinguish between low-current side high current and high-voltage side low-current characteristics in a non-isolated structure, and the low-voltage side circuit uses low-voltage low-conduction loss components, and all components are flexible. Switch to achieve high conversion efficiency.
然而，傳統的昇壓式轉換器的電路中，該開關Q需具備承受高電壓及大電流之容量，且該輸出二極體DH 存在逆向回復突波電流之問題，因此其電源轉換效率不彰，其昇壓比例侷限於昇壓4倍以下之直流電源轉換應用，並且無法達成高效率之電源轉換機制，其次，利用變壓器昇壓，昇壓範圍受限於匝數比，倘若無法有效處理漏感能量情形下，轉換效率難以提高。However, in the circuit of the conventional boost converter, the switch Q needs to have a capacity to withstand high voltage and large current, and the output diode D H has a problem of reverse recovery surge current, so the power conversion efficiency is not Zhang, its boost ratio is limited to DC power conversion applications below 4 times boost, and can not achieve high efficiency power conversion mechanism. Second, with transformer boost, the boost range is limited by the turns ratio, if it can not be effectively processed In the case of leakage inductance energy, conversion efficiency is difficult to increase.
由上述所言可知，目前尚無可真正提高電能轉換效率的設計，實屬可惜，特別是處於相當重視再生能源的時代，確實有必要發展一種可以有效率的轉換電能之技術，以發揮再生能源之產出效益，使地球得以永續的發展。As can be seen from the above, it is a pity that there is no design that can really improve the efficiency of power conversion. Especially in the era of considerable emphasis on renewable energy, it is indeed necessary to develop a technology that can efficiently convert electricity to play a role in renewable energy. The output benefits enable the planet to develop sustainably.
因此，本發明之目的，即在提供一種超高昇壓比高效率低成本單級昇壓切換式轉換器。Accordingly, it is an object of the present invention to provide an ultra-high boost ratio high efficiency low cost single stage boost switching converter.
該超高昇壓比高效率低成本單級昇壓切換式轉換器，與一直流電源電性連接，並包含一昇壓單元、 一漏感回收單元，及一倍壓單元。The ultra-high step-up ratio high-efficiency low-cost single-stage step-up switching converter is electrically connected to the DC power supply and includes a boosting unit. A leakage inductance recovery unit, and a double pressure unit.
該昇壓單元包括一連接該直流電源的昇壓電感、一與該昇壓電感及該直流電源並聯之昇壓電容，及一與該昇壓電容並聯之功率開關。該漏感回收單元與該昇壓單元電性連接，並包括一漏感電容，及一與該漏感電容並聯之變壓器。該倍壓單元設置於該變壓器之二次側，並包括一第一倍壓電容、一第二倍壓電容，及一與該第一、二倍壓電容及該變壓器之二次側並聯之輸出電容，且該第一、二倍壓電容分別與該變壓器之二次側兩端連接。The boosting unit includes a boosting inductor connected to the DC power source, a boosting capacitor connected in parallel with the boosting inductor and the DC power source, and a power switch connected in parallel with the boosting capacitor. The leakage inductance recovery unit is electrically connected to the boosting unit, and includes a leakage inductance capacitor and a transformer connected in parallel with the leakage inductance capacitor. The voltage doubling unit is disposed on the secondary side of the transformer, and includes a first voltage doubler capacitor, a second voltage doubler capacitor, and a first and second voltage capacitors and a secondary side of the transformer The output capacitors are connected in parallel, and the first and second voltage doubled capacitors are respectively connected to the two ends of the secondary side of the transformer.
本發明之有益功效在於，藉由該漏感電容可有效回收變壓器之漏感，同時藉由釋能給該昇壓電容，而將能量提供予該變壓器，降低該變壓器漏感損失，進而達到提高該變壓器高轉換效率之目的。The beneficial effect of the invention is that the leakage inductance can effectively recover the leakage inductance of the transformer, and at the same time, by releasing energy to the boosting capacitor, energy is supplied to the transformer, thereby reducing leakage loss of the transformer, thereby achieving Improve the high conversion efficiency of the transformer.
3‧‧‧超高昇壓比高效率低成本單級昇壓切換式轉換器3‧‧‧Ultra boost ratio high efficiency low cost single stage boost switching converter
31‧‧‧昇壓單元31‧‧‧Boost unit
311‧‧‧昇壓電感311‧‧‧Boost Inductance
312‧‧‧昇壓電容312‧‧‧Boost capacitor
313‧‧‧功率開關313‧‧‧Power switch
314‧‧‧昇壓二極體314‧‧‧Boost diode
32‧‧‧漏感回收單元32‧‧‧Draining recovery unit
321‧‧‧漏感電容321‧‧‧ leakage inductance capacitor
322‧‧‧變壓器322‧‧‧Transformers
323‧‧‧變壓電感323‧‧‧Variable Inductance
33‧‧‧倍壓單元33‧‧‧double pressure unit
331‧‧‧第一倍壓電容331‧‧‧First voltage doubled capacitor
332‧‧‧第二倍壓電容332‧‧‧Second voltage doubler capacitor
333‧‧‧輸出電容333‧‧‧output capacitor
334‧‧‧第一倍壓二極體334‧‧‧First voltage doubled diode
335‧‧‧第二倍壓二極體335‧‧‧Second voltage doubled diode
336‧‧‧第三倍壓二極體336‧‧‧ Third voltage doubled body
4‧‧‧直流電源4‧‧‧DC power supply
圖1是一電路示意圖，說明習知中華民國發明專利第I383568號一種高效率昇壓式電源轉換器；圖2是一電路示意圖，說明本發明超高昇壓比高效率低成本單級昇壓切換式轉換器之較佳實施例；圖3是本發明之較佳實施例的時序圖；圖4是本發明之較佳實施例的電路示意圖，說明在t 0 ~t 1 模式下的操作；圖5是本發明之較佳實施例的電路示意圖，說明在t 1 ~t 2 及t 2 ~t 3 模式下的操作；圖6是一波形示意圖，說明在該較佳實施例中對一輸入直流電壓及一輸出電容實際進行量測所得之電壓波形；及圖7是一波形示意圖，說明該功率開關操作在ON/OFF時對一昇壓電感量測所得之電流波形。1 is a circuit diagram illustrating a high efficiency boost power converter of the Chinese Patent No. I383568; FIG. 2 is a circuit diagram illustrating the ultra high boost ratio high efficiency and low cost single stage boost switching of the present invention. 3 is a timing diagram of a preferred embodiment of the present invention; and FIG. 4 is a circuit diagram of a preferred embodiment of the present invention, illustrating operation in a mode of t 0 to t 1 ; 5 is a circuit diagram of a preferred embodiment of the present invention, illustrating operation in modes t 1 to t 2 and t 2 to t 3 ; and FIG. 6 is a waveform diagram illustrating an input DC in the preferred embodiment. The voltage waveform obtained by actually measuring the voltage and an output capacitor; and FIG. 7 is a waveform diagram illustrating the current waveform measured by a boost inductor when the power switch operation is ON/OFF.
有關本發明之相關申請專利特色與技術內容，在以下配合參考圖式之較佳實施例的詳細說明中，將可清楚的呈現。The detailed description of the preferred embodiments of the present invention will be apparent from the detailed description of the preferred embodiments.
參閱圖2，為本發明超高昇壓比高效率低成本單級昇壓切換式轉換器之較佳實施例，該超高昇壓比高效率低成本單級昇壓切換式轉換器3與一直流電源4電性連接，並包含一昇壓單元31、一漏感回收單元32，及一倍壓單元33。Referring to FIG. 2, a preferred embodiment of the ultra-high step-up ratio high efficiency low-cost single-stage boost switching converter of the present invention is provided, and the ultra-high step-up ratio high efficiency low-cost single-stage boost switching converter 3 and the continuous current The power source 4 is electrically connected and includes a boosting unit 31, a leakage inductance recovery unit 32, and a double voltage unit 33.
該昇壓單元31包括一連接該直流電源4的昇壓電感311、一與該昇壓電感311及該直流電源4並聯之昇壓電容312，以及一與該昇壓電容312並聯之功率開關313。在本較佳實施例中，該昇壓單元31更包括一與該昇壓電感311、該直流電源4及該昇壓電容312並聯之昇壓二極體314。在本較佳實施例中，該直流電源4為一12V~24V之直流電壓，該功率開關313為一PWM功率開關，且其工作之責任週期為36%。The boosting unit 31 includes a boosting inductor 311 connected to the DC power source 4, a boosting capacitor 312 connected in parallel with the boosting inductor 311 and the DC power source 4, and a parallel connection with the boosting capacitor 312. Power switch 313. In the preferred embodiment, the boosting unit 31 further includes a boosting diode 314 connected in parallel with the boosting inductor 311, the DC power source 4, and the boosting capacitor 312. In the preferred embodiment, the DC power source 4 is a DC voltage of 12V to 24V, and the power switch 313 is a PWM power switch, and the duty cycle of its operation is 36%.
該漏感回收單元32與該昇壓單元31電性連接，並包括一漏感電容321，及一與該漏感電容321並聯之變壓器322。在此應注意的是，本較佳實施例中，該變壓器322之一次側與二次側之匝數比為1：3。The leakage sensing unit 32 is electrically connected to the boosting unit 31 and includes a leakage inductance capacitor 321 and a transformer 322 connected in parallel with the leakage inductance capacitor 321 . It should be noted here that in the preferred embodiment, the ratio of the turns of the primary side to the secondary side of the transformer 322 is 1:3.
該倍壓單元33設置於該變壓器322之二次側，並包括一第一倍壓電容331、一第二倍壓電容332，及一與該第一、二倍壓電容331、332及該變壓器322之二次側並聯之輸出電容333。其中，該第一、二倍壓電容331、332分別與該變壓器322之二次側兩端連接。The voltage multiplying unit 33 is disposed on the secondary side of the transformer 322 and includes a first voltage doubler capacitor 331 , a second voltage doubled capacitor 332 , and a first and second voltage doubled capacitors 331, 332 . And an output capacitor 333 connected in parallel with the secondary side of the transformer 322. The first and second voltage doubled capacitors 331, 332 are respectively connected to the two ends of the secondary side of the transformer 322.
在本較佳實施例中，該倍壓單元33更包括一與該變壓器322之二次側並聯之第一倍壓二極體334、一串接於該第一、二倍壓電容331、332間之第二倍壓二極體335，及一串接於該第一倍壓電容331與該輸出電容333 間之第三倍壓二極體336。In the preferred embodiment, the voltage doubling unit 33 further includes a first voltage doubler 334 connected in parallel with the secondary side of the transformer 322, and a series connection to the first and second voltage capacitors 331. a second voltage doubled diode 335 between 332, and a series connected to the first voltage doubler capacitor 331 and the output capacitor 333 The third voltage diode 336 between the three.
參閱圖3、4，其中圖3為本發明超高昇壓比高效率低成本單級昇壓切換式轉換器3之功率開關313操作在t 0 ~t 1 、t 1 ~t 2 、t 2 ~t 3 三種模式下的波形圖。以下即針對該三種模式進行說明：首先，在t 0 ~t 1 模式時(配合參閱圖4)，該功率開關313為導通狀態，並分別依以下三路徑作釋能之動作。路徑一：該直流電源4及該漏感電容321同時對該昇壓電感311釋能。路徑二：該昇壓電容312經由該功率開關313對該變壓器322之一次側釋能。路徑三：該變壓器322之二次側分別經由該第一、二倍壓二極體334、335對該第一、二倍壓電容331、332釋能，此時，該輸出電容333將能量輸出至負載。Referring to Figures 3 and 4, Figure 3 shows the power switch 313 of the ultra-high step-up ratio high efficiency low-cost single-stage boost switching converter 3 of the present invention operating at t 0 ~ t 1 , t 1 ~ t 2 , t 2 ~ t 3 Waveforms in three modes. The following three modes are described: First, in the t 0 ~ t 1 mode (refer to FIG. 4), the power switch 313 is in an on state, and the following three paths are used to release the energy. Path 1: The DC power source 4 and the leakage inductance capacitor 321 simultaneously release the boost inductor 311. Path 2: The boost capacitor 312 releases the primary side of the transformer 322 via the power switch 313. Path 3: The secondary side of the transformer 322 discharges the first and second voltage-capacitors 331 and 332 via the first and second voltage-converting diodes 334 and 335, respectively. At this time, the output capacitor 333 will be energy. Output to the load.
參閱圖3、5，接著，在該t 1 ~t 2 模式時，為該功率開關313關閉的瞬間。此時，該漏感電容321回收該變壓器322的漏感能量，由圖3中Vclk 波形可知能量確實可被回收。Referring to Figures 3 and 5, then, in the t 1 ~ t 2 mode, the moment when the power switch 313 is turned off. At this time, the leakage inductance capacitor 321 recovers the leakage inductance energy of the transformer 322, and it can be seen from the V clk waveform in FIG. 3 that the energy can be recovered.
然後，在t 2 ~t 3 模式時(圖5)，該功率開關313為截止狀態，並會分別依以下三路徑作釋能之動作。路徑一：該昇壓電感311於上一週期在儲能之後與該直流電源4，經由該昇壓二極體314對該昇壓電容312釋能。路徑二：該變壓器322的漏感經由該昇壓二極體314釋能給該漏感電容321。路徑三：該第一、二倍壓電容331、332，與該變壓器322之二次側對該輸出電容333釋能。Then, in the t 2 ~ t 3 mode (Fig. 5), the power switch 313 is in an off state, and the action of releasing energy is performed according to the following three paths, respectively. Path 1: The boost inductor 311 is discharged to the DC capacitor 4 via the boost diode 314 after the energy storage in the previous cycle. Path 2: The leakage inductance of the transformer 322 is discharged to the leakage inductance capacitor 321 via the boosting diode 314. Path three: the first and second voltage-capacitors 331, 332, and the secondary side of the transformer 322 discharge the output capacitor 333.
本發明之超高昇壓比高效率低成本單級昇壓切換式轉換器3藉由該漏感電容321釋能給該昇壓電感311，而該昇壓電感311儲能之後會對該昇壓電容312釋能，該昇壓電容312再釋能給該變壓器322之一次側，所以不會造成漏感損失，可有效處理漏感能量，使轉換效率提高。The ultra-high step-up ratio high-efficiency low-cost single-stage boost switching converter 3 of the present invention is discharged to the boost inductor 311 by the leakage inductance capacitor 321 , and the boost inductor 311 stores the energy after the boost inductor 311 The boosting capacitor 312 is released, and the boosting capacitor 312 is reapplied to the primary side of the transformer 322, so that leakage inductance loss is not caused, and the leakage inductance energy can be effectively processed to improve the conversion efficiency.
實驗結果： 配合參閱圖6，為本案發明人以實際電路進行量測所得之波形圖。在本發明之較佳實施例 中，該直流電源4之輸入直流電壓為23.66V，而該輸出電容333之輸出電壓為400V。由此可知，當輸入電壓為23.66V時，輸出電壓可以昇壓至400V，約為16倍有餘。本發明之超高昇壓比高效率低成本單級昇壓切換式轉換器3輸出電壓對輸入電壓的比例關係式為n ((2-D)/(1-2D))。其中，n 為該變壓器322之圈數比(1：3)，D為該功率開關313之責任周期0.36，其比例關係式為Vo/Vs的伏秒平衡。整體轉換器之昇壓效果驚人，非常適合用作再生能源之電壓轉換。 Experimental results: Referring to FIG. 6, the waveform chart obtained by the inventor of the present invention measured by an actual circuit is shown. In a preferred embodiment of the invention, the DC power source 4 has an input DC voltage of 23.66V and the output capacitor 333 has an output voltage of 400V. It can be seen that when the input voltage is 23.66V, the output voltage can be boosted to 400V, which is about 16 times. The ratio of the output voltage to the input voltage of the ultra-high step-up ratio high-efficiency low-cost single-stage boost converter 3 of the present invention is n ((2-D)/(1-2D)). Where n is the turns ratio (1:3) of the transformer 322, D is the duty cycle of the power switch 313 of 0.36, and the proportional relationship is the volt-second balance of Vo/Vs. The overall converter's boosting effect is amazing, making it ideal for voltage conversion in renewable energy.
參閱圖7，為該功率開關313操作在ON/OFF下對該昇壓電感311實際進行量測所得之電流波形。由圖中波形可知，本發明之超高昇壓比高效率低成本單級昇壓切換式轉換器3能量轉換過程非常平順穩定，整體電路動作簡單不複雜，沒有漏感損失，確實具有實用價值。Referring to FIG. 7, the current waveform of the boost inductor 311 is actually measured by the power switch 313 operating under ON/OFF. As can be seen from the waveforms in the figure, the ultra-high step-up ratio high-efficiency and low-cost single-stage step-up switching converter 3 of the present invention has a smooth and stable energy conversion process, and the overall circuit operation is simple and uncomplicated, and there is no loss of leakage inductance, which is indeed practical.
經由以上實施例之敘述，可知本案確實具有以下功效增進之處：Through the description of the above embodiments, it can be seen that the present case does have the following enhancements:
透過該漏感電容321之設置，使該漏感電容321可釋能給該昇壓電感311，當該昇壓電感311儲能之後會對該昇壓電容312釋能，該昇壓電容312再釋能給該變壓器322之一次側，所以可有效降低漏感損失，並回收使用。Through the setting of the leakage inductance capacitor 321 , the leakage inductance capacitor 321 can be released to the boost inductor 311, and when the boost inductor 311 is stored, the boost capacitor 312 is discharged. The capacitor 312 is re-released to the primary side of the transformer 322, so that the leakage inductance loss can be effectively reduced and recycled.
藉由該切換式轉換器之設置，可使輸出電壓昇壓至16倍有餘，若改變該功率開關313之責任周期還可以得到更高的昇壓比率，其責任周期愈長則昇壓比會有更顯著之成長，所以可確實提高電壓轉換比例，適合用於再生能源之電壓轉換，以提升再生能源之使用效率。With the setting of the switching converter, the output voltage can be boosted to more than 16 times. If the duty cycle of the power switch 313 is changed, a higher boost ratio can be obtained, and the longer the duty cycle is, the boost ratio will be With more significant growth, it can improve the voltage conversion ratio and is suitable for voltage conversion of renewable energy to improve the efficiency of renewable energy.
藉由該昇壓單元31、該漏感回收單元32，及 該倍壓單元33之設置，不同於習知電路佈線困難而導致成本極高，本發明屬於單級電路透過簡易之佈線，降低設計之複雜度，且能使用較少的零件，可有效降低製造成本。By the boosting unit 31, the leakage inductance recovery unit 32, and The setting of the voltage doubling unit 33 is different from the conventional circuit wiring, and the cost is extremely high. The present invention belongs to a single-stage circuit, which reduces the complexity of the design through simple wiring, and can reduce the manufacturing complexity by using fewer parts. cost.
綜上所述，本發明藉以該昇壓單元31、該漏感回收單元32，及該倍壓單元33之設置，透過該漏感電容321釋能給該昇壓電感311，而該昇壓電感311儲能之後會對該昇壓電容312釋能，該昇壓電容312再釋能給該變壓器322之一次側，所以漏感損失相當小，可有效處理漏感能量，降低該變壓器322之漏感損失，使該變壓器322提高轉換效率，更提供佈線簡單、零件少、及降低製造成本之設計，故確實可以達成本發明之目的。In summary, the present invention provides the boost inductor 311 through the leakage inductance capacitor 321 by the boosting unit 31, the leakage inductance recovery unit 32, and the voltage multiplying unit 33, and the boosting voltage is applied to the boosting inductor 311. After the inductor 311 is stored, the boost capacitor 312 is released. The boost capacitor 312 is re-released to the primary side of the transformer 322, so the leakage inductance loss is relatively small, and the leakage energy can be effectively processed. The leakage inductance loss of the transformer 322 makes the transformer 322 improve the conversion efficiency, and provides a design with simple wiring, few parts, and reduced manufacturing cost, so that the object of the present invention can be achieved.
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.
3‧‧‧超高昇壓比高效率低成本單級昇壓切換式轉換器3‧‧‧Ultra boost ratio high efficiency low cost single stage boost switching converter
31‧‧‧昇壓單元31‧‧‧Boost unit
311‧‧‧昇壓電感311‧‧‧Boost Inductance
312‧‧‧昇壓電容312‧‧‧Boost capacitor
313‧‧‧功率開關313‧‧‧Power switch
314‧‧‧昇壓二極體314‧‧‧Boost diode
32‧‧‧漏感回收單元32‧‧‧Draining recovery unit
321‧‧‧漏感電容321‧‧‧ leakage inductance capacitor
322‧‧‧變壓器322‧‧‧Transformers
323‧‧‧變壓電感323‧‧‧Variable Inductance
33‧‧‧倍壓單元33‧‧‧double pressure unit
331‧‧‧第一倍壓電容331‧‧‧First voltage doubled capacitor
332‧‧‧第二倍壓電容332‧‧‧Second voltage doubler capacitor
333‧‧‧輸出電容333‧‧‧output capacitor
334‧‧‧第一倍壓二極體334‧‧‧First voltage doubled diode
335‧‧‧第二倍壓二極體335‧‧‧Second voltage doubled diode
336‧‧‧第三倍壓二極體336‧‧‧ Third voltage doubled body
4‧‧‧直流電源4‧‧‧DC power supply
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI320989B (en) * | 2006-09-21 | 2010-02-21 | Atomic Energy Council | |
| US8009444B2 (en) * | 2009-04-30 | 2011-08-30 | Hungkuang University | Boost device for voltage boosting |
| TWI351806B (en) * | 2008-05-29 | 2011-11-01 | Univ Yuan Ze | High step-up isolated converter with two input pow |
| TWI383568B (en) * | 2008-11-14 | 2013-01-21 | Univ Hungkuang | High efficiency step-up power converters |
| TWM447043U (en) * | 2012-05-04 | 2013-02-11 | Allis Electric Co Ltd | High efficient high step-up dc converter with interleaved soft switching mechanism |
| TWM452542U (en) * | 2012-10-19 | 2013-05-01 | Univ Nat Kaohsiung 1St Univ Sc | Elevated voltage improved forward converter suitable for renewable energy |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI320989B (en) * | 2006-09-21 | 2010-02-21 | Atomic Energy Council | |
| TWI351806B (en) * | 2008-05-29 | 2011-11-01 | Univ Yuan Ze | High step-up isolated converter with two input pow |
| TWI383568B (en) * | 2008-11-14 | 2013-01-21 | Univ Hungkuang | High efficiency step-up power converters |
| US8009444B2 (en) * | 2009-04-30 | 2011-08-30 | Hungkuang University | Boost device for voltage boosting |
| TWM447043U (en) * | 2012-05-04 | 2013-02-11 | Allis Electric Co Ltd | High efficient high step-up dc converter with interleaved soft switching mechanism |
| TWM452542U (en) * | 2012-10-19 | 2013-05-01 | Univ Nat Kaohsiung 1St Univ Sc | Elevated voltage improved forward converter suitable for renewable energy |
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