硬開關 的英文怎麼說

中文拼音 [yìngkāiguān]
硬開關 英文
hard switching
  • 硬 : 形容詞1 （堅硬） hard; stiff; tough 2 （剛強; 堅定; 強硬） strong; firm; tough; obstinate 3 （勉...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  1. High - frequency link power converters are receiving increasing attention. when the input frequency of ac - ac converter is quite high, such as 20khz or above, in order to make sure the converter switching action is restricted to the zero crossing point of the link voltage, the switching cycle becomes discrete pulse spectrums, however, the conventional pwm converters are ruled out because they would fail either to the efficiency or the low - distortion criteria

    當交-交變頻器的輸入頻率非常高，通常為20khz時，為了在零電壓條件下實現逆變器開關管的通斷，變換器的開關時刻必須選擇在高頻交流電壓脈沖為零時，這意味著變換器開關時刻在時間軸上成為不連續的點，而常規的硬開關pwm變換器是將開關時刻選擇在任意時刻。
  2. The restricted factor, hard switching of power semiconductor, has been introduced in the chapter two

    本文第二章介紹了制約逆變電源高頻化的主要因素?電力開關器件的硬開關工作狀態。
  3. At the end of this paper, on the base of hard switching the in the boost dc - dc converter, softswitching technology is proposed and discussed

    最後，在實現了以上硬開關的dc / dc變換器的基礎上，作者還對相應的軟開關技術進行了預研究。
  4. The advantage and disadvantage of two switching technology are discussed firstly based on soft switching technology and hard switching technology ‘ s work features

    本文從軟開關、硬開關工作特性出發，分別闡述兩種開關換流技術的優缺點。
  5. For the limitations of traditional pwm hard switching circuit, a kind of zero of pair soft switching technology is introduced and the switching loss can be cut down by it and the reliability of inverter in case of high frequency can be improved also

    由於傳統pwm硬開關電路的局限性，本文採用一種雙零諧振型軟開關技術降低開關損耗以及在高頻情況下提高整機的可靠性。
  6. Conventional hard switching technology has several flaws below : on and off loss, inductive off, capacitive on and diode recover problems. comparing with it, the loss of on and off decreases markedly, as the switches are on and off in zero voltage or zero current cases. and also the size of converter becomes smaller because of the higher of switching frequency

    傳統硬開關技術由於存在開通關斷損耗大、感性關斷、容性開通、二極體反向恢復等問題，與之相比，軟開關技術在零電壓或零電流條件下導通，開關損耗明顯降低，加上開關頻率的提高使得變換器的體積得以減小，這也是軟開關技術受到青睞的原因。
  7. In this thesis, a clamp passive loseless snubber is put forward for igbt inverters after analysing the dissipation of hard switching and soft switching with snubber. then theoretical analysis and simulation are been take to prove the work of the snubber. and a real inverter circuit and its auxiliary circuits are built

    本文在對igbt在硬開關和有緩沖電路的軟開關情況下的開關損耗進行分析之後，提出一種適用於igbt逆變橋的鉗位式無源無損緩沖電路，然後進行了理論分析和模擬分析，並製作了實驗電路和相關輔助電路。
  8. Now, the traditional h - bridge maglev chopper had been widely used in practice, which had much merit, such as the simple structure and reliable quality

    磁懸浮列車目前使用的是傳統的h -橋硬開關斬波器，其結構簡單、性能可靠。
  9. Control system design of soft - switch spot welding inverter base on dsp

    的軟開關點焊逆變電源控制系統硬體設計
  10. On the basis of analyzing the theory of hall element and combining with the relevant electric circuits of the hardware of the dpw, this paper gives a specific method of using hall element into pedal switch system of the dpw

    本文通過分析霍爾傳感器件的原理，結合數字攝影測量工作站硬體設備的相關電路，給出了把霍爾傳感器應用到數字攝影測量工作站腳踏開關系統中的具體方法。
  11. The design of high - voltage circuit based on pwm technology is briefly described. the closed - loop current control theory using analog instruments is fully discussed, followed which is that using digital instruments. it is an important part that the hardware and software design of the single chip - two arms and two chips - two arms current control circuits with a new chip applicable to digital current control system

    簡單介紹了基於開關電源技術的高壓電路設計；詳細講述了模擬穩流電源的閉環穩流原理，並在此基礎上討論了利用數字電路實現穩流的原理及可能性；選擇出適合數字穩流系統的新型晶元，完成了單片雙路穩流系統、雙片雙路穩流系統的軟硬體設計；給出了一種簡單易實現的比例?積分控製程序。
  12. For the safety, protecting sets were used to avoid the system from hitting with other wheel sets. optoelectronic switches were used to protect the movement units and sensors. self - detecti ng program could detect the status of sensors and wheel set

    系統安全性設計上採用擋輪裝置防止前後輪對碰撞在檢輪對，系統可靠性設計上硬體採取光電開關和接近開關裝置，防止運動超限或傳感器發生碰撞，軟體上採用自檢程序檢測各傳感器及板卡工作狀態，具有自動診斷功能。
  13. The precise measurement data can be useful for antenna design and slot coupling studding. this paper gives it ’ s deduction through reciprocity principle and the structure of the optically modulated scatterer system. an applied optically modulated scatterer system is designed and photodiodes are used as modulation module

    本文給出以互易原理為基礎的光調制散射器測量法的理論推導，並用光電二極體光導開關作為散射器中間部分的光調制單元，設計出了實用的光調制散射器微波測量硬軟體系統。
  14. Whereas rigid switching ca n ' t competent for the request because of much problem

    而硬開關由於很多問題而不能勝任。
  15. But the switching loss is increased as the switching frequency is improved and so the converter efficiency is decreased

    但隨著開關頻率的提高，硬開關的開關損耗增加，變換器的工作效率隨之下降。
  16. The last part is the result of the simulation and experiments in detail. compared with the traditional chopper, the novel chopper has its particular excellence, though we can find some shortage in it

    盡管新型的零電壓軟開關斬波器還存在著一定的不足，但是相對于傳統的硬開關斬波器，有其自身獨特的優點。
  17. This paper researches the digital characteristics of the welding power supply and the main circuit of the full bridge high power soft - switching. nowadays, welding machines usually apply the hard - switching as the topology, which causes the problem of higher loss and lower efficiency

    目前焊接逆變電源所應用的大功率電路多採用硬開關電路，這樣在功率器件導通和關斷過程中會產生很大的損耗，並且隨著逆變頻率的提高，損耗會增大，這樣就降低了焊機的效率。
  18. Switching loss and efficiency of the proposed resonant pole zvt three - phase pwm inverter are analyzed and discussed. results of calculation and testing of the prototype together with a hard - switching inverter with the same specification show that an improvement of 2 % ~ 3 % is obtained. based on the analysis of drawbacks of existing svpwm technique in resonant pole zvt three - phase pwm inverters, several improved svpwm methods are presented

    對提出的諧振極零電壓過渡三相pwm逆變器的開關損耗和工作效率，進行了深入的分析和討論，並針對原理樣機進行了理論計算和實際測量，並與相同規格的硬開關三相逆變器進行了對比研究，結果表明，採用提出的軟開關技術的原理樣機的效率可以提高2 % 3 。
  19. What have made a large amount of harmonic and high electro - magnetic interference ( emi ) has two reasons. the first reason is mainly the hard - switching pwm mode. the switch turns on at high voltage and turns off at high current in a short time ( ns ), which leads to a high du / dt and di / dt and emi

    其原因一是由於硬開關的pwm調節方式，電子開關速度很快（ ns數量級）在高電壓下導通，大電流下關斷，導致很高的du dt和di dt ，產生很強的尖峰脈沖，對周圍環境造成電磁干擾。
  20. In order to conquer the shortcoming of general pwm forcibly switch technology, it takes advanced soft switch technology to recede the switch spoilage of power component and will be benefit to improve the frequency of switch electroplating power and raise the control precision and smooth of the output voltage and current of the electroplating power. it designs a digital software electroplating power that bases on the 80c196mc and epld ( erasable programmable logic device )

    為了克服常規pwm硬開關控制技術的缺陷，本文採用先進的軟開關技術，大大降低了功率開關器件的開關損耗，提高了電鍍電源的開關頻率，改善了輸出電源電壓和電流的平滑性與控制精度，採用基於80c196mc單片機與可擦除可編程邏輯器件epld組成的全數字化控制系統，研製了一臺軟開關電鍍電源。
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