high-frequency switch 中文意思是什麼

high-frequency switch 解釋
高頻電門
  • high : adj 1 高的〈指物，形容人的身高用 tall〉；高處的；高地的。2 高級的，高等的，高位的，重要的。3 高尚...
  • 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。
  • switch : n 1 （樹上折下的）細樹枝；軟鞭子；鞭打。2 假發；（尾巴上的）毛簇。3 〈美國〉【鐵道】道岔扳子，軌...
  1. 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。
  2. High frequency switch - mode rectifier for telecommunication

    通信用高頻開關整流器
  3. High voltage shunt capacitor installation is comp - rised of capacitor cabinets or steel racks capacitor, special fuses for capacitor overload protection, capaci - tor discharge device, air - cored reactor which is applied to restrain surge current and high frequency harmonic, zno arrester without gaps for overvoltage - limiting and high voltage vacuum switch etc. capacitor cabinet is

    高壓並聯電容器成套裝置主要由電容器櫃或鋼架電容器電容器過負荷保護專用熔斷器放電裝置專用放電線圈或電壓互感器，抑制涌流限制高次諧波的空芯電抗器和限制過電壓的無間隙氧化鋅避雷器及高壓真空開關
  4. With the development of electronic technology in the field of high - frequency and high - power, power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch. with the increasing of the operating frequency ( > 200khz ), the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters. especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ), the energy loss caused by the switch process will badly affect its efficiency

    隨著電力電子技術進一步向高頻的大功率用電領域發展，功率mosfet在各種電力半導體器件中的重要地位日益顯著，使用功率mosfet作為開關器件的功率轉換電路也日益增多，但隨著器件開關頻率的提高（大於200khz ） ，由器件極間電容引起的能量損耗將會影響到功率轉換電路的能量傳輸效率，特別是在以mosfet作為開關器件的高頻感應加熱電源中（工作頻率可達兆赫） ， mosfet在開關過程中的能量損耗嚴重影響到電源的效率，因此如何減小開關器件的損耗提高高頻功率轉換線路的效率成為電力電子技術領域的重要研究課題之一。
  5. This paper analyzes the unitary structure and work principle of the power source and explains the work principle of scr pre - regulate circuit, serial voltage regulate circuit and high frequency switch circuit

    文章中分析了電源的整體結構和工作原理，並詳細的講述了預穩壓電路、線性串聯穩壓電路、功率推挽變換電路等電路的工作原理。
  6. The leading product has the automobile sound coupling, theautomobile antenna plug, meets the plug - in unit, the electronicelectric appliance group of lines, f plug ( high frequency tuner ), lightly touches the switch, the loudspeaker wiring column, the powerswitch, the earphone receptacle and so on, the product widely appliesto the vehicle carries the video and music, dvb domain and so onbox, domestic electric appliances, computer, automobile, communicationequipment

    主導產品有汽車音響連接器、汽車天線插座、接插件、電子電器線束、 f頭插座（高頻頭） 、輕觸開關、喇叭接線柱、電源開關、耳機插口等，產品廣泛應用於車載影音、機頂盒、家用電器、計算機、汽車、通訊設備等領域。
  7. Pin diode switch is a kind of widely used microwave semiconductor control device. high frequency, broadband, multi through switch are the places where design difficulties lie

    Pin開關是一種廣泛採用的微波半導體控制器件，高頻、寬帶、多擲一直是其設計難點所在。
  8. The electric power harmonic comprehensive control system with low cast and high security is applied in this article. it adopts that sourced compensation links with non - sourced compensation herewhich the former is realized by high frequency pwm control technology and the latter is carried out by crystal switch formed by non - flow and over - voltage. it can realize stepless modulation with imaginary power, mightiness compensation of harmonic and negative electricity, and circuitry consumption debasing are achieved

    提出採用有源補償與無源補償相結合的電力諧波綜合治理技術及裝置，無源部分採用無涌流和過電壓的晶閘管控制電容器技術實現，有源部分採用高頻pwm控制技術實現，成本低、可靠性高、可實現無功功率的無級調節、強力補償諧波電流和負序電流，降低線路損耗。
  9. It can be used to fabricate display devices, high frequency filters, emitting diode, lasers and high - speed optical switch. therefore, it has great uses in both civil and military fields

    它可用與製作發光顯示器件、高頻濾波器、發光二極體、激光器、高速光開關等器件，在民用及軍事領域都有著重要的用途。
  10. This inverter consists of a two - quadrant dc / dc converter and an inverted bridge in series, which has a lot of merits such as : the amount of the power switch working in high frequency situation is reduced ; it has not the risk of short - circuit ; the volume and the weight of the filter is minished

    本文研究了一種基於dc dc變換器拓撲逆變器，該逆變器是由一兩象限的dc 0c變換器和一逆變橋級聯而成，具有高頻工作的功率管少、無直通、濾波器體積重量小、控制簡單等優點。
  11. Development of 3 kw dc dc inverter with high - frequency soft - switch

    高頻軟開關直直變換器的研製
  12. So it is an important research in the field of the electronic technology to reduce the loss caused by the switching device and to improve the efficiency of high frequency power converters. this paper primarily focuses on the optimization of the mosfet parasitic capacitance so as to reduce the switching loss and improve the efficiency of power transforming in converters using mosfet as switch

    通過分析mosfet器件的開關特性，根據輸出電容c _ （ oss ）給器件引進的動態損耗來確定優化器件輸出電容西安理工大學碩士學位論文l變化曲線的目標函數，運用可行方向法求解帶約束條件的最優值，確定出優化的輸出電容人變化曲線。
  13. Usually series mode is used in low frequency circuit while bypass mode is used in high frequency circuit, series mode micro - switch with cantilever structure is similar to an fet, when voltage is applied on gate, and the fet will be turned on between source and drain

    有靜電電壓作用在梁和底面電極時，梁發生偏轉，在源極和漏極之間實現導通，常用於自控和通信系統的信號通路空氣橋旁路開關主要用於微波段信號的通路。
  14. In order to resolve the problem of fast switching on or off, intellectual control and smaller bulk of high voltage power required in er valve, a nc high - voltage power source is designed and made using singlechip technology and high frequency switch power technology,

    針對電流變閥對高壓控制電源要求的快速通斷及智能控制和體積小的特點，採用單片機技術與高頻開關電源技術，設計製作了一臺用於電流變閥控制的數控高壓電源裝置。
  15. A new single - phase rectifier circuit with high - frequency flexible switch

    一種新型高頻軟開關型單相整流電路
  16. Taking single four - quadrant power switch mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of current mode ac - ac mode ac / ac converters with high frequency link are investigated. the output characteristic curve and the design for the key circuit parameters are given

    以單四象限功率開關式拓撲為例，分析研究了電流源交?交型高頻環節ac ac變換器的工作模式、穩態原理與電壓瞬時值反饋控制策略，給出了變換器的關鍵電路參數的設計準則和變換器的外特性曲線。
  17. The asi parallel system in this thesis is presented based on common voltage loop control. the system is made up of five paralleled modules based on high - frequency zero - voltage - switch 1kva asi

    本文採用公用電壓外環方案，實現了五臺1kva基於高頻零電壓軟開關航空靜止變流器模塊的並聯輸出。
  18. The system can display out voltage and out current. 80c198 microcomputer is used as the control circuit of this power source. the serial voltage regulate technology, high frequency switch technology and scr pre - regulate technology are adopted in the main circuit

    電源的控制電路選用80c198單片機為核心，主電路採用線性串聯調整穩壓技術、高頻開關技術和可控硅預穩壓技術。
  19. The direct digital frequency synthesizer is a kind of fully digitized frequency synthesizer, which consists of the phase accumulator, the sine look - up table, the digital to analog converter and the low band filter. it is of high frequency resolution, fast frequency switching speed, low phase noise, the ability to switch frequencies while maintaining constant phase, and the ability to producing arbitrary waveforms

    直接數字頻率合成器是一種全數字化的頻率合成器，由相位累加器、波形rom 、 d a轉換器和低通濾波器構成， dds技術具有頻率解析度高、頻率切換速度快、頻率切換時相位連續、輸出相位噪聲低和可以產生任意波形等優點。
  20. 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。
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