電流控制開關 的英文怎麼說
中文拼音 [diànliúkòngzhìkāiguān]
電流控制開關
英文
current-controlled 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...
- 流 : 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...
- 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...
- 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...
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
- 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
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A. c. high - voltage switchgear and controlgear. high - voltage motor starters. part 1 : direct - on - line full voltage a. c. starters
交流高壓開關設備和控制裝置.高壓電動機起動器.第1部分:直接在線交流起動器Current control by a pw modulated switching rectifier instead of a current sensor
無電流傳感器的電流控制調寬式開關整流器The main products of our company : series of mining emulsion pump station, series of electric haulage shearer, sparying pump station, series of mining flame - proof vacuum / air electromagnetic starter, series of mining vacuum / air feeding switch, series of mining fame - proof and natural - safe. type ac soft starter, series of hydraulic stand valve and pipe system, high flow rate quick - moving valve, the new product nearing into market - the hydraulic support electric - control system, mining electric drill, hydraulic valve test table, electric performance test table
公司主導產品為:系列電牽引採煤機、系列礦用乳化液泵站、噴霧泵站、礦用隔爆兼本質安全型交流軟起動器、系列礦用隔爆真空、空氣電磁起動器、系列礦用真空、空氣饋電開關、系列液壓支架閥類及管路系統、大流量快速移架閥、即將投入市場的新產品? ?液壓支架電液控制系統、煤電鉆系列、液壓閥試驗臺、電性能試驗臺等。Power mosfet is a voltage - controlled appliance which has a fast switch speed, small driven current and higher threshold voltage. so it is the ideal power interface component of micro - computer
功率mosfet是一種電壓控制型器件,開關速度快,驅動電流小,開啟電壓較高,是微機的理想介面部件。A novel current control mode pulse width modulation switched high frequency resonant arc igniting device is developed based on uc3842 and the principle is analyzed
摘要採用uc3842設計了電流控制型脈寬調制開關式高頻振蕩引弧器,並對其工作原理進行了分析。Thirdly, current ripple will be calculated in two current control mode respectively and paper will make a conclusion about its interaction with the voltage, current, frequence and so on. finally this paper will show the design of the controller and test waveforms
另外,本文分析了在兩種電流控制方式下,即pwm控制和滯環控制下電流脈動和相繞組電壓、相電流、轉速和開關頻率的關系。In order to avoid the current ripple and the high switch frequency of fixed - band hysteresis current controllers, two hysteresis controllers of change hystersis - band are proposed. one is the sinusoidal - band hysteresis current controller, the other is the adaptive hysteresis current controller based on fuzzy theory
由於常規的滯環電流控制器不能有效地防止負載電流脈動,並且存在著容易導致逆變器的開關器件的開關頻率過高的問題,論文提出了兩種變環寬滯環電流控制器結構,其一是正弦環寬滯環電流控制器,其二是模糊變環寬滯環電流控制器。Using the modified method, 6 kinds of tl topologies of single - switch converter are obtained. the deep research reveals that these tl topologies can have less value of the inductor by using interleaving modulation strategy compared with conventional modulation strategy on the condition that the current ripple of the inductor are the same. some drawbacks such as high voltage stress, difficulty of realizing soft - switching, and magnetic aberration were presented in the conventional push - pull converter
對基本方法進行改進,提出了適合6種單管直流變換器的三電平拓撲變換方法,成功地得到了其三電平拓撲,開關管的電壓應力降為原來的一半;經過對這些三電平拓撲控制策略的深入研究,詳細論述了交錯開關方式可以最大幅度地減小電感的電流脈動,從而可以在電流脈動要求相同的情況下減小電感的設計值。A system with repmsm ( rare earth permanent magnet synchro - nous motor ) as executing motor is presented in this thesis. the hardware platform for the ac speed regulating system is based on tms320f240 dsp controller and uses ipm ( intelligent power model ) as the power device in the invert circuit
系統選用正弦波永磁同步電動機為執行電機,以ti公司的tms320f240dsp晶元為控制核心,以智能功率模塊( ipm )為逆變電路功率開關器件,構成交流調速系統的硬體平臺。Based on the investigation with several voltage control methods, such as venturini method, instantaneous double - voltage synthesis method and space vector modulation method ( svm ), three new control strategies are put forward. firstly, a time - varying modulation coefficient svm method is proposed to improve mc ' s anti - disturbance performance under the asymmetry input voltage. secondly, a 5 - state switching strategy is presented for mc controlled by the svm method, which reduces the commutation number and switching losses remarkably
在分析了venturini控製法、瞬時雙電壓法、空間矢量法等電壓控制方法的基礎上,提出了在非對稱輸入條件下矩陣變換器空間矢量法的時變調制比改進控制策略,提高了變換器的抗干擾性能;對空間矢量法的開關策略進行了研究,提出了新型5狀態開關策略,在保證其他性能不受影響的條件下,減少了變換器的換流次數和開關損耗;提出了一種矩陣變換器單電壓合成的新方法,它不僅使得變換器的控制簡單,計算量減少,而且使得開關損耗達到最少。The research work is involved in the main circuits structure and the protection of the valves, the determination for the important parameters of the components in the main circuits, the triggering system of the valves, the technology of hv - tsc valve ' s turn - on without inrush current presentation, and the function design for the controller of the thyristor valves. a real hv - tsc valve controller corresponding to the research work has been developed. field tests has shown that the hv - tsc valve controller is able to provide effectively and reliably control and protection for the hv - tsc valves
本論文對高壓tsc裝置所用的可控硅開關的主電路電氣結構、主電路的保護電路、主電路中的重要元件參數的選擇、可控硅開關的觸發系統構成、無沖擊涌流投入電容器技術、可控硅開關控制器功能設計及其功能實現進行了深入的研究和探討,並對可控硅開關控制器進行了實際的設計和試制,現場測試證明其對可控硅開關的控制是可靠、有效的。In addition, the working principle, characteristics and compensation of the control system of current peak are deeply discussed ; the pwm control circuit of using uc3875 as the core, the inputting over - voltage protecting circuit and owe - voltage protecting circuit are given, etc
此外,論文還對軟開關逆變器峰值電流控制系統的原理、特性及補償進行了深入的分析;設計了以uc3875為核心的移相pwm控制及輸入過壓、欠壓保護等電路。People can easily design the hysteresis current control hardware circuit, but the switching frequency is variable which makes us difficult the design the output filter, moreover the output waveform is not good. the space vector modulation techniques, by selecting the zero vector properly, it can reduce the harmonic content of the output voltage, so it has become a popular control method
滯環電流控制的硬體電路設計簡單,但存在開關頻率不固定,輸出濾波器設計困難,輸出波形質量差,空間矢量控制( svm )技術具有較高的電壓利用率,且通過對零矢量的合理控制可以降低諧波含量或降低開關損耗,因此是一種較好的控制方法。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 。Lamp controlgear - particular requirements for electronic invertors and convertors for high - frequency operation of cold tubular discharge lamps neon tubes
燈具控制開關.冷管放電高頻燈具電子變流器和逆變器專門要求Consequently, an integrate switch mode power supply with high efficiency and good reliability can be realized by the controller with very few external parts. the fundamental principle of monolithic voltage - mode switching regulator is firstly introduced in this thesis, which is followed by a comparison between voltage - mode and current - mode converters where the pros and cons of both converters are discussed in detail ; next, the global system architecture is proposed upon the design requirements and sub - block circuits are also introduced that focuses on several essential sub - blocks such as amp, wave, pwm control, psc, osc and vref. finally, all sub - circuits and the whole chip circuit are simulated by hspice whose results indicate that the circuit function and performance have perfectly satisfied the design requirements
在論文中,首先闡述了電壓控制模式pwm開關電源的基本原理,對比了電流控制模式和電壓控制模式,分析了各自的優缺點;隨后根據設計要求進行了電路的總體設計,完成了各個子電路的原理分析,電路設計和模擬驗證,重點闡述了誤差放大電路、三角波發生電路、 pwm控制電路、節能控制電路、振蕩電路和基準源電路的分析、設計和驗證過程;最後,利用eda軟體hspice對整體電路進行了功能模擬驗證,模擬結果表明,本文完成了設計工作,達到設計要求。Energy - saving equipment installation - including t5 or t8 fluorescent tubes, electronic ballasts, variable speed drives for air - conditioning systems, occupancy sensors that automatically turn off air - conditioning when the room is empty, and energy - efficient office equipment
(乙)裝設節能設備例如: t5或t8光管、電子鎮流器、用於冷氣系統的可變速推動器、動態感應器作為冷氣控制開關、及採用節能的辦公室設備等。The circuit topologies of vrm are completely studied, and the control methods of vrm are synthetically analyzed
本文全面、詳細研究了低壓大電流輸出開關電源vrm的電路拓撲,並對vrm控制方法進行了綜合分析。The basic theory of switched reluctance generators ( srgs ) is illustrated. by analyzing the control strategies of srg, three control strategies of bsrgs are suggested : current chopping control ( ccc ), angle position control ( apc ), pulse width modulation ( pwm )
綜合普通開關磁阻發電機的電流控制方式,提出了無軸承開關磁阻發電機的三種控制策略:電流斬波控制策略( ccc ) 、角度位置控制策略( apc ) 、 pwm控制策略。Due to the charge sharing and charge leakage phenomena in the traditional charge - pump, a new charge - pump with current control technique is designed in this thesis. in the circuit design, a simple positive feedback is employed to expedite the switching speed. the simulation results show that the charge sharing and charge leakage phenomena can be effectively prohibited in the proposed charge - pump
2 .針對傳統電荷泵中存在電荷泄漏和電荷共享現象,設計出了一種採用電流控制技術的新型電荷泵,電路中巧妙地運用了一個簡單的正反饋,以加快開關速度,模擬結果表明,所設計的電荷泵能有效的抑制了電荷泄漏和電荷共享現象。分享友人