過沖電壓 的英文怎麼說
中文拼音 [guòchōngdiànyā]
過沖電壓
英文
overshoot voltage-
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一般壓力表氣壓表抗震壓力表充油壓力表全不銹鋼壓力表膜盒微壓表電接點壓力表冷媒壓力表真空壓力表壓力真空表隔膜壓力表微型壓力表差壓表微差壓表絕壓表精密壓力表耐高溫壓力表蒸氣壓力表汽車燃氣壓力表醫用壓力表遠傳壓力表衛生型壓力表壓力表緩沖管壓力表冷凝散熱器壓力表翅片散熱器壓力表開關不銹鋼連接彎管不銹鋼連接軟管轉換接頭油壓連接頭壓力表針閥節流閥及過壓保護附件濾油網加油口油溫油麵計雙金屬溫度計等。The experiment result shows that the snubber can suppress the over voltage effectively at switch off and its dissipation is little
實驗結果表明,該電路能夠有效防止igbt關斷過電壓,緩沖電路損耗較小。2 ignitor : - this is an electronic amplifier that receives electric current from the ballast and boosts voltage to ignite the arc light source in all environments. it initializes plasma discharge within the source by delivering a high - volt pulse to the electrodes
2 ignitor : -是一個從ballast接收電流並向所有環境中的arc light source釋放電壓的電子放大器,它通過向電極傳遞高脈沖來對等離子放電器進行初始化1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %
從功率單向流動角度出發,提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲,在調制系數0 . 1 m 0 . 5情況下,控制移相角按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、低頻逆變,從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,移相全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high
針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析,變頻器輸出的電壓波形諧波大,沖擊大,電壓上升率高達6600v / s ,是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低,額定頻率在8 - 20hz ;調速范圍寬,最低運行頻率低到0 . 5hz ,起動次數相當頻繁,每小時高達600 - 800次,沖擊負荷大,過載能力要求較高。By comparing and analyzing the advantages and disadvantages of three kinds of voltage reference circuits, type of current density ratio compensation 、 weak inversion type and type of poly gate work function, a cascode structure of type of current density ratio compensation is chosen to form the core of voltage reference circuit designed in this paper. applying the negative feedback technology, an output buffer and multiply by - 2 - circuits are designed, which improve the current driving capability
然後通過比較和分析電流密度比補償型、弱反型工作型和多晶硅柵功函數差型三種帶隙電壓基準源電路結構的優缺點,確定了電流密度比補償型共源共柵結構作為本設計核心電路結構,運用負反饋技術設計了基準輸出緩沖電路、輸出電壓倍乘電路,改善了核心電路的帶負載能力和電流驅動能力。By using a counter and an operation microprocessor, this paper analyses the measuring method and designs an instrument of edm sinking process in discharge state. this instrument takes samples of voltage, current signal and strong and weak of high frequency signals of detecting voltage amplitude, translates them into various time pulses in discharging state. and a counting unit turns these pulses into digital signals, then send them to a microprocessor. finally various discharge time percentages are sent to the control tache
通過采樣電火花加工放電間隙的電壓、電流信號和檢測電壓幅值上的高頻信號的強弱,得出反映間隙放電狀態的各種時間脈沖,利用計數器分別對其計數,再送給單片機運算處理,輸出控制環節所需的各種放電狀態時間百分數。Abstract : by using a counter and an operation microprocessor, this paper analyses the measuring method and designs an instrument of edm sinking process in discharge state. this instrument takes samples of voltage, current signal and strong and weak of high frequency signals of detecting voltage amplitude, translates them into various time pulses in discharging state. and a counting unit turns these pulses into digital signals, then send them to a microprocessor. finally various discharge time percentages are sent to the control tache
文摘:通過采樣電火花加工放電間隙的電壓、電流信號和檢測電壓幅值上的高頻信號的強弱,得出反映間隙放電狀態的各種時間脈沖,利用計數器分別對其計數,再送給單片機運算處理,輸出控制環節所需的各種放電狀態時間百分數。In the experimental system apd transferred laser pulse to weak electrical current. after two - level amplification we got a voltage pulse that had a enough amplitude to be applied, the timing point was discriminated by the constant - fraction timing discriminator circuit. timing circuits transferred the pulse flight time to digital signal accurately
實驗系統採用apd作為光電傳感器,將激光脈沖信號轉變為微弱電流脈沖,經過兩級放大后,信號變為幅度較大的電壓脈沖,經過時點鑒別電路分別確定計時起點和終點后,由計時電路來精確測量兩個時間點之間的時間間隔。Many researches have been done with the simulation model. it was found that some structure parameters such as the diameter of the driving piston, the diameter of the buffer piston, the stiffness of the valve spring, the compress ratio of the buffer piston, and the flux area of the solenoid valve etc. have great effect on the performance of the haecvvs. for certain performance demand of the variable vale system, there is a most suitable combination for the structure parameters
通過對電控可變氣門系統的主要結構參數,如動力活塞直徑、緩沖活塞直徑、氣門彈簧剛度、緩沖活塞實際壓縮比、電磁閥通流面積等參中壓共軌電控柴油機可變氣門系統的研究數對電控可變氣門系統啟、閉特性的影響規律的研究發現,動力活塞直徑、氣門彈簧剛度、電磁閥通流面積對電控可變氣門系統啟、閉性能起著決定性的作用,對於一定的氣門啟閉規律要求,這些結構參數存在一組最佳值。The interface utilizes the high - speed pu lse function of plc basic unit to realize the control frequency of pulse, pwm regulate voltage and to make use of drivers of step motor control step motor
利用plc主機模塊的高速脈沖輸出功能,控制脈沖頻率的發生、 pwm脈寬電壓的調節,並通過步進電機驅動器實現對步進電機高效控制。Among them insulated the insulation resistance testing instrument to adopt the high direct voltage testing method ; the ac insulate testing instrument adopt to the instrument of ac high voltage, and we also designed the protected circuit with excessive current ; the coil insulate testing instrument is adopt surge voltage impact testing method
其中絕緣電阻測試儀採用了直流高電壓測試法;工頻耐壓測試儀採用高壓工頻測試,並設計了過流保護電路;匝間耐壓測試儀採用浪涌電壓測試法,並設計了多路可控硅控制脈沖輸出電路。It has important significance to study the welding technology of variable polarity pulsed mig for high efficiency weding and good quality of welding products. we should control the welding current, output voltage and the process of melting drop more effectively
研究薄板鋁合金變極性脈沖mig焊接技術,更有效地控制焊接電流、電壓輸出和熔滴過渡過程,提高焊接過程的穩定性、提高焊接速度,對于提高焊接效率和焊接產品質量具有重要的意義。The presented thesis studies the gas discharge of lab6 electrodes, the paper analyses the impacts of gas press and electrodes separation on the ignition voltage and voltage drop, and makes low gas pressure, lower than 10pa, discharge switch tubes, with gas of helium and nitrogen, electrodes gaps of 5mm. the paper studies the tubes ’ discharge performances, and the impacts of discharge process on the electrodes
分析直流工作條件下,以氬氣、氮氣、氦氣為工作氣體時,氣體的壓強、極間距對著火電壓和管壓降的影響,並製作低氣壓( < 10pa )下的氣體放電開關管(放電氣體為氮氣和氦氣,極間距為5mm ) ,研究其在直流和脈沖下的放電特性,以及放電過程對電極的影響。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 frequency and mode of the generated microwave are very pure. these results can provide a possible method for constructing a compact high - power microwave device. in addition, a virtual cathode oscillator with an axially extracted te11 mode based on the spark05 accelerator in our laboratory has also been investigated using the pic simulation code
基於spark05加速器電子束參數設計的軸向提取te11模虛陰極振蕩器,利用類似的設計思想,通過改變電壓的饋入方式和陰陽極結構,實現了中心陰極負脈沖電壓的激勵,同樣獲得了較好的粒子模擬優化結果。The schottky diodes prevent undershoot signals from dropping below a specified level, reducing the possibility of damage to connected devices by large undershoots that can occur without the schottky diodes
肖特基二極體防止負過沖信號跌進規定的電平以下,減少接在沒有肖特基二極體時過大的負過沖電壓的器件所可能造成的損害。We studied the resurf, trench - gate, 3d - resurf ldmos. we designed the power switch ic based on epitaxial simox substrate, satisfying the requirements of the user. this ic can sustain 60 ~ 80v shutdown voltage overshot
在此基礎上,本文設計了性能滿足用戶要求的,基於esoi襯底結構的功率開關集成電路,該集成電路可承受60 ~ 80v的反向過沖電壓,並具有過流,過壓等保護電路。The effects of pulse voltage waveform on physical and chemical water treatment processes include double layer capacitor effect, mass transport, absorption and deabsorption on the surface of electrode
脈沖電壓波形主要影響廢水處理的三個物理化學過程,即:電容效應、液相傳質、吸附和脫吸附。It was found that large scale single crystal ttf m - nbp film can be obtained by this method. atomic resolution surface images were observed both with atomic force microscope and scanning tunneling microscope. high density data storage was realized by applying voltage pulses between the stm tip and the substrate
用原子力顯微鏡afm和掃描隧道顯微鏡stm都觀察到了ttf m - nbp薄膜表面的原子級分辨像。通過stm針尖施加脈沖電壓在ttf m - nbp薄膜上實現了納米級的信息存儲,最小記錄點直徑約為1 . 2nm 。分享友人