控制柵電壓 的英文怎麼說
中文拼音 [kòngzhìzhàdiànyā]
控制柵電壓
英文
control grid voltage- 控 : 動詞1 (告發;控告) accuse; charge 2 (控制) control; dominate 3 (使容器口兒朝下 讓裏面的液體慢...
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 柵 : 柵名詞(柵欄) railings; paling; palisade; bars
- 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...
- 壓 : 壓構詞成分。
- 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
- 電壓 : voltage; electric tension; electric voltage
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In the beginning, the working principle, testing and data processing system of pdl micro - control material test machine is introduced ; then more attention is paid to the hardware system which is composed of high precision raster linear displacement sensor, high precision force sensor, the digital displaying sets, the interface equipments and the controlling circuits etc to perform the data collection and ensure the testing precision of the whole system
論文首先介紹了pdl材料拉伸試驗機的工作原理、測試及數據處理系統;接著詳細介紹了由高精度光柵線位移傳感器和壓力傳感器、數顯裝置、介面裝置及控制電路等組成的新的硬體系統,來完成數據採集,並保證整個系統的測試精度要求。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 paper lays a strong emphasis on discussing the realization of the autocontrol of raster scanning of the scanner in x - y dimension, the " tapping " of the cantilever of the tappingmode afm by a direct digital synthesizer. then a method of parallel communication between dsp and pc in epp mode is given. finally, the author discussed the digital pid closed loop control of the scanner in z - direction, the automatic approaching of the tip using step - motor, and also some electro - magnetic interferences
論文首先簡單介紹了掃描探針顯微鏡的發展、分類、工作原理及應用;接著對ti公司的tms320vc5402dsp的特點及外圍擴展作了簡單介紹;然後分章節重點講述了利用vc5402dsp實現掃描探針顯微鏡的核心部件? ?壓電陶瓷管的x向和y向的光柵掃描控制;藉助直接數字集成器( dds )實現輕敲式原子力顯微鏡的微懸臂的「輕敲」 ; vc5402dsp的主機介面( hpi )與pc機在增強并行口( epp )模式下的通信;論文最後還介紹了掃描管z向的數字pid閉環控制,步進電機的自動進針,並對實際出現的一些電磁干擾問題作了討論。A quick spectroscopic diagnostic system for the flame temperature is set up in this paper. it consists of an optic imaging system, a scanning system, a dispersive system, a photoelectricity conversion cell, operational amplifiers, a computer - based data collection system and a data processing. the temperature profile varying with the time can be quickly measured by this system
目前光學診斷由於其相應快、精度高,屬于非接觸式測量手段,在研究中得到越來越多的應用,這里要介紹的就是本文中建立的一套光學診斷系統,它由高壓燃燒室、旋鏡掃描儀、旋鏡控制器、小型光柵攝譜儀、光電轉換裝置,微弱信號放大器以及數據採集系統組成。To realize the large stroke microfeed in this feed system, the microfeed system of closed - loop feedback control was adopted. the system is controlled by the 89c5 1 singlechip computer and combinely driven by the stepmotor and piezoelectric ceramic, the worktable ? position is measured by the raster position sensor
為滿足進給系統能實現大行程的微量進給的要求,系統採用了由89c51單片機控制,由步進電機和壓電陶瓷復合驅動,並通過光柵位移傳感器進行位移檢測,從而形成閉環反饋控制的微量進給方式。In this paper, a three phases high - voltage power mos gate drive integrated circuit has been researched and designed successfully. it is a typical spic, which could be widely used in high power motor control and switching power supply applications. the design goal of the circuit are v0ffset ( max ) is 500v, ia ( m ~ ) is 1 a, the highest frequency of operation ( f ( ~ x ) ) is 100khz
本文研製成功了一種可廣泛用於大功率電機控制、開關電源等應用中的spic電路?三相高壓功率mos柵驅動集成電路,其設計指標要求為:最高偏置電壓( voffset ( max ) )為500v 、最大輸出電流( i _ o ( max ) )為1a 、最高工作頻率為100khz 。The author ' s main contributions are outlined as following : first, the roles of hot electron and hole in dielectric breakdown of ultra - thin gate oxides have been quantitatively investigated by separately controlling the amounts of hot electron and hot hole injection using substrate hot hole ( shh ) injection method. the changes of threshold voltage have been discussed under different stress conditions
主要研究結果如下:首先,利用襯底熱空穴( shh )注入技術分別控制注入到超薄柵氧化層中的熱電子和空穴的數量,定量研究了熱電子和空穴注入對超薄柵氧化層擊穿的影響,討論了不同應力條件下的閾值電壓變化。This paper put forward a demodulation method of fbg sensors based on the voltage drive fabry - perot cavity ( f - p ), on which we have a feedback control voltage to drive. a novel automatic trace method is creatively proposed
本文提出了一種基於電壓驅動可調法布里腔自動跟蹤掃描濾波的光纖光柵傳感器解調方案,利用電壓反饋控制可調法布里腔的方法,達到對外界的振動、應變等物理量引起的布拉格光纖光柵反射光譜的漂移進行解調。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。The system is developed by technology of ieee488. it ’ s hardware consists of fbg ’ s optical circuit and pzt ’ s programmable control voltage circuit
該系統硬體部分包括布喇格光纖光柵調諧光路部分與壓電陶瓷電壓控制電路部分。分享友人