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lucenzo97
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I am a bit confused about this differential base-emitter resistance.

ItI has been said that raspberry pir_pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explainexplains why or when should raspberry pir_pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

It has been said that raspberry pi doesn't have much influence on small signal input impedance when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explain why or when should raspberry pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

I has been said that r_pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explains why or when should r_pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

IIt has been said that r_piraspberry pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explainsexplain why or when should r_piraspberry pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

I has been said that r_pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explains why or when should r_pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

It has been said that raspberry pi doesn't have much influence on small signal input impedance when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explain why or when should raspberry pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

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lucenzo97
  • 2.5k
  • 6
  • 38
  • 71

I am a bit confused about this differential base-emitter resistance.

I has been said that r_pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Why? Emitter resistor will be most probably bypassed by capacitor, so emitter can't really have much influence on small signal input impedance.

Can someone please explains why or when should r_pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

I has been said that r_pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Why? Emitter resistor will be most probably bypassed by capacitor, so emitter can't really have much influence on small signal input impedance.

Can someone please explains why or when should r_pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

I am a bit confused about this differential base-emitter resistance.

I has been said that r_pi doesn't have much influence on small signal input impedance, when CE with emitter degeneration is used. Well, I doubt this claim.

Can someone please explains why or when should r_pi be neglected in small signal input resistance calculus for CE with emitter degeneration?

enter image description here

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lucenzo97
  • 2.5k
  • 6
  • 38
  • 71
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