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output ripple     
相关语句
  输出纹波
     Analysis of Output Ripple Voltage of Buck DC/DC Converter and Its Application
     Buck DC/DC变换器的输出纹波电压分析及其应用
短句来源
     Energy Transmission Modes and Output Ripple Voltage of Boost Converters
     Boost变换器的能量传输模式及输出纹波电压分析
短句来源
     The minimum inductance to guarantee the lowest output ripple voltage is the critical inductance of CISM and IISM.
     CISM和IISM的临界电感即为使得变换器的输出纹波电压最低的最小电感。
短句来源
     The converter in CCM-IISM has rather larger output ripple voltage that is decreasing with the inductance.
     CCM-IISM模式的输出纹波电压较大且随电感减小而增大;
短句来源
     Output Ripple Analyse for HF Buck Converter
     高频降压变换器的输出纹波分析
短句来源
更多       
  纹波
     Analysis of Output Ripple Voltage of Buck DC/DC Converter and Its Application
     Buck DC/DC变换器的输出纹波电压分析及其应用
短句来源
     Regulated output ripple voltage : less than ±40mV;
     输出电压纹波:小于±40mV;
短句来源
     The test result indicates that the output ripple is only 45mV , the output precision is 1.5% and the convert efficiency is 84.2% at the load of 330mA.
     测试结果表明,DC-DC变换器的输出电压纹波仅为45mV,输出电压精度达到1.5%,在电源电压5V,负载电流为330mA时转换效率达到84.2%。
短句来源
     Energy Transmission Modes and Output Ripple Voltage of Boost Converters
     Boost变换器的能量传输模式及输出纹波电压分析
短句来源
     The minimum inductance to guarantee the lowest output ripple voltage is the critical inductance of CISM and IISM.
     CISM和IISM的临界电感即为使得变换器的输出纹波电压最低的最小电感。
短句来源
更多       
  纹波电压
     Analysis of Output Ripple Voltage of Buck DC/DC Converter and Its Application
     Buck DC/DC变换器的输出纹波电压分析及其应用
短句来源
     Energy Transmission Modes and Output Ripple Voltage of Boost Converters
     Boost变换器的能量传输模式及输出纹波电压分析
短句来源
     The minimum inductance to guarantee the lowest output ripple voltage is the critical inductance of CISM and IISM.
     CISM和IISM的临界电感即为使得变换器的输出纹波电压最低的最小电感。
短句来源
     The converter in CCM-IISM has rather larger output ripple voltage that is decreasing with the inductance.
     CCM-IISM模式的输出纹波电压较大且随电感减小而增大;
短句来源
     The one in DCM has the largest output ripple voltage that is also decreasing with the inductance.
     DCM模式的输出纹波电压最大且亦随电感减小而增大;
短句来源
更多       
  输出波纹
     Analysis of Output Ripple of ON/OFF Hydraulic Position Servo System
     开关式液压位置伺服输出波纹分析
短句来源
     he mechanism of output ripple creation of an ON/OFF non-symmetric cylinder hydraulic position servosystem was analyzed. The factors affecting amplitude and frequency of the output ripple were also discussed.
     论述了开关式非对称缸液压位置伺服系统输出波纹产生的机理,分析了影响系统输出波纹幅值和频率的几种因素。
短句来源

 

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      output ripple
    The result is input and output ripple that contains numerous harmonics of the switching frequency.
          
    The net effect of this is that the input and output ripple currents of the two channels tend to cancel during steady-state operation.
          
    The peak efficiency is 87% at a load current of 2A and the peak-to-peak output ripple is less than 10mV.
          
    The output ripple voltage in PFM mode is critical to minimize signal distortion, especially when the transmitted power is low.
          
    The linear regulator acts as a filter to reduce the output ripple voltage.
          
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    The phese-lockcd frequevcy multiplier described in ibis paper is a complex control system which has excellent performance in low frequency wide band operation. Since a sample-hold type discriminator is employed in this loop. the output ripple inherent in ordinary phase discriminator is restrained and the parasitic frequency modulation in frequency-multiplied output is avoided to a great degree. As a result, the time constant of low-pass filter can be kept very small, or even be zero, thus cattsing...

    The phese-lockcd frequevcy multiplier described in ibis paper is a complex control system which has excellent performance in low frequency wide band operation. Since a sample-hold type discriminator is employed in this loop. the output ripple inherent in ordinary phase discriminator is restrained and the parasitic frequency modulation in frequency-multiplied output is avoided to a great degree. As a result, the time constant of low-pass filter can be kept very small, or even be zero, thus cattsing a shortening of the capture time. Also,a specially designed AGC circuit is adopted in this loop that not onlyinsures the system stability, but also gives a good tracking performance. Thedesign principles presented in this paper have been verified experimentally.

    本文所分析的是一种作为复合控制系统的锁相倍频器,它在低频宽带运用时具有优良的性能。环路中采用了一种采样一保持型的鉴相器,抑制了普通鉴相器所固有的输出脉动分量,在很大程度上避免了倍频输出中的寄生频率调制现象;同时,低滤通波器的时问常数还可取得很小,甚至完全省去,这样又缩短了捕捉时间。环路中还增设了一种特殊设计的自动增益控制电路,既保证了系统的稳定性,又获得了良好的跟踪性能。文章对所提出的设计原则进行了实验验证。

    Considering the multi-rate sampling feature of digital flight control systems, the approach of equivalent transformation and its transformation into an equivalent single-rate system are analyzed.The method of decomposition of sampling signal in frequency domain may be utilized in this equivalent transformation. To simplify the implementation and timing on computer, the ratio of sampling rate n is often considered as an integer. Thus, the equivalent single-rate system may be represented by Z transfer function...

    Considering the multi-rate sampling feature of digital flight control systems, the approach of equivalent transformation and its transformation into an equivalent single-rate system are analyzed.The method of decomposition of sampling signal in frequency domain may be utilized in this equivalent transformation. To simplify the implementation and timing on computer, the ratio of sampling rate n is often considered as an integer. Thus, the equivalent single-rate system may be represented by Z transfer function with several parallel paths. If the integer n is such a small number as 2, 4, the computation is not very complicated.The behavior of multi-rate system is discussed. It may be illustrated by a simple system. As a high sampling rate has been introduced to one part of the system, the open-loop poles and its steady-state gain of the resulted system are not varied, only a zero is added in the real axis of the Z-plane. It implies that the margin of stability is increased, the overshoot of step response and D/A output ripple may be decreased. The unequal sampling rates can be adopted to improve system performance.Finally, the approaches to design multi-rate digital flight control system are described in brief.

    本文针对数字飞行控制系统的多速率特点,分析了等效变换的方法及变换成单速率系统的过程,并由此讨论了多速率系统的性能及其设计方法。

    This paper presents the current source system for sub-micrometer electron beam lithography system. Computer is firstly used in this system to realize the automatic adjusting. Many modern devices are adopted in the key parts of this system. Twenty independent adjustable current output have the stability of 2×10-5/1 hour.Because of the first use of Voltage-tp-Frequency Converter (VFC) in continuous adjusting current source system, a close-loop control circuit is formed. The objective lens current source which...

    This paper presents the current source system for sub-micrometer electron beam lithography system. Computer is firstly used in this system to realize the automatic adjusting. Many modern devices are adopted in the key parts of this system. Twenty independent adjustable current output have the stability of 2×10-5/1 hour.Because of the first use of Voltage-tp-Frequency Converter (VFC) in continuous adjusting current source system, a close-loop control circuit is formed. The objective lens current source which demands the best "performance has the stability of 5×10-6/4 hours. This system has the high noise immunity and output ripple is less than 1×10-5VP-P. These characteristics ensure the precision of 0.1um electron-beam spot. Its success lays a substantial foundation for the experiment of the sub-micrometer electron beam lithography system.

    本文介绍了亚微米电子束曝光机电流源系统。该系统在国内首次使用计算机实现了自动化调节,系统内关键部位使用了大量先进器件,多达20路独立可调的电流输出,稳定度均达到2×10~(-5)/1小时。其中对稳定度要求最高的物镜电源,由于首次将电压/频率转换器(VFC)用于连续可调的电源系统,形成了一个闭环反馈控制电路,使它达到5×10~(-6)/4小时的稳定度。该系统还具有很强的抗干扰能力,纹波<1×10~(-5)V_(P-P)。这些指标保证了0.1μm束斑的精度要求,它的研制成功为电子束曝光机的自动化调机奠定了基础。

     
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