電源選擇開關 的英文怎麼說

中文拼音 [diànyuánxuǎnzháikāiguān]
電源選擇開關 英文
power selection switch
  • 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
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 電源 : source; current source; electric source; power pack; power supply; power source; source of power ...
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  1. In the sub block circuit design, the contents that the author had introduced include : the principle of band gap voltage reference and the design technique in low power supply ; the analysis of spike pulse noise rejection, frequency divider and dead time in oscillator and control circuit ; the selection of the width and length ratio of four switches and 2x / 1x mode change point in driver and mode selection circuits

    在子電路設計中，作者比較深入分析的內容有:基準電路的原理及低電源電壓下基準電路的設計;振蕩器和控制電路中尖峰脈沖噪聲抑制、兩分頻電路及死區時間設定;驅動及模式選擇電路中開關管的寬長比的選擇及模式轉換點的設計。
  2. Switch to choose reading lamp, flash alarm or turn off

    推動開關可選擇開啟閃燈報警或書燈、關閉電源。
  3. Power switches, selector switches, motor protective appliance

    主電源開關選擇開關馬達保護器
  4. Firstly. operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized. then, the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit. in this part, operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant. moreover. the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well

    文中首先介紹了感應加熱電源的工作原理並綜述了國內外的研究現狀。接下來分析並制定了電源主電路的構成方案：在對比幾種功率調節方式的基礎上選擇了不控整流加斬波調壓作為直流部分。在這部分里，重點研究了一種軟開關buck變換器，通過分析各階段的工作原理說明了開關器件如何工作在軟開關狀態；對于逆變器部分，在比較了串、並聯逆變器優缺點的基礎上選擇了串聯諧振逆變器，並詳細分析了串聯逆變器的工作原理，提出了最佳死區的計算方法。
  5. In this paper, research and manufacture work on high efficiency high power density high - voltage high - power dc power is undertaken on the basis of basic theories and past production. by inquisition the basic theory and project of sreies - parallel resonant converter witch is a soft - switch converter was selected to outspread research and design work

    本文是在吸收前人研究成果的基礎上，理論聯系實際，針對高效、高功率密度、高壓大功率直流電源展開的研製工作。在經過大量的實際調研工作的基礎上，選擇了一種軟開關變換器（移相控制的串-並聯諧振變換器）的技術方案，並圍繞該方案展開理論研究和實際的設計工作。
  6. Adjusting digital potentiometer in controlling circuits of sps and capacitor charging and discharging circuit separately with industry control computer ( icc ), the peak value and repeat frequency of output pulse can be adjusted separately. controlling relays to choose different capacitors with icc, the width of output pulse can be adjusted

    利用工控機分別調節開關式穩壓電源控制電路和電容充放電控制電路中的數字電位器，就能分別調節輸出陡脈沖的幅值和重復頻率；利用工控機控制繼電器選擇不同的充放電電容，就能調節輸出陡脈沖的脈寬。
  7. We also studied some characteristics of sidagating effect using mesfet fabricated in planar boron implanted process including photosensitive, hysteresis, influence of sidegating effect on mesfet threshold voltage, influence of drain - source voltage on sidegating threshold voltage, influence of exchanging drain and source electrode on sidegating threshold voltage, relation between sidegating threshold voltage and the distance between side - gate and mesfet, relation between sidegating effect and floating gate, and so on

    本文還採用平面選擇離子注入隔離工藝，開展了旁柵效應的光敏特性、遲滯現象、旁柵效應對mesfet閾值電壓的影響、 mesfet漏源電壓對旁柵閾值電壓的影響、漏源交換對旁柵閾值電壓的影響、旁柵閾值電壓與旁柵距的關系、旁柵效應與浮柵的關系等研究。
  8. 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。
  9. The design of high - voltage circuit based on pwm technology is briefly described. the closed - loop current control theory using analog instruments is fully discussed, followed which is that using digital instruments. it is an important part that the hardware and software design of the single chip - two arms and two chips - two arms current control circuits with a new chip applicable to digital current control system

    簡單介紹了基於開關電源技術的高壓電路設計；詳細講述了模擬穩流電源的閉環穩流原理，並在此基礎上討論了利用數字電路實現穩流的原理及可能性；選擇出適合數字穩流系統的新型晶元，完成了單片雙路穩流系統、雙片雙路穩流系統的軟硬體設計；給出了一種簡單易實現的比例?積分控製程序。
  10. 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。
  11. Remember the following words and expressions : e. g. multimeter ； circuit ， current ； voltage ； resistance ； digital multimeter ； analogue multimeter ； analogue multimeter scales ； zero adjustment control ； zero adjustment control for resistance ranges ； measurement ranges switch ； transistor test socket ； meter probe ； positive terminal ； negative terminal ； anode ； cathode ； red lead ； black lead ； power supply ； connect in parallel ； connect in series

    記住萬用表、電路、電流、電壓、電阻、數字萬用表、模擬萬用表、表頭、機械零位調整器、歐姆零位調整器、量程選擇開關、晶體管插孔、表棒、正接線端、負接線端、陽極、陰極、紅導線、黑導線、電源、並聯、串聯等常用英文單詞，並逐步掌握。
  12. For instance, energy - saving lighting and electrical switches, nontoxic toys, biodegradable diapers, low - radiation electronic appliances, recyclable tools, water - saving bathroom fixtures, ozone - friendly refrigerators and air - conditioners, cosmetics made of natural compounds, non - petroleum based detergents, and organic vegetables and fruits may be used. in addition, installing kitchen garbage disposal systems and making living environments green and beautiful are also important steps. such measures can not only minimize the negative impact of pollution on the environment and health, but also enhance the quality of life

    例如選擇省電的燈具安全的開關無毒的玩具可分解的尿布低輻射的電子設備簡易的資源回收工具省水衛浴設備環保冰箱冷氣含天然成份的化妝品非石化洗劑有機蔬果等，並進一步做廚餘處理及房舍內外綠化美化，如此不但可以降低對環境負面的影響，減少對己身健康的傷害，同時更可以提高生活品質，何樂不為呢？
  13. Applying singlechip in the receiving system, this method can make the best of singlechip ' s resource of software and hardware and provide a reasonable and cheap resolving project for wireless remote control

    在發射系統中採用十進制至8421碼編碼器實現對開關按鍵編址，從而對受控電路進行選擇控制；在接收控制系統中引入單片機，通過充分利用其軟、硬體資源，為無線電遙控提供了合理、廉價的解決方案。
  14. The system selects micro control unit and programmable logic device as the core of controller, gsm terminal module as communication device, gps as position equipment, a / d sampling for voltage and current checking, solar battery as power supply, switch dc - dc as power voltage conversion, and so on

    以微處理單元與可編程邏輯器件為核心搭建系統控制器，選擇gsm無線通信模塊實現系統通信，全球定位系統實現水標燈定位， a d采樣與轉換實現電壓電流檢測，太陽能電池為系統供電，開關型dc - dc實現電源電壓轉換。
  15. Based on a large number of literature references, combining the facts of chinese telecommunication operating enterprises development and the long - term practice of author in telecommunication administrative department, the article expatiates on related theories of strategic management in detail ; analyzes the development status in quo and existing primary problems of chinese telecommunication operating enterprises ; conducts strategic analysis and evaluation to chinese telecommunication enterprises with swot method, and analyzes the trade competition condition of chinese telecommunication operating enterprises from the point of industrial structure ; puts forward generic competitive strategy, stock system reform, multiple operation strategy, marketing strategy, enterprise innovation strategy and multinational operation strategy for choice by chinese telecommunication operating enterprises ; and puts forward strategy implementation measures in three aspects including starting up business process reengineering ( bpr ) as soon as possible, gradually establishing flexible organization under dynamic competitive condition, and actively driving development and management of human resource in knowledge enterprises

    本文結合我國電信運營企業發展的實際，及本人長期在電信管理部門工作的實踐，在查閱了大量文獻資料的基礎上，對戰略管理相關理論進行了較為詳盡的闡述；分析研究了中國電信運營企業的發展現狀和存在的主要問題；運用swot分析法對中國電信企業進行了戰略分析與評價，並從產業結構的角度對中國電信運營企業的行業競爭情況進行了分析；提出了可供我國電信運營企業選擇的一般競爭戰略、股份制改造、多元化經營戰略、市場營銷戰略、企業創新戰略、跨國經營戰略；並從盡早啟動企業業務流程重組（ bpr ） 、逐步建立動態競爭條件下的柔性組織、積極推進知識型企業人力資源的開發與管理三個方面，提出了戰略實施的措施。
  16. In new 2004, schneider electric will further extend its low end control product lines, which include power supply and plc with new products launching and product upgrading. the goal is to provide the customers more quality products and multi - selection interest

    2004年施耐德電氣小型自動化產品線將進一步豐富，從開關電源到plc將有一系列新產品發布和產品升級，旨在為用戶提供更優質的產品和更多元的選擇。
  17. The switch power will operate at ccm condition when circuit is set to pwm mode. when pfm mode is selected for the operation mode, the switch power will still operate at pwm condition with the high load, the system will cancel the pwm mode and enter the pfm mode only when the load is drop to a certain threshold to boost the operation efficiency at light load, make the ic has high efficiency within wide load range

    選擇pwm模式，開關電源將工作在ccm模式下;選擇pfm模式，在負載較高的情況下，開關電源仍然工作于pwm模式，只有當負載降低到一定程度時，開關電源才退出pwm模式，而按照pfm工作模式操作，跨過一部分時鐘周期，降低頻率相關功耗，以提高輕負載時低效率的問題，使得開關電源在很寬的負載范圍內都具有高效率。
  18. The paper analyzed the working principle and gave an example of application in color television, for quasi - resonant is a good solution for improving the efficiency of power supply of color television, proving it is an ideal choice for superior big screen color television in the future

    摘要提高彩電開關電源效率，準諧振軟開關技術是很好的解決方案，分析了這種技術的工作原理，給出了在彩電中應用示例，結果證明它是未來高檔大屏幕彩電電源的理想選擇。
  19. According to practical technique, better economic index, nearing the main electrical net shelves and focusing on electrical load, we determine overall arrangement of waterpower resource exploitation, select item of waterpower resource exploitation in the near and medium term, raise a blueprint about heilongjiang water - electricity power exploitation and establishment in the near and medium term in order to take reference for relative department

    按照技術上可行、經濟指標較好、靠近電網主網架和用電負荷中心區域的原則，確定水能資源開發總體布局，選擇出近中期水能資源開發與利用項目，對近中期我省水電工程開發與建設提出一個構想，供有關部門決策參考。
  20. In recent years, the company continuously increased technical inputs, launched microcomputer timer switch, the computer scanning controller neon lights and with a series of other products, for customers in the neon lights supporting the use of power provides a new choice

    近年來公司不斷加大技術投入，相繼推出微電腦定時開關、霓虹燈電腦掃描控制器及燈帶等一系列產品，為客戶在霓虹燈電源的配套使用提供了新的選擇空間。
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