整流轉換 的英文怎麼說

中文拼音 [zhěngliúzhuǎnhuàn]
整流轉換 英文
commutation
  • : 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...
  • : 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...
  • : 轉構詞成分。
  • : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
  • 轉換 : change; transform; convert; switch
  1. The thesis discuss the data mining principle and technology from application and the fact of guizhou telecom. by uniting the designing and developing processes, the system cleanout, change, loading the volume custom operation data into the data warehouse that used many analyst methods such as clustering analyst, forecast analyst to make the function of subdividing custom colony and running and improved the competition core ability of enterprise

    同時,針對貴州電信海量的客戶運營數據,經過清洗、合到數據倉庫中,採用了多種分析方法,如聚類分析、預測分析,實現了客戶群細分、客戶失預測等功能,極大的提高了貴州電信核心競爭力。
  2. We are your specialist for semiconductor diodes and rectifiers : standard to ultrafast recovery, schottky, zener, supressor - diodes, bridge rectifiers, transistors, diacs ; also customized

    我們是專門提供二極體以及器,例如:標準到超快速恢復,肖特極,穩壓,雙向觸發二極體,橋式器,器等等,可以依照客人要求訂做。
  3. Complete air piston pump contains pneumatic motor and piston pump, the ratio of piston area of pneumatic motor and plunger ' s sectional area of piston pump is transforming times of pump pressure ; the higher times, the more pressure can deliver higher viscosity fluid, and achieve the delivery aim

    的氣動柱塞泵包含有氣動馬達與柱塞泵兩部分,氣動馬達中的活塞面積與柱塞泵活塞的截面積比值,就是泵壓力的倍數;愈高的倍數就能以愈大的壓力輸送愈高黏度的體,達到輸送的目標。
  4. In this paper, on the basis of absorption of achievements of the research on auditory physiology, an auditory model simulationg the peripheral auditory system and part of the central auditory system is set up. the model is made of the fitlters presenting the characteristics of the basilar membrane for analyzing the voice signals, the half wave rectification modeling the inner hair cells and energy transfer of nerve fiber

    在吸收聽覺生理學研究成果基礎上,建立了一個模擬外圍聽覺系統和部分中樞聖經系統功能的聽覺模型。模型由表徵基底膜的頻率分析的帶通濾波器組、內毛細胞的半波特性和神經纖維的能量特性組成,該模型可以作為前端處理來提取語音信號的自相關圖譜。
  5. E ) lack of foresight on finance lease scheme, which causes irrational tenor structure and imbalanced annual outflow of rental payments, results in funding costly. to solve aforesaid problems, thesis finds out the following principles for optimizing ca ' s aircraft finance : a ) determining the volume and currencies of ca ' s cross - border aircraft finance based on the annual outflow of foreign debt repayments and annual net inflow of foreign exchange, so are the dominated currencies in debt. b ) enlarging the portion of borrowings at floating interest rate in ca ' s whole foreign debt

    針對以上存在主要問題,本文進一步提出了優化飛機融資的總體構想,包括:根據其每年的外匯入總量及幣種構成確定國航合理的飛機境外融資規模應與負債幣種;在利率結構方面,擴大浮動利率在個國航外債中的比重,選擇適當時機將部分固定利率貸款為浮動利率貸款;在飛機引進多元化方面,通過與飛機製造廠商、出租公司飛機互的方式優化機隊構成,結合提前中止現有飛機租賃就能夠起到優化債務結構和機隊構成的事半功倍的效果,以及在未來飛機融資中優先使用經營性租賃等。
  6. In order to solve the default of the limited valid scope and discontinuity characteristic, introducing the state continuous conversion gene based on establishment of respective mathematics model for low and magnitude current scope, and integrate with them reasonably then having established the mathematics model of suitable whole scope and having solved present mathematics model existent problems

    本文針對目前電弧爐負載數學模型存在的適用范圍有限、特性不連續等缺點,在建立了分別適合大、小電區域運行特性的數學模型的基礎上,引入狀態連續因子,將分別適合大、小電區域運行特性的數學模型有機結合為一個體,建立了適合全范圍的數學模型,解決了目前數學模型存在的問題。
  7. Thirdly, the relative theories of the limiter and rectifier are studied. in order to make the passive responder work stably under the conditions of large dynamic range of the receiving power and the high efficiency requirement, a two - stage limiter circuit and a voltage - doubler rectifier circuit with several diodes parallel are developed

    3 ,對應答器地面裝置中的能量電路進行了研究,針對應答器地面裝置接收到的載波功率具有大動態范圍的特點以及系統能量的高效率要求,設計了一種兩級級聯二極體限幅電路和多管並聯的倍壓電路。
  8. 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,導致輸入電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 ) 。
  9. The bias magnetic field of the bias coil driven by bias current and small signal test current, results in the induced signal of the control coil. the terminal voltage of the control coil is detected by the test circuit. then the signal containing the information of rotor displacement is obtained, from which we can get the dc voltage signal proportional to the rotor displacement through half - wave rectification circuit and low pass circuit. this dc signal is put into a pid controller to get the control signal of the rotor displacement

    偏置測試電路向偏置線圈輸入偏置電和小信號測試電,兩者產生的偏置磁場在控制線圈產生感應信號,檢測電路檢測控制線圈端電壓並提取含有子位移信息的電壓信號,該信號經半波電路和低通濾波電路后得到與子位移成正比例的直信號,再由pid控制器子位移的控制信號,最後控制信號輸入功放電路產生控制電,實現閉環控制。
  10. The typical performance characteristics include : line and load transient response, efficiency, output voltage ripple, quiescent current, maximum load current, output voltage temperature characteristics and the short

    其中,體模擬指標包括:晶元線性調率和負載調率、效率、輸出電壓紋波、晶元靜態電、最大負載電、輸出電壓溫度特性及短路負載電
  11. This thesis focuses on the ingress process module of ctu, which translates c - 5 dcp format to rainier 4gs3. the specification analysis, architecture and logic design, functional simulation testbench design, synthesis report and testing result are discussed in this thesis. the research work mainly includes : the specification analysis and design requirements of ctu logic ; the architecture and logical design of ingress process module, which includes receive control fsm, send control fsm and cell position adjustment logic ; the performance improvement of ingress process module to receive and transmit data cell at the full line speed

    本論文的主要研究工作包括:通信協議邏輯的功能分析和設計需求;通信協議邏輯上行方向的系統分析及體系結構設計,包括上行接收狀態機、發送狀態機、信元內位元組位置調機制等的設計;通信協議邏輯上行方向的線速設計,主要是上行接收的線速設計,要使用水設計技術;提出了高速實現roundrobin調度策略的實現方法,並設計實現了桶式移位器和優先級編碼電路;應用bfm模擬模型設計了上行處理各模塊的模擬testbench ,完成了各級模塊的模塊模擬和系統集成模擬。
  12. Static power convertors ; semiconductor rectifier equipment, examples of characteristic curves for battery chargers

    靜態功率器.半導體設備.蓄電池充電器特性曲
  13. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念,建立了正弦脈寬調制( spwm )逆變器供電異步電動機,考慮主磁路飽和時的變頻調速系統體數學模型,模擬系統的低頻振蕩;其次從逆變器-異步電動機系統能量角度出發,提出通過檢測逆變器輸入電中負電的間隔時間是否大於1 / f _ c ( f _ c為逆變器載波頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  14. The synchronous rectifying and low power sampling technology is used to reduce the power consumption, flexible external loop compensation, error amplifier output clamp are adopted for better system large signal response. the piecewise slope compensation technology is employed to minimize the consequence of over compensation. the sensor resistor is externally connected, which realize output voltage programmable. the overheat protection and under voltage protection modules are integrated in the die to allow the reliable operation of the system

    同時,電路設計採用同步技術、低功耗電采樣技術降低功耗,提高效率;採用靈活的外部環路補償技術、誤差放大器輸出嵌位技術以實現良好大信號特性;採用分段斜坡補償技術,消除不穩定因素,並最大程度地減小過補償帶來的問題;採用外接輸出采樣電阻的方式,實現輸出電壓的可編程。
  15. This paper firstly introduces the control principle of magnetically controlled reactor, presents a retifier ' s monitor and control system of high potential based photoelectric convert according the demand of the electric reactor ' s system, the design and the implementation of the hardware and the software is given

    介紹了磁控式可控電抗器的控制調節機理,並根據其系統的需求提出了一種基於光電的高電位器的監控系統,並給出了其硬體和軟體的設計和實現。
  16. 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,包括信號的和在單片機內的運算;高集成度16位模數晶元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。
  17. The pulse - width modulated ( pwm ) is the key technologyto acquire the high power factor. the document presents the principle of three - phase pwm, then analyzes and compares the several maturely control methods for pwm

    本文將交電機理論中空間坐標系旋理論引入到pwm器的分析中來,建立了三相pwm器的統一的數學模型。
  18. Meanwhile the influences of a hopper structure on the flow patterns of wet materials are different from dry materials. usually the critical open diameter of a hopper for dry particles is more than 3 times of particle diameter, but not less than 4 times for wet particles. for dry particles, the hopper angle which causes transformation from funnel flow into mass flow is about 45

    同時料倉結構參數對干濕顆粒動特性的影響也存在一些明顯的差異:對于干顆粒,滿足不結拱的料倉開口度尺寸至少為顆粒直徑的三倍,而濕顆粒則要求料倉開口度至少為顆粒直徑的四倍;干顆粒由漏斗的角度在45度左右,而濕顆粒的角度為40度左右。
  19. Again, consider using amplifiers that exhibit a smooth input bias current transition throughout the applied input common - mode voltage

    再者,所用的放大器也要考慮在加到輸入端的個共模電壓(范圍內)輸入偏置電保持平滑。
  20. We utilize the mutual inductor to take a sample to the three - phase current, and sample which is enlarged, rectified, filtered, is send into pic single chip microcomputer to deal with. the size of three - phase current on the line is calculated out, which offer the accurate value for the change of controls the equipment state

    利用互感器對三相電取樣,然後通過放大、、濾波,實現交直,送入pic單片機處理,計算出溫室輸電線上三相電大小,為控制設備狀態的改變提供精確數值依據。
分享友人