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Hi,

I'm studying op amp and it feedback to control the gain. I do not understand how we can go from looking at the circuit of the op amp and determine the beta values. How did the term B (beta) equal to the voltage divider (R1/R2+R1)? Sf or Vf, how did they redraw the op amp circuit or the feedback block diagram into an voltage divider??

enter image description here

Hi,

I'm studying op amp and it feedback to control the gain. I do not understand how we can go from looking at the circuit of the op amp and determine the beta values. How did the term B (beta) equal to the voltage divider (R1/R2+R1)?

enter image description here

Hi,

I'm studying op amp and it feedback to control the gain. I do not understand how we can go from looking at the circuit of the op amp and determine the beta values. How did the term B (beta) equal to the voltage divider (R1/R2+R1)? Sf or Vf, how did they redraw the op amp circuit or the feedback block diagram into an voltage divider??

Source Link
Ace8888
Ace8888
  • 41
  • 1
  • 1
  • 5

Op Amp & Feedback

enter image description here

Hi,

I'm studying op amp and it feedback to control the gain. I do not understand how we can go from looking at the circuit of the op amp and determine the beta values. How did the term B (beta) equal to the voltage divider (R1/R2+R1)?