Approaching the filter circuit from the frequency perspective will force you to consider issues such as the filter bandwidth design and order (number of poles).
从频率的角度设计滤波器电路，必须考虑诸如滤波器带宽设计和阶数(极点的数量)之类的问题。
Having established the mathematic model of a parallel active power filter, this paper has analyzed the generation of harmonic current order and the design of its current controller in detail.
对并联型电力有源滤波器建立了数学模型，详细地分析了在全数字控制下，谐波指令的生成和电流控制器的设计。
Weak pulse signal, sensitive, vulnerable to interference, in order to eliminate the noise pulse test, the isolation circuits and multiple filter circuit design.
脉搏信号微弱、敏感、易受干扰，因此为了消除脉搏测试中的各种噪声，设计了隔离电路和多重滤波电路。
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