• A novel method to develop a frequency synthesizer with wide frequency coverage, fast frequency switching speed, and low phase noise is proposed.

    提出一种相对覆盖相位噪声的捷变频频率合成方法

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  • The direct digital frequency synthesis (DDS) is a kind of new frequency synthesis method. It has high frequency resolution, fast frequency switching speed, etc.

    直接数字频率合成(DDS)新的频率合成方法具有频率分辨率高切换速度快等优点

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  • The main merits of DDS are high resolution and fast frequency switching speed, but the defects of low output frequency and bad spurious performance restrict the application of DDS.

    DDS主要优点分辨率高捷变速度但是输出频率和较性能制约了其应用

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  • The generated signals have advantages of high frequency resolutions, fast frequency switching speed, low phase noise, the ability to switch frequencies while maintaining constant phase.

    具有频率分辨率、频率切换速度快频率切换相位连续、输出相位噪声低等优点。

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  • It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.

    具有很高切换速度频率可以用来作为流量高速开关阀的先导控制阀可以流量回路直接作为控制阀使用。

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  • Arcing: The RFI (radio frequency interference) generated by high voltage switching may disrupt high speed logic circuits.

    电弧高压切换产生RFI(射频干扰)可能干扰高速逻辑电路

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  • To achieve the precision control of phase current or phase flux linkage in switched reluctance motor (SRM), the higher switching frequency of converter is required to increase dynamic response speed.

    为了实现开关磁阻电机(SRM)绕组电流精确控制必须提高SR M功率变换器的工作频率提高系统的动态响应速度

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  • It has great advantages of frequency stability, high frequency resolution, speed of frequency switching, simple analysis of phase noise and spurious, small size and low power.

    具有频率稳定度、频率分辨率高、频率切换速度快相位噪声散干扰分析相对简单体积小、功耗低等优势

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  • Meanwhile, PWM inverters using high switching frequency device that shortens the rise time of PWM output pulse have been widely applied in high-speed AC driving locomotive.

    同时高速交流传动机车广泛采用开关频率器件宽调制(PWM逆变器,使得逆变器输出脉冲具有上升沿。

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  • The FM response magnitude and phase variation effects laser on the high speed frequency switching.

    FM响应大小相位变化影响激光器高速频率交换。

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  • The speed of switching component is the primary factor that influences boosting frequency of inverter. Compared with IGBT, MOSFET can be used to improve dynamic responding speed.

    开关开关速度影响逆变焊机频率提高主要因素通过比较IGBTMOSFET的优缺点,认为MOSFET焊机可以获得较好的动态响应速度。

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  • Three different architectures (time, space and frequency-division) are used in high speed and real time switching systems.

    高速实时的光交换系统中有时分、空分频分主交换方式。

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  • The results indicate that the proposed controller is capable of maintaining the torque switching frequency constant and reducing the torque ripple, particularly at low speed.

    结果表明提出控制器可以保持开关频率恒定降低转矩脉动尤其低速时。

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  • Solenoid valve is open and fast speed, and tends to be used in a small volume and small pressure to the switching frequency of the local electric valve big contrast.

    电磁开和快关,一般流量压力要求开关频率地方电动阀反之。

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  • High Speed Switching: Frequency Translators listed are measured from any set value to any value.

    高速开关:所变频器任何设定值任何值之间进行衡量。

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  • High Speed Switching: Frequency Translators listed are measured from any set value to any value.

    高速开关:所变频器任何设定值任何值之间进行衡量。

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