pwm pulse width modulation 中文意思是什麼

pwm pulse width modulation 解釋
脈沖寬度調制
  • pwm : 脈沖寬度調制，被用來進行充電控制。常見于諾基亞手機的充電控制電路。
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  • width : n. 廣闊；寬度；幅度；（布匹的）門面；幅員；廣博。 12 feet in width 闊 12 英尺。 width in the clear 【林業】除皮直徑。
  • modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
  1. A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented, it is composed of avr microcontroller, pwm power driver, unit of speed detection using encoder and a serial communication interface, etc. fuzzy pid algorithm is employed to control the speed and position of wmr. the method can solve effectively some problems such as the uncertainty of wmr ' s model, the varieties demand, the change of situation

    其次，設計了基於avr微控制器（ at90s8515 ）的移動控制系統，其中主要包括pwm功率驅動、測速單元和串列通訊模塊等：對機器人速度、位置控制採用模糊pid演算法，較好地克服了移動機器人模型的不確定性、轉速位置控制要求的多變和環境改變等因素的影響。
  2. This system consists of a full bridge pwm ( pulse width modulation ) regenerative rectifier or so - called vsc ( voltage source converter ) that connected to pcc ( point of common connection ) at the power utility grid through a passive interface circuitry

    這種系統包括一個pwm全橋可逆整流器或者所謂的電壓源變換器，通過無源電路介面與電網的pcc點（公共連接點）相連。
  3. As is known, conventional pulse width modulation ( pwm ) can acquire good quality outputs, but the resonant time is not comfort with phase ’ change all the time, so big error will be taken in if using pwm

    由於常規的pwm調制雖然能輸出質量比較好的波形，但是由於諧振時刻並不一定是發生在換流時刻，所以，使用常規pwm調制會帶來很大的時間誤差。
  4. At present, there are three kinds of modes of modulation including pulse width modulation ( pwm ), pulse frequency modulation ( pfm ) and the modulation of combination of pwm and pfm. lots of products using above modulations are designed in many famous companies

    目前，在功率變換系統中常見的有三種調制模式:脈寬調制模式（ pwm ， pulsewidthmodulation ） 、脈頻調制模式（ pfm ， pulsefrequencymodulation ）和二者可以相切換的pwm / pfm模式。
  5. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電機原理與脈寬調制技術，選用智能功率模塊ipm作為逆變開關器件，輸出交流脈沖勵磁信號，以調節勵磁轉換頻率和勵磁電流大小為手段，實現對磁場旋轉頻率和磁場強度大小的有效調節，並通過閉環反饋實現閉環恆流控制。
  6. The circuit utilizes 1mhz current - mode pulse width modulation ( pwm ) control to allow small input and output capacitors and a small inductor, while reducing the circuit ’ s volume and minimizing the input supply ripple to 15mv

    該電路採用頻率為1mhz的電流反饋模式脈沖寬度調制模式，可使外部電路選用小的輸入、輸出電容以及小電感，減小了電路的體積，同時能將輸入電壓紋波減小到15mv 。
  7. Unlike inverters for general purpose, auxiliary inverters of subway vehicle have the characters of high power, wide range of high dc input voltage, entirely sealed electronic units and natural cooling. single pulse width modulation ( pwm ) technology is found to be optimal by comparing several different high power inverter technologies and is utilized in the 2 - channel staircase inverter discussed in this thesis

    針對地鐵車輛輔助逆變電源的大功率、直流側輸入電壓高且變化范圍寬、輸出電壓穩定且波形質量高，電子部件全密封且要求自然冷卻的特點，分析比較了幾種大功率逆變器技術方案，選擇單邊脈寬調制階梯波合成逆變器為研究對象。
  8. High - speed on - off valves are used and controlled with pulse width modulation ( pwm ) in this system

    系統應用高速開關閥，用脈寬調制（ pwm ）的方法進行控制。
  9. Pulse width modulation pwm

    脈波寬度調變
  10. Firstly, the current testing localization in the detection of electric bow is analyzed and the new system ' s whole construction developed in this thesis is introduced ; in the 2rd chapter, the embedded 110v dc power supply is analyzed and constructed, and with experiments, some dissonant results such as the fluctuation of output pwm ( pulse width modulation ) pulses, the power noise added to output voltage, and the drop of output voltage have been analyzed and the problems have been broken down one by one ; in chapter 3, stepping motor ' s drive has been systematically dissertated, and combing stepping motor ' s subdivided drive technology, the author develops an intelligent mini - step driving circuit using a main - sub microprocessor structure, which is validated in the hybrid stepper based system ; in the 4th chapter, liquid crystal driving and displaying technology is specified in detail, with one sort of lcd modules ( tlm12864h ), the author develops an feasible circuit for the new testing system, designs a menu mode based program struc ture and brings here some programming codes using franklin c51 programming language ; in chapter 5, the above built system is used in the electric bow ' s practical detection, and the differentiating rate of this system is analyzed

    論文首先分析了目前機車受電弓檢修方式存在的局限並概述了本論文研製的受電弓測試系統的體系架構；第二章對系統內置110v直流控制電源進行了分析和設計，結合試驗對輸出pwm振蕩、輸出電源噪聲大、輸出電壓下跌等現象進行了分析並提出解決措施；第三章論述了步進電機的驅動，結合步進電機微步驅動技術研製了基於上下位單片機組的混合式步進電機智能驅動電路，並在試驗中得以驗證；第四章詳述了液晶驅動及顯示技術，利用一款液晶顯示模塊tlm12864h研製出本系統用液晶顯示電路，設計了菜單式的程序結構並以franklinc51編程方式給出部分子程序代碼；第五章則將以上構建的整個系統應用在機車受電弓的實測中，並對測試解析度進行了分析。
  11. Firstly, the research and development situation of pneumatic servo system in recent years is summed up. meanwhile, the development history and present situation of interrelated control theory is reviewed. considering the cost and the capability of control of phcc servo system, high - speed on - off valves are used as control valves and controlled with pulse width modulation ( pwm ) in this system

    論文首先綜述了近年來氣壓伺服系統的研究和發展狀況，考慮到氣液聯控伺服系統的成本和控制的可能性，確定採用氣液高速開關閥作為系統的控制閥，應用脈寬調制（ pwm ， pulsewidthmodulation ）方法進行控制。
  12. First, the operational principle of the boost converter which includes continuous mode and discontinuous mode was analyzed as well as the basic theory about current mode and the circuit modulation which includes pulse width modulation ( pwm ) and pulse frequency modulation ( pfm )

    首先分析boost電路的兩種工作模式，即連續電流模式和不連續電流模式，然後分析了目前應用比較廣泛的電流反饋控制模式，最後對頻率寬度調制（ pwm ）模式和頻率脈沖調制（ pfm ）模式進行了對比分析。
  13. 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。
  14. The main circuit of the design in this article we used is fb zvs pwm dc / dc converter, full bridge zero voltage switching pulse width modulation dc / dc converter, which is a full bridge circuit composed of four power switches using resonance to implement zero voltage when turning - on or turning - off

    本文設計的通信電源充電模塊的主電路採用的是fbzvspwmdc dc變換器，即全橋零電壓開關脈沖寬度調制的直流變換器，它是由4個功率開關管組成的全橋電路，利用諧振使每個開關管在零電壓的條件下完成導通和關斷。
  15. This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation ; the influence of snubber circuit, dead time effects, and modulation frequency to igbt pwm inverterbridge is taken into account, too

    本文對雙極性調制的無刷直流電動機模擬，分析了轉速和調制頻率對轉矩影響；並綜合考慮緩沖電路、控制死區及載波頻率對pwm逆變電路中igbt開關損耗的影響。
  16. In this paper, a pwm - controlled fault current limiter is proposed. it is composed of a limiting reactor and a compensator capacitor, which is in parallel with a pulse width modulation ( pwm ) switched reactor

    本文在總結前人研究成果的基礎上，提出了一種基於脈寬調制原理（ pulsewidthmodulation ，縮寫為pwm ）技術的故障限流器（ pwm - fcl ） 。
  17. The sine wave pulse width modulation ( spwm ) is used to reduce the wastage and the noise of the motor more effectively, as comparing to the equal pulse width modulated pwm

    相對于等寬脈寬調制pwm ，正弦波脈寬調制spwm可以有效地降低電動機的損耗和噪聲。
  18. At first the switching power amplifiers of the discrete components are researched and some application circuits for amb power amplifiers are developed. secondly the integrated power amplifier is discussed, a new type of pulse width modulation ( pwm ) power amplifier applying sa60 is designed and used in amb system. in the end of the dissertation several synthesized tuning measures and some experimental results for amb system are presented

    首先討論了分立元件開關功率放大器原理並研製了在電磁軸承中的應用電路；其次討論了集成功率放大器，應用sa60設計了新型脈寬調制功率放大器並在電磁軸承中應用；在論文的最後給出了電磁軸承系統綜合調試的一般方法及調試結果。
  19. This paper studies the structure and computer control of an arm rehabilitative robot. this robot is droved by dc - torque motor ; this robot uses the mature pwm ( pulse width modulation ) power magnifier

    本論文結合理論與實踐，對手臂康復訓練機器人的機構進行設計、研製樣機，並對其控制系統進行研究。
  20. Pwm pulse width modulation

    脈沖寬度調制
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