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  pwm type
     A New Kind of PWM Type Power supply for CO_2 Laser
     一种新的PWM型CO_2激光器电源
短句来源
     PWM regulating controller is an important component of PWM type IGBT chopper. This paper introduces a PWM regulating controller designed by using microprocessor technology based on Intel80C196KC and the detailed solution of its hardware and software is given.
     PWM调节控制器是PWM型IGBT斩波器的重要组成部分,利用微机技术,以IN-TEL80C196KC单片机为核心,设计了一种微机PWM数字调节控制器,给出了其硬件和软件具体的实现方法.
短句来源
     This text emphasized to study several kinds design method that drive electric circuit,passing to this several kinds design and research that drive electric circuit,for design a more outstanding PWM type of function switch power supply to provide the theories foundation.
     本文着重研究了几种驱动电路的设计方法,通过对这几种驱动电路的设计和研究,为设计性能更加出色的PWM型开关电源提供理论基础。
短句来源
     Six harmonic suppression measures such as improvement of the power supper structure, increase of the rate of equivalent pulse wave for converters, adoption of a multipe circuit or a PWM type of inverted converters, etc, Which are to control the voltage sine wave distortion rate within the standard range, are discussed in this article so as to guarantee the safety and reliability of the electric network and its installations.
     为保证电网和用电设备的安全可靠,本文提出了改善供电结构、增加变流装置的等效脉波数、采用多重化技术和PWM型逆变器等六项抑制谐波的措施,以把电网电压正弦波畸变率限制在规定的范围内。
短句来源
     In this paper the structure and principle of a new kind of PWM type power supply for CO_2 laser are discussed in detail. Some parameters of the circuit are calculated.
     本文就用VMOS晶体管做成的PWM型CO_2激光器电源的组成和原理作出了全面论述,对电路的参数进行了计算.
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  “pwm型”译为未确定词的双语例句
     (2) Chaos in PWM DC/DC converter;
     (2)PWM型DC/DC变换器中的混沌现象;
短句来源
     (3) chaotic controlling in PWM DC/DC converter.
     (3)PWM型DC/DC变换器中的混沌控制。
短句来源
     Controlling Chaos in PWM DC/DC Converter with Washout Filter
     PWM型DC/DC变换器的Washout滤波器混沌控制方法
短句来源
     Study on Chaos in PWM DC/DC Converters
     PWM型DC/DC变换器混沌机理的研究
短句来源
     Research On Nonlinear Control Strategies for PWM DC-DC Converters
     PWM型DC-DC变换器非线性控制策略的研究
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  相似匹配句对
     (2)C shape;
     C ;
短句来源
     (3)D shape.
     D
短句来源
     Fuzzy Current Traced PWM Technology
     模糊电流追踪PWM技术
短句来源
     Digital Controlled PWM Solar controller
     数字控制PWM光伏控制器
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  pwm type
At this stage the drives tested were limited to PWM type rated at 460V.
      
Nason Pressure switch The Nason Pressure switch must be wired via a PWM type cable directly back to the robot controller digital input port.
      
The latter represents a frequency band in which PWM type DACs typically are sensitive to jitter.
      
  type pwm
Main power converter structure of the widely utilized diode-rectifier front-end-type PWM-VSI drive.
      
Various control strategies have been proposed in recent works on this type PWM converter.
      


A new compensative snubber is presented for eliminating the surge current and high frequency parasitic oscillation in rectified circuit of the PWM DC-DC converters. The output surge and noise voltages are de-creased over 4/5. The working principle of the sunbber is analyesd in detail, the designing formulas are derived. The theoretic analysis is consistent with the experimental results.

本文提出一种新型补偿吸收电路,消除了PWM型DC-DC变换器整流回路中的电流浪涌和高频寄生振荡,使输出尖峰干扰电压降低4/5以上。文章详细地分析了该电路的工作原理,导出了设计公式。理论分析结果与实验结果相符。

This paper puts forward a new idea of control valve, a digit-controlled proportional directional valve with input of PWM signal, which can be used in the condition of enomous inertia, colossal load and lower velocity to reduce hysteresis and crawling. The valve has a series advantages such as excellent aptipollution ability, tiny hysteresis and cheaper price and it can be controlled directly with computer.The pressure and flow rate of the valve and their pulsat ion magn itudes can be controlled by adjusting...

This paper puts forward a new idea of control valve, a digit-controlled proportional directional valve with input of PWM signal, which can be used in the condition of enomous inertia, colossal load and lower velocity to reduce hysteresis and crawling. The valve has a series advantages such as excellent aptipollution ability, tiny hysteresis and cheaper price and it can be controlled directly with computer.The pressure and flow rate of the valve and their pulsat ion magn itudes can be controlled by adjusting the duty cycle and the frequency of PWM signal. A mathematical model of the PWM digit-controlled proportional valve is set up and its theoritical analyses illustrated with experiment characteristic curves are displayed. Finally, the paper ends with the conclusion and the expeiimental charts of the static characterstics of the valve.

本文提出了一种新型的控制阀—脉宽调制(PWM)型数控比例方向阀,适用于大惯量,大负荷,低速工况,以消除滞环和爬行等现象。该阀具有抗污染能力好,滞环小,价格低廉,可用计算机直接控制等特点。 通过选择适当的脉宽占空比和脉宽调制频率可以控制阀输出的流量和压力值以及其脉动幅值大小。本文建立了PWM型数控比例阀的数学模型,对其运动情况作了理论的分析,并给出了实验曲线。同时也附上稳态特性的实验曲线

This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device. On the basis of this principle, if it adopts a PWM type of cascade connected device, the power factor is improved to a certain extent. The tested results fully prove that the thcoritical analysis is correct.Because the construction and control of this PWM type of cascade connected device are comparatively simple and the economic benefit by using of this...

This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device. On the basis of this principle, if it adopts a PWM type of cascade connected device, the power factor is improved to a certain extent. The tested results fully prove that the thcoritical analysis is correct.Because the construction and control of this PWM type of cascade connected device are comparatively simple and the economic benefit by using of this device is got.

本文论述了可控硅逆变器逆变角影响串级调速装置功率因数的基本原理。从而阐明了当采用PWM型串级调速装置时,它的功率因数可得到一定程度的改善。从研制的PWM型串级调速装置试验结果,证明了理论分析的正确性。由于这种装置的结构和控制较简单,在实际应用中能得到较大的经济效益。

 
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