Each filter has flexible adjustability of its time window and frequency bandwidth. Therefore, high mode resolution and short observation time window can be self-adaptively achieved.
每个滤波单元时频域带宽柔性可调,能根据测量要求自适应取得较高的模式分辨率和较短的观测时窗长度。
It has been shown that the designed DC switching mode converter has a stable output voltage frequency, small ripple, high operating frequency and low power consumption.
结果表明,所设计的直流开关型变换器集成模块输出电压稳定、纹波小、工作频率,高、功耗低,且体积小。
The master control chip uses AT89C51, the communication mode adopts DTMF signal with strong anti-interference and high reliability, and simplex frequency modulation.
主控芯片采用AT89C51单片机,通信方式采用抗干扰能力强、可靠性高的DTMF信号和单工调频的无线通信方式。
The rational harmonic mode-locking has become a research subject of intense interest due to its application on the generation of ultra- high repetition frequency optical pulse train.
有理数谐波锁模技术是产生高速超短脉冲的重要技术之一,其光时分复用通信技术等领域中有重要的应用价值。
A novel topology of high frequency link DC ac converter with bi directional flyback mode is proposed, and its operational principle and control strategy are introduced briefly.
提出了一种新颖的双向电流源高频链DC A C功率变换器的拓扑结构,并简要地阐述了其工作原理和控制方案。
The key to realize the goal is the technology of ferrite used in high frequency switching mode power supply(SMPS).
而制约这一目标实现的关键技术就是开关电源用铁氧体材料的高频化技术。
However, the chattering with high frequency in sliding mode control systems is barrier for the application to the practice engineering problems.
然而滑模变结构控制带来的高频抖振是其应用到实际系统中的障碍。
This kind of material is already extensive now to be used for common mode choke of high frequency circuit changer, high frequency dc-to-ac converter, zero order mutual-inductor and etc.
这种材料现已广泛用于共模扼流圈、高频开关电源、高频逆变器、零序互感器等许多电器元件。
A high frequency single-ended flyback switching power supply is designed with current-mode PWM controller UC3842 chip as its core.
设计了一种以电流型PWM控制器UC3842芯片为核心的高频单端反激式开关稳压电源。
This paper presents computation and analysis of tangential mode of high frequency combustion instability in FY-20 liquid propellant rocket engine by means of the annular instability model.
本文用环形不稳定性计算模型计算、分析了FY -20液体火箭发动机的切向高频燃烧不稳定性。
Recently, adoption of the high frequency switch mode power supply and the processing controller based on the programmable chip are the trend of the development of laser technology.
近年来出现的高频开关电源技术和以可编程芯片为核心的控制技术也逐渐在激光器设计中得到应用。
This control system retains the positive properties of conventional sliding mode control, which simplifies the process of design and solves the problem of high frequency shaking.
这种控制方式既保留了传统非线性变结构控制的优点,又简化了设计,解决了高频抖动的问题。
It operates both in current mode at high output load and in pulse frequency modulation (PFM) at light load to reduce the power dissipation.
它在重载下工作于电流控制模式,轻载下工作于脉冲频率调制(PF M)模式来降低功耗。
In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。
In the solution of high frequency variation of ERP from VLBI observations, the direct solution mode with the consideration of the pole offsets is accordingly recommended.
为此,在基于VLBI资料解算erp高频变化时,建议采用直接求解模式,并考虑岁差章动模型偏差的影响。
In a high frequency induction plasma, We have determined the temperatures of torch as derived from the measurement of Spectral lines and the mode of Boltzmann diagram.
根据光谱线的测量和波兹·曼图解法,我们测量了高频电感等离子体焰炬的温度。
It overcomes many shortages of former system, such as simplicity of control mode, many hidden troubles, high-frequency accidences, frequent stops, bad system stability, great accident danger.
克服了原系统控制方式简单、隐患点多,事故频发,停机频繁、系统稳定性差、存在极大的事故隐患等诸多缺点。
In some embodiments, the converter has a third sub-mode (' high output power sub-mode '), in which pulse width modulation is used but the switching frequency is fixed at a second frequency.
在某些实施例中,转换器具有第三子模式(“高输出功率子模式”),其中使用脉冲宽度调制,但开关频率固定在第二频率。
Current mode theory enables design of super wide frequency band, super high speed analog switches by introducing circuit structures and principles.
采用电流模理论和电流模电路设计超宽频带、超高速度模拟开关。
A novel high frequency link flyback inverter which works in the continuous conduction mode (CCM) is presented.
研究了一种高频链反激逆变器拓扑及其工作在电感电流连续模式下的控制方案。
It can be typically used in high frequency common mode inductors and ADSL wide-band transformers.
其典型应用是高频共模电感和ADSL变压器。
Based on comparison between the two kinds of voltage mode high-frequency link inverter, we choose unidirectional high-frequency link inverter which is easy to realize.
并通过对两种电压源高频链逆变器的比较,确定采用容易实现的单向型高频链逆变器结构。
The high switching frequency, along with the PWM current-mode architecture, allows for a compact, all-ceramic capacitor design.
高开关频率,随着PWM电流模式架构,允许一个紧凑,全 陶瓷电容设计。
After compares, a unidirectional power flow mode inverter using high frequency link is selected as the main topology and the inverter is controlled by P87LPC768 that is made by Philips.
经过比较,选用单向电压源高频链逆变器作为逆变电源的主电路拓扑,采用的飞利浦单片机P 87lpc 768为该电源的主控芯片。
The high frequency parasitic parameters of common mode(CM) choke significantly influence the performance of electromagnetic interference(EMI) filter for conducted EMI suppression.
共模扼流圈的高频特征极大地影响了电磁干扰(EMI)滤波器抑制传导EMI噪声的性能。
Several dipole antenna models were proposed to modeling the near electromagnetic field of high-frequency switched mode power supplies (SMPS).
讨论了用于开关电源辐射建模的基本偶极子天线模型,给出了各模型电磁场的解析解。
Several dipole antenna models were proposed to modeling the near electromagnetic field of high-frequency switched mode power supplies (SMPS).
讨论了用于开关电源辐射建模的基本偶极子天线模型,给出了各模型电磁场的解析解。
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