通用整流電源 的英文怎麼說
中文拼音 [tōngyòngzhěngliúdiànyuán]
通用整流電源
英文
universal mains unit- 通 : 通量詞(用於動作)
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 整 : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 源 : 名詞1. (水流起頭的地方) source (of a river); fountainhead 2. (來源) source; cause 3. (姓氏) a surname
- 通用 : be in common use; be current; apply or be used universally
- 電源 : source; current source; electric source; power pack; power supply; power source; source of power ...
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1. ultra compact metal housing : small and rugged, stores easely in any tool box, briefcase or glove compartment. 2. low battery shutdwn : automatically detect low.
因為我們通常是將220伏交流電源整流變成直流電來使用,而逆變器的作用與此相反,因此而得名。This article combines the theory and reality ; try to explore the major effects and changes of relationship between consumers and business from the retail aspect, and tries to show how to gather all the resources efficiently with the real case of shijiazhuang guoda group, how they developed the multiple shop to a sale station, a service station, a circulation station and an information station for merchandise, how they made the geographical shop well - combined with the virtual online sale and improved the competition power of the company, the main objective is to share the experience with the sister industry
本文通過理論與實際應用相結合,從流通創新角度論述電子商務實現了消費者和企業之間信息的快速互動式溝通,使流通業發生了深刻變革,對整個流通業產生的革命性影響,並以石家莊國大集團公司為案例闡述了如何有效進行資源整合,將連鎖便利店發展成為商品的銷售站點、服務站點、物流站點和信息站點的快捷便利的服務平臺,將地理性店鋪網路與虛擬性網上銷售有機結合,提升了企業核心競爭力,旨在為同業提供可借鑒經驗。The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail
首先,在闡述i / q正交調制基本原理的基礎上,通過對誤差矢量和鄰近通道功率泄漏的詳細分析,定性、定量地討論了各種非理想電路因素(如相位不平衡、幅度不平衡、直流偏差等)對調制器性能的影響;其次,介紹了鎖相環的工作原理和基本組成部分,包括鎖相環的設計和環路濾波器的設計,特別詳述了電荷泵鎖相頻率源;第三,介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後,對整個直接射頻調制系統進行測試,結果基本上達到了課題要求。This thesis elucidates and analyzes the current and prospective competition background including the corresponding reasons, and reveals the rigorous challenge of haec. as for the countermeasure of marketing management, this thesis sets about from illustrating the environment and inner resource of haec, and demonstrates how to create satisfactory circumstance for haec by advanced marketing theory and successful practice, such as ameliorating training and stimulating system of talents, etc. besides, haec should pay more attention to set up strategic league with other organizations or corpora tions in order to create better marketing management environment
同時通過家電企業之間以及家電企業與其它企業或組織之間的戰略聯盟來優化我國家電企業營銷管理的外部環境;在家電企業內部,在塑造優秀營銷團隊的同時、通過以信息技術作為支撐的電子商務戰略,配合建立和完善科學規范的營銷管理流程來提高企業資源的利用效率,優化價值鏈,從而整合企業內部的營銷管理資源,為全面提升我國家電企業營銷管理水平創造積極的條件。Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元,採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用,針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術,同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標,最後給出了一個整個傳送鏈路的功率預算。The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current
傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換,導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量,功率因數變低(通常只有0 . 65 ) 。New and consistent competition advantages all result from custom ' s satisfactory and changing innovations. a thorough procedural reproduction contains three phrases. first of all, by market researching, inter - communication and other methods, we need to find problems and begin to rearrange all procedures ; secondly, by reorganizing the management procedure of valued customers, the structure of luzhou telecom corp., front and back sla service protocol and kpi performance evaluation items, it support, we can correct problems after segmental test
一個完整的流程再造工作包括三個階段:第一,通過市場調研、內部訪談等對所有流程進行梳理,找出問題,確定重點優化流程;第二,設計瀘州電信新的大客戶管理流程和組織結構、前後端sla服務水平協議和kpi績效考核指標、 it支撐,通過局部試用,發現問題,重新調整;第三,設計計費與賬務處理流程、網路資源調配流程、滾動性網路投資流程、 it支撐,內部推廣,全面推進企業的流程再造工作。According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求,課題期間研製了下位機系統硬體和軟體,開發了上位機監控軟體,其中所作的具體工作包括:測量原理的研究和在系統中的實現,在本次設計中用三種方法來進行水位測量,分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法;主控晶元的選擇,我們選用了高集成度的混合信號系統級晶元c8051f021 ;實現了信號的採集和處理,包括信號的轉換和在單片機內的運算;高集成度16位模數轉換晶元ad7705在系統中的應用,我們完成了它與單片機的介面設計及程序編制任務;精確時鐘晶元ds1302在系統中的應用,在此,我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬,該晶元的應用給整臺儀器提供了時間基準,方便了儀器的使用;另外,針對研製任務的要求,還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測,該部分的實現是通過採用ad421晶元來完成的,本設計中完成了ad421與單片機的spi介面任務,協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系,並完成了程序設計;與上位機的通信介面設計,該部分通過兩種方法實現: rs232通信方式和rs485通信方式;系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。Hanno factory, shindengen electric manufacturing is located in an area of mountains, forests, and clean water, and as such is engaged in the following activities designed to maintain a clean and beautiful natural environment for future generations, while at the same time sustaining a society in which continued
位於山水、綠樹環繞的城市飯能的新電元工業飯能工廠通過包括以電子器件產品、通信用整流器、信息產業設備用電源、電子零件、集中管理系統、螺線管等開發、設計為主體的生產在內的業務活動,為能將豐富的自然留給未來而保護自然,以建立能夠堅持持續發展的社會為目標開展以下活動。Water, and as such is engaged in the following activities designed to maintain a clean and beautiful natural environment for future generations, while at the same time sustaining a society in which continued development is possible, and continuing the present course of development and design of electronic devices,
位於山水綠樹環繞的城市飯能的新電元工業飯能工廠通過包括以電子器件產品通信用整流器信息產業設備用電源電子零件集中管理系統螺線管等開發設計為主體的生產在內的業務活動,為能將豐富的自然留給未來而保護自然,以建立能夠堅持持續發展的社會為目標開展以下活動。Graded doping is adopted in both sides of the junction ( double graded doping ). this results in a strong ( drift ) electric field throughout the whole active layer. this field will accumulate minority carriers effectively and the whole internal quantum efficiency is increased
漂移場的形成是通過mbe技術,在結的兩側都採用梯度摻雜(即雙梯度摻雜) ,從而在整個有源層都建立起一個強的(漂移)電場,有效地利用載流子在電場作用下的漂移作用收集少數載流子,使得總內量子效率得以提高。The dc distributor shelf play a important role in transformer substation, power plant, big and middle plants etc. it supply mainly to the controled, protected and communicate equipment, automechanism, manipulaor and adjusted machine. the same time it may as accident lighting power supply, so its performance and reliability affect directly the running safely of whole power supplying system
直流電源屏作為供電電源在變電站、發電廠、大中型廠礦企業等供電系統中佔有很重要的地位,主要用於向控制、保護、通信設備、自動裝置操作機械和調節機械的傳動機構供電,同時還可以作為獨立的事故照明電源,所以其性能及可靠性直接影響到整個供電系統的正常安全運行。The power supply module is made of sg3525a, which supply current for pipeline cp. the data collection module is made up of single chip, which collect the nature eroding voltage, protection voltage and current on the spot and transport these data to pc by com. pc constitutes master control module, which inspects work state of the whole cp system, control the system start and exit, display data out of the single chip
本系統採用sg3525a晶元構成開關電源模塊,提供管線陰極保護電流;採用單片機系統做為數據採集模塊,採集管線現場自然腐蝕電位、保護電位、保護電流等數據,並把採集的數據通過串列口送往pc機; pc機為主控模塊監控整個電源系統的工作狀態,控制整個模塊的投入和退出,完成人機對話;利用顯示器顯示系統輸出電壓、電流。On the basis of the overall strategy of “ becoming one of the world top 500 companies ”, set by the headquarters of china united telecommunications corporations ltd. ( china unicom ), and urged by the new economic and market conditions, china unicom ( jilin ) implemented bpr in its operation, maintenance, and service ( oms ) system. with the continuous evolution of the bpr theory, bpr, tested by practice, has gradually shifted its focus from overall reengineering to optimization and improvement of business enterprises, reaching a more rational and more comprehensive stage with an increased operability and success rate. using “ the methodology of systematic redesign ”, a study on business process reengineering in the operation, maintenance and service system in china unicom ( jilin ) makes an analysis on the present process and, based on the present process, systematically creates a new process for oms system in china unicom ( jilin )
本文以目前企業界非常關注的熱點:業務流程再造( businessprocessreengineering ,簡稱bpr )在電信運營企業的運用為課題進行深入研究,在分析大型電信運營商運維體系所面臨的挑戰、運維理念變更的重要性和運維組織管理需要改革調整的必要性基礎上,分析研究吉林聯通運維服務體系管理流程的模式以及所存在的弊端,運用業務流程再造( bpr )理論對吉林聯通運維體研究,文中以bpr理論中的『系統化改造法』為指導思想, 『業務流程再造7階段模型』為理論模型對吉林聯通運維服務管理體系進行流程再造,整合網路管理、資源管理、作業調度系統之間的關系。The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods
總結分析了實現高精度開關電流濾波器設計的各種實用方法,包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法,並對左分解法加以整理改進,提出一種更為簡潔的設計結構,通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。Four network platforms - qq, qq. com, qq game and paipai. com created and their vast communities respectively formed, we have primarily set up a new business layout and industry model - online society. tencents diversified products satisfy users multi - requirements in their daily life, such as qq. com, qq im and foxmail acquired in early of 2005 for transmitting information and obtaining knowledge ; personalized blog, q - zone together with our bbs, chatting room and group discussion function making group communication and sharing resources more easily ; characterized showing and entertainment being satisfied by qq show, qq pet, qq game and qq music radio tv on live, the special wireless value - added service, color ring and message just for those mobile users ; an c2c website, paipai. com being designed and developed for our tencent s users, now it is already combined with other products seamlessly
在滿足用戶信息傳遞與知識獲取的需求方面,我們有qq . com門戶qq即時通訊工具以及年初收購的foxmail電子郵件滿足用戶群體交流和資源共享的方面,騰訊推出的個人博客qzone將與我們訪問量極大的論壇聊天室qq群相互協同在滿足用戶個性展示和娛樂服務方面,騰訊擁有非常成功的虛擬形象產品qqshow qqpet寵物和qqgame游戲qqmusic radio livetv音樂電臺電視直播產品,另外對手機用戶提供彩鈴彩信等無線增值業務在滿足用戶的交易需求方面,專門為騰訊用戶所設計開發的c2c電子商務平臺拍拍網已經上線,並和整個社區平臺無縫整合。Railway fixed equipment. modular power supply units for systems for signalling equipment, telecommunications equipment and computer equipment. rectifier cabinet
鐵路固定設備.信號設備通信設備和計算機裝置用模塊化電源裝置.整流器箱The most effective converter that fits for such kind of application is a well - known full - bridge three - phase vsi ( voltage source inverter ) converter with igbt ( insolated gate bipolar transistor ) modules, which can be used in wind power generation system or other general purpose utilizations such as asd ( adjustable speed drive ), active rectifiers, ac power supplies, and so forth
最適合的變換器就是igbt (集成門極雙極性晶體管)三相全橋電壓源變換器,這種拓撲結構的變換器可以應用到風力發電系統或者其他通用的場合,比如asd (變速驅動)系統、有源整流、交流電源等等。Dpj88 - 380 ac distribution panel is a part of communication power supply, applies to all kinds of large cappacity distribution user. it can be used not only for the rectifier, but also for the ac lightingicair - condition and other devices. the panel is used to connect the mains supplyicoil engine power supply and ac load, it can be suplied by two ways of mains or by two ways of mains and spare generator at the same time. it is flexible and cnvenient
380型交流配電屏是通信電源系統的一部分,使用於各種大容量配電用戶,其不僅考慮了整流器的需要,同時也兼顧了交流照明、空調和其他設備的用電要求,是連接各路市電、油機電源和交流負載的常用設備dpj88 - 380型交流配電屏,可由兩路市電同時供電,使用靈活方便。Railway fixed equipment. modular power supply units for systems for signalling equipment, telecommunication equipment and computer equipment. rectifier module
鐵路固定設備.信號設備通信設備和計算機裝置系統用模塊化電源裝置.整流器模件分享友人