If active filter circuit is adopted, wet tantalum capacitor will face test of high voltage and high frequency.
一旦采用有源滤波电路，钽电容器将面临高压和高频性能的严峻考验。
But the integrated operational amplifier bandwidth is limited, so the current active filter circuit is difficult to do very high operating frequencies.
但集成运放带宽有限，所以目前的有源滤波电路的工作频率难以做得很高。
The basic operation principle of the series active power filter for harmonic suppression of frequency converter is analyzed in this paper, and its control method and control circuit are studied.
文章分析了适用于变频器谐波抑制的串联型有源电力滤波器的基本工作原理，并对其控制方法和控制电路进行了研究。
The active filter based on dual DSP can improve the performance of filtering, restrain the resonance between LC circuit and electrical network, and improve dynamic performance of compensation system.
采用基于双dsp结构的有源滤波器可以大大改善滤波性能，并能抑制LC电路与电网之间的谐振，提高补偿系统动态性能。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
The circuit structure, control method and system characteristics of the hybrid type series active power filter are discussed.
对串联混合型有源电力滤波器的电路结构、系统特性、控制方法等进行探讨与分析。
The paper discusses the method of establishing active switched-capacitor filter (SCF) Z-domain equivalent circuits model using Z-domain admittance of the basic switched-capacitor (SC) circuit.
本文讨论了用基本开关电容（SC）电路的Z域传输导纳，建立有源开关电容滤波器（SCF）等效Z域模型的方法。
According to the equivalent circuit model of non-linear load, a detecting approach of harmonic current in single-phase circuit based on fast iterative algorithm in active power filter is proposed.
根据非线性负载的等效电路模型，提出了一种基于快速跟踪算法的有源电力滤波器单相电路谐波电流检测方法。
In this paper, a realization of active continuous time OTA-C filter with leapfrog structure is discussed and the formulas of circuit design are give.
本文讨论了使用跨导运放(OTA)和电容(C)实现跳耦结构的有源滤波器，给出了电路设计公式。
The theoretic analysis is accomplished on the circuit topology, principle, harmonic detecting method, control method and circuit designing of Parallel Hybrid Active Power Filter (PHAPF).
其次，文章重点对电容注入方式的并联混合型有源电力滤波器的电路结构、工作原理、谐波检测方法、控制方式、电路设计进行了理论分析。
Whether the hybrid active power filter could get desirable effects of harmonic suppression depends on the constancy of DC-side voltage besides the correct design of the main circuit.
有源滤波器能否按其工作原理实现预期的谐波抑制效果，除了主电路设计合理之外，在很大程度上还依赖于保持直流侧电压的恒定。
A new multifunction active-C filter is presented. The circuit is composed of four OTAs and two capacitors.
本文提出了一个新的多功能有源c滤波器，该电路由四个OTA和两个电容器构成。
As a new filtering device used in single phase circuit, hybrid type series active power filter is a combined system of shunt passive filter and series active filter.
串联混合型单相电力有源滤波器是串联有源滤波器与并联无源滤波器组合而成的单相电路新型滤波装置。
By applying frequency analysis method to a standard active band-pass filter circuit, a formula to calculate characteristic frequencies is offered.
根据标准有源带通滤波器原理，采用频域分析法，可得出有源带通滤波器的特征频率计算公式。
In view of the topology of the hybrid active power filter with injection circuit, analysis its principle in detail, as well as choice the desirable resonance frequency.
本文针对混合型有源电力滤波器的电路拓扑，介绍了无源注入支路的基本工作原理，重点阐述了如何选择注入支路的调谐频率。
This paper describes the system structure and basic operation principle of the series active power filter, and its control method and control circuit are studied and analyzed.
介绍了串联型电力有源滤波器的系统结构和基本工作原理，对其控制方法和控制电路进行了分析和研究。
The study is focused on the application realization of Active Power Filter with Single Injection Circuit and gives a further study of the key technologies of APF.
论文以单独注入式有源电力滤波器的工程实现为主线，对有源滤波器的关键技术进行了研究。
For short - circuit faults occurring in power systems, the behavior of shunt active power filter APF is analyzed. It is concluded that the overcurrent phenomena will happen during the fault period.
对并联型电力有源滤波器(APF)在电力系统发生各种短路故障时的行为进行了分析，得出了在系统发生故障期间APF会发生过流现象的结论。
This paper introduces a digital control system of series hybrid type active power filter used in single-phase circuit, which employs a DSP processor.
本文介绍串联混合型单相电力有源滤波器的一种基于DSP芯片的数字式控制系统。
This paper introduces an active power filter device used for three phase four wire. The compensation principle and structure of main circuit and control circuit are given.
主要介绍用于三相四线制的有源电力滤波装置的研究工作，给出了系统的基本补偿原理、主电路及控制电路结构，并利用该装置进行了补偿实验。
The active filter and the main circuit are look as the generalized active filter and the inverse of its model is used as the controller to control the active filter.
此方法把有源滤波器及主电路部分看作广义有源滤波器并利用其逆模型作为控制器对其进行控制。
Noise which comes from both active and passive circuit element in loop filter will deteriorate phase noise of output signal.
环路滤波器中的有源和无源器件均有噪声产生，此类噪声会叠加在输出信号上，从而恶化输出信号的相位噪声。
Noise which comes from both active and passive circuit element in loop filter will deteriorate phase noise of output signal.
环路滤波器中的有源和无源器件均有噪声产生，此类噪声会叠加在输出信号上，从而恶化输出信号的相位噪声。
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