hard switching 中文意思是什麼

hard switching 解釋
軟開關
  • hard : adj 1 硬的，堅固的 （opp soft）。2 （身體）結實的；（組織等）健全的。3 （問題、工作等）困難的，費...
  • switching : 變換
  1. A novel bi - directional dc / dc converter was introduced in the dissertation, which based on refer much converter data. the soft switching, phase - shifted pwm and bi - directional dc / dc converter hang together, depress circuit switch ullage and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same, the converter have the virtue of structure compact, voltage and current stress small etc such as ordinary hard switch converter

    本文作者在查閱國內外大量雙向dc dc變換器資料的基礎上，採用一種新型雙向dc dc變換器的拓撲結構，把軟開關技術和移相控制pwm技術以及雙向dc dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件。
  2. 3 ide trough can connect dvd - rom that kind that compatible computer spend and hard disk at the same time, the hard disk is set as slave. operate switching over with the remote controller while using

    3個ide槽可同時接dvd - rom兼容電腦上用的那種及硬盤，硬盤設為slave .使用時用遙控器操作切換。
  3. 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。
  4. 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。
  5. 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。
  6. 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。
  7. Flexible switching ( fs ) is one strategy for complex system control, fs would be including of hard switching and soft switching, fs can be driven by both continuous variables and discrete events, at the same time, fs has the characters of diversity and hiberarchy

    柔性切換是針對復雜系統控制問題的一種控制策略，柔性切換可以同時包含硬切換和軟切換，其切換策略是既受連續變量驅動，又受離散事件驅動，而且切換具有多樣性和層次性。
  8. 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。
  9. 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。
  10. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  11. Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology

    數字音頻功放技術是近年發展起來的高效率音頻放大技術，該放大技術採用了過取樣、噪聲整形等數字音頻處理演算法和開關功率放大。採用該技術實現的電源調制器不但具備很高的效率，而且能高指標地放大包絡信號，是常規的電源調制技術無法實現的。
  12. And many young people are already switching to practical " hard " subjects

    許多年輕人已經開始轉向具有實用性的、 「過硬的」學科。
  13. 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。
  14. 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 。
  15. To dissolve the switching power supply electro magnetism pollution towards environment, soft - switching pwm mode has been used instead of hard - switching pwm mode and a pfc stage has been added normally

    消除開關電源對環境的電磁污染，一是要採用軟開關的pwm調節方式，二是在輸入端增加功率因數校正器，這是目前一般採用的辦法。
  16. 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。
  17. The problem is much more critical when the inverter frequency is high. in a welding machine, the main circuit with the technology of the soft - switching is much idealer than the hard - switching. firstly of all, by the theory of the soft - switching, this paper relatively analysis the advantages of the soft - switching and, with the help of the simulation software pspice, analyzes the main circuit of the full bridge shift - phased zero voltage zero current ( zvzcs ) soft - switching

    結合軟開關實現原理，本文首先對比分析了軟開關在提高效率、降低emi干擾等方面的技術優勢，通過pspice軟體模擬，分析研究了全橋移相零電壓零電流（ zerovoltagezerocurrent - - - - zvzcs ）軟開關電路，詳細介紹了該電路的軟開關實現過程，並給出了電路模型和關鍵元件的設計參數。
  18. Because it is difficult to collect catv toll, so the pay tv management control system is made. the addressable hub controlled by a single chip computer is the key part in the system. it has the function of switching the tv signal on / off, and it has been used widely in many cities. the structure and soft - hard ware design scheme in the addressable hub is introduced, which is a reference for design in future

    為了解決有線電視入戶收費難的問題，採用可尋址集線器為核心器件，構成了有線電視可尋址收費控制管理系統，達到了有線電視收費現代化管理的目的，單片機是集線器的關鍵控制器件，實現了對用戶信號埠的遠動開關功能，並得到了廣泛的推廣應用，對集線器結構和軟硬體設計方案進行了介紹，可為設計類似系統提供參考和借鑒。
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