IC693MDL734CA滤波器的极点和零点位置由抽取率和调制频率决定。这说明,用户可以自由地调谐滤波器频率响应以便支持应用。三阶sinc滤波器的幅度响应如图10中紫色曲线所示。同预期一样,幅度在较高频率时缩小,但幅度也有特征陷波频率;在这些频率,衰减趋近。陷波频率由调制器时钟和抽取率决定
IC693MDL734CA如果陷波频率与相电流频谱的边带相同,就能非常有效地衰减逆变器开关噪声。举个例子,考虑逆变器开关频率fsw为 10 kHz,ADC调制器时钟fM为8 MHz,抽取率DR为800。这样,陷波频率为n × 10 kHz,响应如图10所示。注意每个边带是如何被陷波衰减的。
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