switching core 中文意思是什麼
switching core
解釋
開關磁心-
The single most important parameter in the design of a ferrite memory is the core switching time.
在鐵素體存貯器設計中，一個重要的參數是磁芯翻轉時間。 -
Security, too, is a key issue for switching the traditional private nforork to vpn. security of mpls wn architectur is analyzed thorouguy in this thesis, including septheion of address space and route, hiding of the mpls core smicture, resistance of attacks, impossibi1ity of 1abe1 spoofing
安全性是虛擬專用網能否取代傳統專用網的關鍵，本文對mplsvpn體系結構的安全性進行了深入分析，包括地址空間和路由的隔離、隱藏mpls核心結構、抵抗攻擊、抵抗標記欺騙等，從而得出mplsvpn與atm framerelay具有相同安全級別的結論。 -
In chapter 2, the nonlinear feature of iron core of transformer in switching power supply was studied. according to the characteristics of switching power supply, the topology structure of resonant converter was selected. the characteristics of out put voltage and current vs. frequency for the three kinds of resonant converter were analyzed and compared
在第二章中，研究了高壓開關電源中高壓變壓器的非線性特性，選擇了諧振變換器作為高壓大功率開關電源的電路拓撲結構，並對三種形式的諧振變換器的電壓及電流頻率特性進行了分析比較。 -
Based on the relevant theoretical researches, the loss property of the magnetic core material and winding were analyzed in this thesis. and 500 khz high frequency switching mode power supply transformer was made of pc40 magnetic core material for the first time in this thesis, which has good application perspective and can lead to enormous economic profits
本文在理論研究的基礎上，仔細分析了磁芯材料及繞組的損耗特性，首次採用pc40磁芯材料設計了500khz高頻開關電源變壓器，這在工程上有良好的應用前景和經濟效益。 -
Full bridge phase - shifted zero - voltage - switched converter ( fbps - zvs converter ) is a successful implementation for soft - switching and is easy for usage in dc / dc converter. the core technique to reach digitalization is dsp technique. in order to reach both high frequency and digitalization of converter, a fbps - zvs converter based on dsp control is proposed in this paper the converter worked on the high frequency of 150k. periphery hardware circuit is simple and its bulk is small. the converter realizes soft - switching over half load and get a high efficiency. it achieves the aim of digital control and error protect
實現數字化的核心是dsp技術。本文立足於將開關電源的高頻化與數字化相結合，具體研究內容為一種基於dsp控制的移相全橋軟開關zvs變換器，該變換器工作于較高的開關頻率（ 150k ） ，外圍硬體電路結構簡單、器件少、體積小；在半載以上實現了開關管的zvs開關，取得了較高的變換效率；實現數字化控制與故障保護，變換器取得了較好的性能效果。 -
The mpls technology was raised just in order to make the most of the switching technology in the core of the network and the ip routing technology on the edge of the network. before presenting the solution of the mpls, there are many integration model, the basic method adopted by them were all carry the control information from the ip router, and combine it with the transmition capability and the label switching of the atm switching machine, accordingly constructing a high speed and economic multi layer switching router. but, all these solutions can not communicate and just suit for adapting the atm as the second layer transmiting link, can n ' t work on other interface ( fr, ppp, and ethernet ), this is obviously conflict with the developing way of the based on packet of the internet
多協議標簽交換（ mpls ）技術就是為了綜合利用網路核心的交換技術和網路邊緣的ip路由技術各自的優點而產生的。在mpls技術方案提出之前已有的各種集成模型解決方案所採取的基本方法都是從ip路由器獲取控制信息，將其與atm交換機的轉發性能和標簽交換方式相結合，從而構建成一個高速而經濟的多層交換路由器。但是，各種方案彼此不能互通，而且僅適用於以atm作為第2層的傳輸鏈路，不能工作在其他多種媒體（如幀中繼、點對點協議、以太網）中，這與internet基於分組的發展方向相矛盾。 -
Our decades of core competence in pressure measurement technology and sensor systems was the starting point ; today switching solutions are developed based on all three technological approaches
我們幾十年在壓力測量技術和傳感器系統方面的核心能力只是開始，今天開關解決方案正是基於所有這三個技術途徑而開發的。 -
In the manufacture of communication equipment, we shall further raise the proportion of homemade products in the newly added fixed switching devices ( 99 % ) ; we shall lay emphasis on the science research for development of equipment of mobile communication and optical communication equipment and try to raise the proportion of independent intellectual property rights so as to make homemade equipment take the leading position in the domestic market and let the market proportion of newly installed equipment exceed 50 % and 30 % ( for the trunk network ) respectively ; we shall basically let the low - end equipment and border equipment of the data communication network be homemade products, and quicken our steps in nationalization of the core equipment ( the backbone atm switchboard and the high - bit routing device ) on the basis of introduction, digestion and assimilation of foreign advanced technology
對于通信設備製造業，將進一步擴大新增固定交換設備國產化的比例（ 99 % ） ；將重點加強移動通信和光通信設備的科研開發力度，努力擴大自主知識產權的比例，使國產化設備在國內市場中佔主導地位，新增設備市場佔有率分別超過50 %和30 % （骨幹網）以上；基本實現數據通信網路低端設備和邊緣設備國產化，在引進、消化、吸收國外先進技術的基礎上，加快骨幹核心設備（骨幹atm交換機、高比特路由器）的國產化步伐。 -
First in this thesis, calculation methods and work states of five high frequency switching mode power supply transformers in circuit form had been studied systematically. then the optimum square - approach - method was used to fix the pcv - f - bm curve of the pc40 magnetic core material. the values of m1, m2 and m3 in the high frequency formula pcv = m1 * bm2 * fm3 can be gotten and the experience values of these parameters during the traditional design was modified
首先本文系統研究了五種電路形式的高頻開關電源變壓器的工作狀態及其計算方法，然後用最佳平方逼近法對pc40磁芯的pcv f bm曲線進行擬合，求得了高頻下磁芯損耗pcv = m1 * bm2 * fm3公式中的m1 、 m2 、 m3值，修正了傳統設計中對這三個參數的經驗取值。 -
Based on the tsc reactive compensation equipment, a new low - voltage intelligent controller is designed, which can slove switched - capacitor without instantaneous rush current by means of zero - crossing triggering of scr components, and can realize auto - tracking reactive power, compensating and auto - switching scb. msp430f149 mcu is used as its core controller. it is shown that the algorithm in hand has the vantage of decreasing power loss and lowers of voltage and increasing the distribution system efficiency, for example power factor
該控制器以msp430f149為控制核心，暫態投切控制晶閘管過零觸發，避免了電容器投切時的電流沖擊；穩態運行時接觸器替代晶閘管，實現了無功補償的自動跟蹤和電容器的自動投切，解決了投切時的暫態電流沖擊和穩態可靠運行的難題。 -
Core losses are caused by an alternating magnetic field in the core material, thie losses are a function of the operating frequency and the total magnetic flux swing, the total core losses are made up of three main components, hysteresis eddy current and residuallosses, these losses vary considerably from one magnetic material to a - nother, applications such as higher power and hither frequency switching regulators and rf designs require careful core selection to yield the highestinductor perfor - mance by keeping the core losses to a minimum
鐵損是由於在鐵芯中的變更磁場院所造成，這個損失與操作頻率及總流動的磁通量有關，總鐵損由三個成份組成，磁滯損，過流損及殘留損，這些損失因磁性材料不同而異，在如高功率切換調整器和rf的設計需要小心選擇鐵芯種類以降低鐵損使電感的表現最佳。 -
The traditional layered network architecture already ca n ' t adapt the request of development to the network, ip over wdm is considered as the core architecture for the next - generation optical internet. optical burst switching ( obs ), which combines the merits of wavelength routing and optical packet switching while avoiding their defects, is focused on as a new data transmission and switching scheme to realize ip over wdm
傳統的分層網路結構已經不能適應對網路的發展要求， ipoverwdm將成為下一代網路的首選結構。光突發交換結合了光電路交換和光分組交換兩種交換技術的優點同時克服其缺點，是一種實現ipoverwdm全光網際網路的最有競爭力的交換技術。 -
In the core layer, some vendors are doing researches on equipments integrating circuit switching, cell switching and packet switching technologies
在網路的核心層，目前已經有廠家在致力於研究融合電路交換、信元交換和分組交換技術的設備。 -
As is the case now, many vendors are carrying out researches on " next generation network " ( ngn ), whose core vision is to use software - based soft switch to generate and manage flexible services by separating " switching " and " control "
目前已經看到很多廠家在致力於研究所謂的"下一代網路（ ngn ） " ，其核心思想是"交換"與"控制"機制分離，使用基於軟體的軟交換機（ softswitch ）實現靈活的業務生成和管理。 -
Abstract : this article briefly analyses the interrelationship between ip and atm, which are core network technologies, and describers multi - protocol label switching ( mpls ), a new generation network technology that converges ip and atm, and its role in the process of convergence of the internet and the telecom network
摘要：簡要分析了作為網核心技術的ip與atm間相互關系，闡述了作為兩者融合的新一代網路技術即多協議標記交換（ mpls ） ，以及其在因特網與電信網融合演進過程中的作用。
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