Problem #1 - Common-Source Amplifier The NMOS common-source amplifier is shown below. The capacitors behave like open circuits at frequencies below the input signal frequency and short circuits at the design frequency. The bias circuit is shown to the right. Find the following values: Usig Usig Rsig = 200 ΚΩ O 00 HH RB1 10 ΜΩ Rin www |11 +15 V 5 ΜΩ 16 ΚΩ ∞0 00 7kΩ Ξ 16 ΚΩ (a) Find Vt of the MOSFET, if Vov = 0.3 V, and the drain current is Ip = 0.4 mA (b) Assuming 9m = 1.5 mA/V and ro = 300 kn, draw the small-signal equivalent circuit for the amplifier (shown below), showing all the correct values for the resistors. Rsig = 200 ΚΩ Vo Vgs 8mUgs Thrgani RB2 ro RD RL Ove Rin (c) Find Rin using the small-signal equivalent circuit. (d) Find R, using the small-signal equivalent circuit (do not include R₂) (e) Find the numerical ratios vgs/vsig and vo/Vsig using the small-signal equivalent circuit.

Problem #1 - Common-Source Amplifier The NMOS common-source amplifier is shown below. The capacitors behave like open circuits at frequencies below the input signal frequency and short circuits at the design frequency. The bias circuit is shown to the right. Find the following values: Usig Usig Rsig = 200 ΚΩ O 00 HH RB1 10 ΜΩ Rin www |11 +15 V 5 ΜΩ 16 ΚΩ ∞0 00 7kΩ Ξ 16 ΚΩ (a) Find Vt of the MOSFET, if Vov = 0.3 V, and the drain current is Ip = 0.4 mA (b) Assuming 9m = 1.5 mA/V and ro = 300 kn, draw the small-signal equivalent circuit for the amplifier (shown below), showing all the correct values for the resistors. Rsig = 200 ΚΩ Vo Vgs 8mUgs Thrgani RB2 ro RD RL Ove Rin (c) Find Rin using the small-signal equivalent circuit. (d) Find R, using the small-signal equivalent circuit (do not include R₂) (e) Find the numerical ratios vgs/vsig and vo/Vsig using the small-signal equivalent circuit.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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