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An open-loop amplifier can be described by

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A dominant pole is to be inserted such that a closed-loop amplifier with a low-frequency gain of 50 has a phase margin of 45 degrees.

(a) Determine β and the required dominant pole frequency.

(b) The feedback transfer function is increased such that the closed-loop, low-frequency gain of the amplifier in part (a) is 20. Determine the phase margin of this new amplifier.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M91982782

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