low frequency transformer 中文意思是什麼

low frequency transformer 解釋
低頻變壓器
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • transformer : n. 使變化的人[東西]；【電學】變壓器；變換器；互感器。 polarity of transformer 變壓器繞線方向。
  1. Secondly, according to the character of this kind of harmonic, the solutions of power filter are deeply analyzed and an optimized topology for series connected hybrid power filter is obtained. by pwm technique, midfrequency transformer and the principle of the magnetomotive force ( mmf ) compensation, the problem to the transfer of the low - frequency harmonic power compensatory signal in the series apf is solved, in technique

    其次，針對acem系統特有的「電源諧波」特性，深入分析了濾波器方案，得到了一種適用於acem系統諧波抑制的串聯混合型有源電力濾波器優化拓撲結構，並採用了pwm調制技術、中頻注入變壓器和磁勢補償原理有效地解決了串聯apf中低頻諧波功率補償信號傳輸的難題。
  2. The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation

    二、在高頻變壓器原邊，當開關管接收控制信號脈沖列（經調制的spwm波列）導通時，在低頻調制信號的正半周或負半周內，施加在變壓器繞組上的是同一方向的電壓，變壓器磁芯中的磁通可能將級進地逐漸增加，導致磁芯飽和，造成磁偏或單向磁化，導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。
  3. The low voltage impulse method, frequency response analysis method and short - circuit reactance method, which can be used to measure and diagnose the deformation of power transformer winding, are introduced in the paper

    目前，監測變壓器繞組變形的方法主要有低壓脈沖分析法（ lvi ） ，頻率響應分析法（ fra ）和阻抗分析法。這些方法都需使變壓器退出運行，在變壓器離線情況下對變壓器繞組變形進行測量的。
  4. 1. nizn ferrite was developed for using in mini high frequency dc - dc converters and inductors. we measured and analysed the parameters of the nizn ferrite, which we concern about when designing the dc - dc converter. 2. the low loss sample of nizn ferrite were chosen for design - optimization of the high frequency transformer. based on the relevant theoretical researches, the loss properties of the magnetic core material and winding were analyzed in this thesis

    因此，以nizn功率鐵氧體材料為開關電源芯材為基礎，並優化各種開關電源的設計已成為國際上的熱點和技術瓶頸，本論文正是以上述背景為研究目標而開展工作的，主要進行的工作和創新有: 1 .對研製的新型高頻低功耗的功率nizn材料進行參數的測試，並針對dc - dc變換器設計關心的參數對芯材特性進行了分析，選擇在特定頻率下，功耗較小的nizn材料磁芯樣品作為變壓器優化設計的預備磁芯。
  5. In order to reduce the size and weight of the transformer, as the development of high frequency switching technology, it is possible that the high frequency transformer replaces the low frequency transformer

    為了克服低頻變壓器笨重、體積大等缺點，隨著高頻開關技術的不斷成熟，去掉低頻變壓器成為可能。
  6. By the development of high frequency switch, low frequency transformer has been withdrawn from many domains. but in the domain of ups, linear power amplifier and the inverter output low frequency ac, for the purpose of isolation and change voltage, there is no choice but to use low frequency transformer

    高頻開關技術的發展，使工頻變壓器從許多領域中退了出來，但是在需要隔離的ups不間斷電源、數碼線性功率放大器、要求輸出低頻正弦波的dc ac變換器等許多領域中，為了隔離或變換電壓的需要，以至不得不保留了低頻變壓器。
  7. The basic technique to achieve the target is that raising the frequency of the power supply, mainly of dc - dc converter. there are several key techniques by which we carry out the high frequency of the dc - dc converter. they are high frequency and low loss ferrite technique, design - optimization of the high frequency transformer and circuit technique, and install of dc - dc converter technique

    當前實現開關電源高頻化這一目標的關鍵技術，有採用鐵氧體材料研製dc - dc變換器技術，高頻變壓器的優化設計，電路的優化設計，高頻dc - dc變換器的製作與安裝等技術。
  8. Abstract : the uni - polarity phase - shifted controlled voltage mode ac / ac converters with high frequency ac link based on forward converters are firstly proposed and deeply investigated. this kind of converters is constituted of input cycloconveter, high frequency transformer, output cycloconverter, input and output filters. it includes full bridge - full wave mode and full bridge - full bridge mode topologies, the former is suit for low output voltage field and the later is suit for high output voltage field

    這類變換器由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成，包括全橋全波式、全橋橋式兩種電路，前者適用於低壓輸出變換場合，後者適用於高壓輸出變換場合。
  9. The circuit structure which can transfer one unregulated sinusoidal voltage with high thd into another regulated constant frequency sinusoidal voltage with low thd is constituted of input cycloconverter, high frequency storage transformer, output cycloconverter, input and output filter

    該電路結構由輸入周波變換器、高頻儲能式變壓器、輸出周波變換器以及輸入、輸出濾波器構成能夠將一種不穩定劣質的正弦交流電變換成另一種同頻率穩定的優質正弦交流電壓。
  10. Then novel circuit structure and circuit topologies family of current source ac / ac converters with high frequency ac link, based on flyback converter, are proposed. the circuit structure which can transfer one unregulated sinusoidal voltage with high thd into another regulated constant frequency sinusoidal voltage with low thd, is constituted of input cycloconverter, high frequency storage transformer, output cycloconverter, input and output filter. the circuit topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits

    本文提出了基於反激flyback變換器的電流源高頻交流環節ac ac變換器電路結構及其拓撲族，該電路結構由輸入周波變換器、高頻儲能式變壓器、輸出周波變換器以及輸入、輸出濾波器構成，能夠將一種不穩定劣質的正弦交流電變換成另一種同頻率穩定的優質正弦交流電壓；該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式等四種電路。
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