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 濾(lv)波(bo)(bo)(bo)器是(shi)由電(dian)(dian)容(rong) 電(dian)(dian)感和(he)電(dian)(dian)阻組成的(de)濾(lv)波(bo)(bo)(bo)電(dian)(dian)路。濾(lv)波(bo)(bo)(bo)器可以對電(dian)(dian)源線(xian)中(zhong)特定(ding)頻(pin)(pin)率(lv)的(de)頻(pin)(pin)點以外的(de)頻(pin)(pin)率(lv)進行有效的(de)濾(lv)除，得到一個特定(ding)頻(pin)(pin)率(lv)的(de)電(dian)(dian)源型號，或消除一個特定(ding)頻(pin)(pin)率(lv)后的(de)電(dian)(dian)源信(xin)號。濾(lv)波(bo)(bo)(bo)是(shi)信(xin)號處理的(de)一個主(zhu)要概念，在(zai)直(zhi)流(liu)(liu)穩壓電(dian)(dian)源中(zhong)濾(lv)波(bo)(bo)(bo)電(dian)(dian)路的(de)作用(yong)是(shi)盡可能(neng)減少脈動的(de)直(zhi)流(liu)(liu)電(dian)(dian)壓中(zhong)的(de)交(jiao)流(liu)(liu)成分，保(bao)留其直(zhi)流(liu)(liu)成分，使(shi)輸出電(dian)(dian)壓紋波(bo)(bo)(bo)系數降低，波(bo)(bo)(bo)形變得比較平穩。
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