# quiz2_sol - v t = 1V and k = 1mA / V 2 . Which region is...

This preview shows pages 1–2. Sign up to view the full content.

EE 101 Handout #14 Prof. Abbas El Gamal February 18, 2002 Quiz #2 Solution Problem 1: Consider the circuit in the ±gure below. Write the node voltage equations for the circuit in the matrix form Y e = ˜ i . The matrix Y and the vector ˜ i must be in terms of R 1 , R 2 , R 3 , v s , i s 1 , and i s 2 only. Write your answer in the spaces below. v s i s 2 i s 1 R 1 R 2 R 3 R 4 n 1 n 2 n 3 Solution: 1 0 0 - 1 /R 3 1 /R 2 + 1 /R 3 0 0 0 1 /R 4 e 1 e 2 e 3 = v s i s 1 i s 2 - i s 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Problem 2: Consider the nMOS transistor circuit in the fgure, assuming frst order static model with
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: v t = 1V and k = 1mA / V 2 . Which region is the transistor operating in? Find R . Put your fnal answers in the box below. 5V 8mA 2kΩ R Solution: The transistor is in saturation, since v ds = 5 ≥ v gs-v t = v gs-1. Thus i d = k 2 ( v gs-v t ) 2 . Substituting, we obtain 8mA = 1mA 2 ( v gs-1) 2 , which gives v gs = 5V, and there±ore R = ∞ ....
View Full Document

## This note was uploaded on 04/06/2010 for the course EE 102 taught by Professor Pingli during the Fall '08 term at Shanghai Jiao Tong University.

### Page1 / 2

quiz2_sol - v t = 1V and k = 1mA / V 2 . Which region is...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online