箝位器 的英文怎麼說

中文拼音 [qiánwèi]
箝位器 英文
clamper
  • : clip
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  1. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later

    每個獨立的航空靜止變流採用占空比擴展有源正激式高頻脈沖直流環節電路拓撲,由占空比擴展有源正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成,前級採用電壓型pwm前饋控制技術,后級採用三態dpm電流滯環控制技術。
  2. The field of video signal processing is now undergoing a digital reform. the digital processing technique is clearly expatiated in this paper, such as a / d convert, anti - alias filter, clamp control, gain control, pll, synchronization circuit, color decoder, comb filters

    本文詳細敘述了視頻圖像的數字處理方法,重點介紹了視頻信號數字化技術、抗混疊濾波、增益控制、鎖相技術、同步時鐘產生、電視信號亮色分離、彩色解碼等技術,這些關鍵技術為視頻信號的數字化處理提供了重要的基礎。
  3. This thesis focuses on the development of the dc / dc stage, which adopted the phase - shifted zero - voltage - switching ( zvs ) pwm full - bridge converter with two clamping diodes

    本文主要研究單相靜止變流的dc / dc級,它採用加二極體的移相控制zvspwm全橋直流變換
  4. Ppfc working principle, circular current and effects of clamping capacitor are studied in this paper in detail. because of the clamping capacitor, ppfc have some good features compared with ppc : reducing the fluctuate of the input current ; restraining the voltage spike of the power mosfet ; avoiding the bias - magnetic of the transformer

    由於電容的加入,相對于推挽電路而言,該拓撲具備了一些獨特的優點:減小了輸入電流的脈動:削弱了開關管的關斷電壓尖峰;有效抑制了變壓的偏磁。
  5. Firstly, the thesis briefly introduces the key techniques relating to the power module, and points out that the magnetic - integration technique can improve the performance further. secondly, the characteristics of active - clamp forward converter are analyzed, and the notion of flux - coupling is proposed to derive the im - fac converter

    論文首先簡要介紹模塊電源及主要的幾種關鍵技術,指出模塊電源中應用磁集成技術可進一步提高其性能;接著分析了有源正激變換的工作特點,提出磁通有效耦合的思路,並據此得出im - fac變換
  6. The analysis of ppf ’ s operation principle is introduced in detail in this paper. further more, the effect on the circuit operation is also analysed, which caused by clamping capacitance and different transformer leakage inductance value

    本文首先深入研究了推挽正激變換的工作原理,分析了穩態條件下的工作模態,同時分析了電容與變壓原邊漏感的大小對于工作模態的影響。
  7. Principle and application of the active voltage - clamped quasi - resonant soft switching inverter

    自動準諧振軟開關變頻原理和應用
  8. Because of the clamping capacitor and the interleaved structure, it has some good features compared with other flyback converters, such as : the topology is simple and can be realized easily ; the voltage spike of the power switch is availably restrained and without leakage - inductance energy loss ; the ripple of the input and output current is reduced, correspondingly, the volume and weight of the output and input filter is also significantly reduced

    由於電容的加入,相對于其他類型的反激式變換電路,該拓撲具有一些獨特的優點:電路結構簡單且易於實現;無需另加輔助開關管,實現了開關管的有源,抑制了開關管的電壓尖峰;提高了輸入、輸出電流的脈動頻率,減小了輸入及輸出濾波體積。
  9. The following is the main works and conclusions of this thesis. the novel upfc needs high power rate because it is generally used in high voltage transmission lines. after studied high - power converters and the literatures of upfc, the main circuit topology of novel upfc base on diode - clamping multilevel inverter is presented and the principle of using novel upfc to eliminate zero sequence and negative sequence currents is analyzed

    本文所做的主要工作及得出的主要結論如下:由於upfc一般用於高壓輸電線,其功率等級要求很高,在綜合研究大功率變換和upfc現有文獻的基礎上,提出了基於二極體多電平變換的新型upfc的主電路拓撲,分析了用其來濾出高壓輸電線非全相運行時所產生的零序和負序電流的原理。
  10. The clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. the operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. the effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined

    本文將諧振電感和變壓交換置,使變壓與滯后橋臂相連,這樣二極體在一個開關周期中只導通一次,同時零狀態時諧振電感電流較小,有利於提高變換效率和減小占空比丟失,本文分析改進后變換的工作原理,並與改進前的變換進行對比,討論隔直電容在不同置對變換工作的影響,確定一種最佳工程方案。
  11. Comparing with usual push - pull converter, the bias - magnetic can be retrained due to the clamping capacitance. but bias - magnetic can not be avoided

    推挽正激變換相比普通的推挽式變換,由於電容的存在,偏磁可以被抑制,但並不能完全消除。
  12. In this thesis, the tradition phase - shift full - bridge zvs dc / dc converter are analyzed, and then a new dc / dc full - bridge converter employing switches clamping in secondary side of transformer is proposed, and the converter employing saturable inductor clamping are studied, and zvs ( zero - voltage - switching ) can be easily achieve by experiment validate

    本文分析了一些傳統的移相全橋軟開關變換,提出了開關管dc dc全橋變換拓撲方案,並對飽和電感dc dc全橋變換進行了研究,並進行實驗驗證,從而解決了開關管的零電壓開關問題。
  13. By removing the two freewheeling diodes of the basic zvs pwm h - fb tl converter, a capacitor - clamped zvs pwm h - fb tl converter is obtained in this paper, and a new control strategy is proposed for the novel converter. the novel

    本文還提出了一種電容型zvspwmh - fbtl變換,它是在基本zvspwmh - fbtl變換中去掉兩只續流二極體得到的。
  14. A flexible electromagnetic hinge was used to realize the anchoring / lossening of the rotor and a piezoelectric pile as the driver and a flexible hinge was used to transform the linear motion of the piezoelectric pile into the rotary motion, thus a precise large - travel step rotary actuation was realized

    該驅動採用電磁杠桿柔性鉸鏈,以壓電陶瓷為驅動源,採用柔性盤鉸鏈把壓電疊堆的直線運動轉化成旋轉運動,實現了大行程精密步進旋轉驅動。
  15. Double forward converter ( dfc ) has many advantages, such as inherent anti - break - though capability, auto clamping the switch voltage etc. regarding the excellent reliability, dfc is one the most widely used topology in the industrial applications, especially for low output voltage area, such as telecommunication energy systems and welding power supply

    雙管正激變換具有內在抗橋臂直通的優點,能使開關管上的電壓自動在輸入電源電壓。由於其可靠性高,電路設計簡單,因而成為目前在工業中應用最普遍的變換結構之? ,特別是適合於輸出電壓較低應用場合,比如通信系統中的一次電源和弧焊電源。
  16. The main ideas of the thesis and the contributions to the resonant dc - link area are also listed in this chapter. a novel control strategy for the two - amplitude actively clamped resonant dc - link is proposed in chapter ii. it neglects the bus short circuit time adjuster and stabilizes the clamping voltage by a pi regulator so that the obtained link frequency is improved and the link losses are greatly reduced

    第二章針對雙幅控制技術在單相橋式電壓源逆變中的應用為範例進行研究,提出了直流母線無短路控制和通過pi調節環穩定電壓的雙幅諧振控制策略,進一步提高了母線振蕩頻率,減少了直流環節損耗。
  17. The converter not only keeps all the characteristics of the basic zvs pwm h - fb tl converter, but also eliminates the voltage oscillation and voltage spike across the rectifier diodes in both three - level mode and two - level mode, leading to a reduced voltage stress of the rectifier diodes

    本文在基本zvspwmh - fbtl變換中引入兩只二極體,無論是在三電平模式還是在兩電平模式,都可以消除輸出整流二極體反向恢復造成的電壓尖峰和振蕩,降低了輸出整流管的電壓應力。
  18. Based on studying of the multi - level technique, a variable frequency speed regulation system based on the diode clamped three - level inverter is introduced in this thesis in detail. it includes ac - dc - ac main power circuit, snubber circuit, isolated driving circuit by optical fibre, delay time circuit on powering, sampling circuit of current and voltage, protection circuit and etc. a distributed power system ( dps ) which can reinforced the system ’ s security is developed to solve the power supply of the whole system

    本文在研究多電平技術的基礎上,研製了一套以二極體式三電平逆變為基礎的變頻調速系統,包括:交-直-交主功率電路,緩沖電路,光纖隔離驅動電路,上電緩沖延時電路,電流、電壓采樣電路,保護電路等。
  19. Serial - parallel combined two - transistor forward converter is presented for high input voltage and high power application, and the operation principle of the topology is analyzed in this paper. all switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching. the difference of input capacitances, conducting voltage drop of switches, duty cycle and windings of the transformer of the combined converter influences the voltage balance of the input capacitors

    本文介紹了雙管正激變換的兩種穩定工作狀態,詳細分析了帶lcd無損網路的並?並組合式雙管正激變換的工作原理,該組合式變換中的開關管實現了零電壓關斷,並介紹了該電路拓撲的特點和lcd網路參數設計,採用pspice軟體進行了模擬和分析,最後,研製出一臺2 . 3kw樣機。
  20. The active - clamp network is used to clamp the voltage across power switches, and to achieve zero - voltage - turn - on of the power switchs, etc. detailed analysis and simulation of the converter are performed, from which some important results are obtained

    著重介紹了有源zvs軟開關電路的特點及其在升壓型直直變換中的應用,並給出了主要的模擬波形。
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