A Method for Compensating the D/A Converter Frequency Response Distortion in Different Nyquist Zones

2019 ◽  
Author(s):  
Yongxing Lan ◽  
Jun Zhu ◽  
Chaonan Wang
Keyword(s):  
Frequency Response ◽  
Response Distortion

Negative feedback

2021 ◽  
pp. 363-377
Author(s):  
Geoffrey Brooker
Keyword(s):  
Control System ◽  
Frequency Response ◽  
Negative Feedback ◽  
Response Distortion ◽  
Voltage Amplifier ◽  
Formal Definitions ◽  
Positive And Negative Feedback ◽  
Return Difference

Negative feedback is an essential constituent of any control system. It is illustrated for the case of an electronic voltage amplifier. Formal definitions are given of positive and negative feedback. Feedback can be used to adjust the amplifier's frequency response. Distortion, meaning generation of new and unwanted frequencies (harmonics, sums, differences), is reduced by a factor equal to the “return difference”.

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