,也可由RC 元件和有源器件構成的有源濾波器。根據(jù)幅頻特性所表示的通過或阻止信號頻率范圍的不同,濾波器可分為低通濾波器(LPF)、高通濾波器(HPF)、帶通濾波器(BPF)、和帶阻濾波器(BEF)四種
2008-09-24 11:11:38
sallen-key二階有源低通濾波器仿真設計
2023-04-18 14:45:40
2650 
階有源濾波器的典型結構,二階有源低通濾波器仿真分析
2022-11-15 12:46:44
930 定義低通濾波器:允許低于一定值的低頻信號無衰減地通過,高于一定值的信號按不同程度地被衰減、阻擋。有源低通濾波器是由有源元件和一部分無源元件(電阻、電容、電感)共同組成的低通濾波器。有源元件指的是必須
2022-01-10 14:27:27
26 View the reference design for AN_Active_Filters. http://www.brongaenegriffin.com/soft/ has thousands of reference designs to help bring your project to life.
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5 這幾乎就是復現(xiàn)!但后來發(fā)現(xiàn),由于當時還沒有討論與SPICE有關的故障,因此出現(xiàn)了一個問題,它涉及到人們對運算放大器模型的選擇。
2021-04-14 14:07:07
10622 
本文檔的主要內(nèi)容詳細介紹的是有源低通濾波器的實驗電路原理圖免費下載。
2021-03-31 16:03:40
37 2021-01-05 10:51:00
2 2021-01-05 10:50:24
1 2021-01-05 10:49:39
8 2021-01-05 10:46:03
3 2020-12-30 19:32:43
14 2020-12-30 19:32:06
5 2020-12-30 19:30:43
3 2020-12-30 19:30:08
2 2020-12-30 19:24:43
6 2020-12-30 19:17:23
4 2020-12-30 19:15:28
5 2020-12-30 19:14:50
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3 2020-12-30 19:12:03
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6 2020-12-30 19:10:53
3 ti應用報告文檔,介紹了有源低通濾波器的設計要點,主要講了二階有源低通濾波器,根據(jù)資料中的介紹,可以直接使用表格中的數(shù)據(jù),對元器件參數(shù)直接計算。
2019-12-16 08:00:00
28 電源濾波器是由電容、電感和電阻組成的濾波電路。濾波器可以對電源線中特定頻率的頻點或該頻點以外的頻率進行有效濾除,得到一個特定頻率的電源信號,或消除一個特定頻率后的電源信號。
2017-11-22 15:49:56
4184 
濾波器主要用來濾除信號中無用的頻率成分,例如,有一個較低頻率的信號,其中包含一些較高頻率成分的干擾。濾波過程如圖13.02所示。 而帶通濾波器是由低通RC環(huán)節(jié)和高通RC環(huán)節(jié)組合而成的。要將高通的下限
2017-09-14 11:41:48
36 低通濾波器是用來通過低頻信號衰減或抑制高頻信號,典型的二階有源低通濾波器由兩級RC濾波環(huán)節(jié)與同相比例運算電路組成,其中第一級電容C接至輸出端,引入適量的正反饋,以改善幅頻特性。增益為1的二階有源低通濾波器如圖所示。
2017-07-24 14:36:00
28600 
有源濾波的主要形式是有源RC濾波,也被稱作電子濾波器。如上有源低通濾波器電路圖的主要作用是對音頻解碼芯片CS4360輸出的音頻信號進行低通濾波,把無用的高頻信號過濾掉。
2017-07-24 14:25:00
37379 
濾波器是一種能使有用頻率信號通過而同時抑制無用頻率信號的電子裝置,有源濾波器實際上是一種具有特定頻率響應的放大器,它是在運算放大器的基礎上增加一些R、C等無源元件而構成的,利用電容同高頻阻低頻,電感
2017-07-24 12:05:45
95498 
低通濾波(Low-pass filter)是一種過濾方式,規(guī)則為低頻信號能正常通過,而超過設定臨界值的高頻信號則被阻隔、減弱。但是阻隔、減弱的幅度則會依據(jù)不同的頻率以及不同的濾波程序(目的)而改變。
2017-07-21 10:37:02
13984 
低通濾波器的作用是抑制高頻信號,通過低頻信號。簡單理解,可認為是通低頻、阻高頻。低通濾波器包括有源低通濾波器和無源低通濾波器。
2016-10-09 16:46:32
36768 
介紹有源低通濾波器,掌握小型模擬系統(tǒng)的組裝和調(diào)試技術,掌握查閱有關資料的技能?;救蝿帐窃O計一個小型模擬電子系統(tǒng)
2015-11-02 17:23:51
54 本文以有源低通濾波器設計為例介紹了一種電路優(yōu)化設計的方法,通過優(yōu)化設計能使某些性能要求比較高,調(diào)試比較困難的電路,使其降低元器件精度要求,簡化調(diào)試,提高性能
2010-07-27 10:21:13
94 任意階無漂移全極點有源低通濾波器因信道無漂移特性而具有廣泛的應用價值.針對該有源低通濾波系統(tǒng)模型不能表述為二階節(jié)級聯(lián)形式,其參數(shù)設計復雜的問題,根據(jù)統(tǒng)計靈敏度
2010-03-01 18:13:34
8 每倍頻程衰減-18dB的有源低通濾波器電路(RC4558DN組成)
如圖所示為每倍頻程衰減-18dB的有源低通濾波電路。該電路由每倍頻程衰減-6dB的無源濾波器和
2009-12-07 17:28:29
3388 
LM102組成的有源低通濾波器電路
2009-12-07 17:11:39
2144 
實用有源低通濾波器電路
2009-12-07 12:07:29
2440 1KHz簡易有源低通濾波器
2009-09-17 14:54:12
4882 
每倍頻程衰減-18dB的有源低通濾波器
2009-04-15 10:43:53
1211 
具有銳截止特性的有源低通濾波器
2009-04-15 10:38:20
566 
摘 要 本文以有源低通濾波器設計為例介紹了一種電路優(yōu)化設計的方法,通過優(yōu)化設計能使某些性能要求比較高、調(diào)試比較困難的電路,使其降低元器件精度要求、簡化調(diào)試、提
2008-07-27 22:13:28
164
三階RC有源低通濾波器電路圖
計算公式為截止頻率F=1/(WR1C1),R1=R4=2R2=2R3,C1=10C .
2008-05-09 10:44:13
14311 
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