輸出電極 的英文怎麼說
中文拼音 [shūchūdiànjí]
輸出電極
英文
output electrode- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 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...
- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 輸出 : 1 (從內部送到外部) export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
- 電極 : electrode; pole
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In this paper, the time property of its anode and dynode outputs has been studied and compared by using weak cherenkov light, the results show that their time resolution is dependent on the number of the electrons collected at the same conditions
為了獲得多個倍增極的輸出信號,對其進行了相應的改進,利用弱契倫科夫光,研究了其陽極和倍增極的時間特性,並作了比較,結果表明相同條件下它們的時間分辨與所收集的電子數有很大關系。To select a cylindrical plane cathode ; to design proper focus electrodes in order to control the formation of beam in methods of solving equations, electrobath and simulation aided by computer. to correct effects of anode hole and work out curves of designing guns ; to discuss plasma cathode guns at last
選用圓形平面陰極;設計恰當的聚束極形狀以控制電子束的成形,並使用解析法、電解槽法和數值方法三種方法進行設計;考慮陽孔效應對電子束傳輸的影響,修正陽孔效應,給出電子槍設計曲線;最後討論一下等離子體陰極電子槍。The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db
通過在裝置上做的兩種陰極的對比實驗,結果顯示:碳纖維陰極的使用,改善了電子束質量,使輻射微波的脈寬增加了30 %以上,輻射主瓣方向上的功率密度提高了3db以上,頻譜分佈較純凈,實現了微波的高效輸出。Uses philips modules and high quality, sensible pin photo - diode, provides high rf output, low noise and low non - linear distortion
採用飛利浦光電模塊和優質量高靈敏度pin光電二極體,輸出電平高,低噪音和較小的非線性The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward
介紹了限制寬帶放大器頻帶寬度的因素,通過分析mosfet的本徵參數、寄生參數對頻率特性的影響,提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法;分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響,根據應用於雙極晶體管電路的跨導線性原理,提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器,獲得了良好的頻率響應。The signal sampling circuit fulfill the tasks of sampling signal and changing the double polarities signal to the single polarity signal ; the drive circuit receives the pwm signals from dsp and pass the signals to ipm through optical - couple devices ; the protective circuit safeguard the system against high current, high voltage, low voltage and high temperature on the ipm model
其中信號處理電路主要完成採集輸出電流和中間直流環節電壓信號,並對採集到的電流信號進行極性變換處理的功能;驅動電路接收dsp輸出的高頻驅動信號,通過耦合器件直接驅動ipm模塊;保護電路利用採集到電氣信號對整個系統實施保護,包括過電流、過電壓、欠電壓、 ipm模塊過熱等。The feedback of the output voltage is the major control loop. to achieve better frequency response and disturbance rejection of the input voltage, a input voltage feed - forward system is introduced in control loop. the duty - cycle of pwm applied at the gate of power mosfet is modulated by both input and output voltage
該晶元採用的控制方式為電壓型pwm (脈沖寬度調制, pulsewidthmodulation )控制方式,以輸出電壓反饋作為主要控制參量,同時為了提高晶元對輸入電壓擾動的響應速度,採用了輸入電壓前饋方法,將輸入電壓因素引入了反饋控制環中,通過對輸入輸出電壓的檢測,控制加在功率mos管柵極電壓上矩形脈沖的占空比,進而調節輸出電壓。The goal of this paper is, by serial / parallel combination technique of two - transistos forward converters ( ttfcs ), to keep the merits of the ttfc, and to overcome the shortages of it. the interleaving technique is adopted, while in combining ttfcs. the interleaving technique lowers the net ripple amplitude and raises the effective ripple frequency of the overall converter without increasing switching losses or device stresses
組合式雙管正激變換器由雙管正激變換器串並聯構成,應用交錯控制策略,在保留雙管正激變換器功率開關管電壓應力低和可靠性高的優點同時,克服了等效占空比小、副邊二極體電壓應力高、輸出電流脈動大等缺點。The power includes the following characters : being able to output signal - pole, double - pole and multi - pole spwm waves ; being able to output square wave ; being able to modulate frequency and modulate output voltage range
該電源具有如下特點:可以輸出單極性、雙極性和混合極性spwm波;可以輸出方波;可調頻調幅。In the thesis, we proposed a random lattice model of mea the lattice model randomly occupied by three kinds of particles, pt / c, nafion and ptfe ( poly - tetra - fluoro - ethylene ), was generated on a computer by the means of monte carlo method. it was supposed that current was only produced on those catalysts which have not only channels of electrons via carbon but also have channels of proton via nafion. the purpose of the work, in a word, is to find how many catalysts, pt / c, with such a two - types channels
本文首先建立了質子交換膜燃料電池的膜電極的隨機方格子模型,在電極模型各格點位置用montecarlo方法生成隨機分佈的電極粒子、 nafion粒子和聚四氟乙烯團粒,認為只有那些既有質子傳輸通道,又有連續的電子通道和氣體擴散通道的胞元才產生有效的電流,而其餘胞元不產生電流,把電極的輸出電流轉化成一個概率事件。The simulation program was written by c and matlab on the base of arithmetic of non - then - back random walk. utilization of catalyst was obtained by statistical algorithm of ntbrw. we also discussed the effect the of structure and fabrication techniques of mea on utilization of catalysts
確定了有效輸出電流迷宮通道模型,並建立了非即回無規行走掃描演算法,運用matlab和c語言編寫了模擬程序實現了對膜電極催化劑利用率的統計,並探討了電極結構和電極制備工藝對催化劑利用率的影響。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。1 ) the transformer leakage inductance will cause surge voltage across the switches. two clamp circuits are combined to solve this problem : lcd clamp circuit, in which the voltage across clamp capacitor is no reverse ; flyback clamp circuit, which consists of an additional flyback winding coupled with the boost inductor and a diode connected to the output terminal
本文綜合了兩種箝位電路: 1 ) lcd箝位電路,箝位電容上電壓不反向; 2 )通過增加一個與升壓電感耦合的反激線圈和一個連接到輸出電容的整流二極體,構成反激箝位電路。The twelve kinds of modes and equivalent circuits within one high frequency switching period are carefully analyses. by using the state - space averaging approach, the converter ' s averaging model is presented, the output characteristic curve and design criterion of key circuit parameters such as output voltage, filtering inductance, common conduction time, uni - polarity spwm waveform ' s duty cycle etc are given
詳細分析了這類變換器在一個高頻開關周期內的十二個工作模式及其等效電路。採用狀態空間平均法建立了變換器平均模型,獲得了輸出電壓、濾波電感電流、共同導通時間、單極性spwm波占空比等關鍵電路參數的設計準則和變換器的外特性曲線。In the diagram, the output of the error amp is connected to the base of an npn transistor : when the error amp drives current into this transistor ' s base, it allows current to flow from collector to emitter, and that transistor in turn pulls current from the base of the pass transistor
在這個圖里,誤差放大器的輸出端連接到了一個npn三極體的基極上:當誤差放大器輸出電流到了三極體的基極上,三極體允許電流從集電極向發射極流動,這個傳輸三極體工作時就是就是從基極吸取電流的過程。Hfets ( doped channel ) : concept ; i - v model including velocity saturation ; gate 2 characteristics ; output conductance ; applications of strained layers
基本概念,電流-電壓模型,其中包括速度飽和,閘極特性,輸出電導,應變層的應用。The current flows out of the output terminal
電流從輸出電極流出。In the hall effect, hall electromotive force is not only related to the current density, magnetic field and the distance of the poles, but also to hall coefficient directly
據知,霍耳效應中輸出的霍耳電動勢除了跟輸入的電流強度、磁場強度及輸出電極的間距有關外,還與霍耳系數成正比。According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals
本文提出了一種基於dsp (數字信號處理器tms320f240 )的通用的三相間接變頻電源系統,利用分段同步調製法和混合查表法,實時計算不同頻率下的采樣周期、電壓幅值、輸出脈寬,產生雙極性spwm波形,經驅動放大後用于ipm ( intelligentpowermodule )中的絕緣柵雙極型晶體管柵級驅動,以控制電源的輸出電壓和頻率,實現變頻電源的智能數字控制。Multilevel ( ml ) converters have been attracting more and more attention because they have the advantages such as low voltage stresses for power devices and reduced harmonic content of the voltage waveform. they are very suitable for high voltage and high power conversion applications
多電平直流變換器由於其開關管及二極體的電壓應力低、輸出電壓諧波含量小等優點,特別適合於高電壓大功率的應用場合,近年來正受到越來越多的關注。分享友人