IC693MDL734CA濾波器的極點(diǎn)和零點(diǎn)位置由抽取率和調(diào)制頻率決定。這說明，用戶可以自由地調(diào)諧濾波器頻率響應(yīng)以便支持應(yīng)用。三階sinc濾波器的幅度響應(yīng)如圖10中紫色曲線所示。同預(yù)期一樣，幅度在較高頻率時縮小，但幅度也有特征陷波頻率；在這些頻率，衰減趨近。陷波頻率由調(diào)制器時鐘和抽取率決定

IC693MDL734CA如果陷波頻率與相電流頻譜的邊帶相同，就能非常有效地衰減逆變器開關(guān)噪聲。舉個例子，考慮逆變器開關(guān)頻率fsw為 10 kHz，ADC調(diào)制器時鐘fM為8 MHz，抽取率DR為800。這樣，陷波頻率為n × 10 kHz，響應(yīng)如圖10所示。注意每個邊帶是如何被陷波衰減的。

IC693MDL734CA

Perkins UMC2004GACA Digital Weight Indicator Stainless 

Allen Bradley AB 150-A24NBDB SMC MCC Bucket 30A 10 HP

Westinghouse Breaker LB LB2400FS 400Amp A 400A 400 Amp

Fischer Porter 53MC5412A25BACX?DXCXX Controller 53MC5

Square D Circuit Breaker EGB24030 30Amp 30A 30 Amp A

Fischer Porter 53MC5412A25BAXX?DXCXX Controller 53MC5

Fischer Porter 53MC5412A24BBXX?XXXXX Controller 53MC5

Perkins 4328A Digital Weight Indicator Stainless Steel

Federal Pacific 145 kVA 460/460Y/266 3 ph 145kVA 460 Y 

Omron S82G-3312 12V/2.5A Power Supply S82G3312

EI Ratio 200:5A 64201 64-201 600 Current Transformer CT

Endress Hauser RIA450-S111 Process Indicator Loop

ABB 53MC5412A25BACX?DXCXX Controller 53MC5

Cutler Hammer Eaton Breaker JS JS360150A 150 Amp A 150A

Cutler Hammer Eaton Breaker JS360125A 125 Amp A

Cutler Hammer Eaton Breaker FS FS340070A 70Amp A 70A

Cutler Hammer Eaton Breaker NS361200A 1200 Amp 1200A A

Cutler Hammer Eaton Breaker FC FC3015 15 Amp 15A A

Square D CT 200:5A 600V 74 74-201 Current Transformer

Omron S82G-0305 5V/6A Power Supply S82G0305

Westinghouse DB25 DB 25 600 Amp Digitrip RMS/R 500 CLS

Foxboro I/A P0400VR Control Processor P0400 VR PO400VR

Cutler Hammer Westinghouse HFD 65k HFD3060 60 Amp 60A A

Cutler Hammer Westinghouse EHD EHD3035L 35Amp A 35A

Cutler Hammer Westinghouse LD3600 600Amp 600 A

With Rating plug LT3600T

CH Westinghouse FD FD3030L FD3030 30 Amp 30A A 30Amp

C-H CH Westinghouse HND3800T107W Optim 800 Amp 800A A

Cutler Hammer Westinghouse Breaker EHD2020 20 Amp A 20A

Cutler Hammer WH KDB KDB3400W KT3400T KDB3400 400 A Amp

Cutler Hammer Westinghouse LD LD3300 300Amp A 300A