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سؤال 426

How can unwanted ringing and audio instability be prevented in an op-amp audio filter?

  1. Restrict both gain and Qپاسخ درست
  2. Restrict gain but increase Q
  3. Restrict Q but increase gain
  4. Increase both gain and Q

توضیح

High stage gain combined with high Q leaves too little gain and phase margin, so the filter rings on transients or breaks into oscillation. Keeping both gain and Q per stage modest, and cascading stages when more selectivity is needed, keeps it stable.

ادامهٔ این آزمون

شروع تمرین
سؤال 426: How can unwanted ringing and audio instability be prevented… · FCC Amateur Extra Class (Element 4) · Questena