mid2002

# mid2002 - Midterm Examination Electronic Circuits I...

This preview shows pages 1–4. Sign up to view the full content.

1 Midterm Examination Electronic Circuits I - ECSE-330A October 17 th 2002, 10:05 AM – 11:25 AM Professor David Plant Pertinent Information: 1) This is a closed-book examination, no notes permitted. 2) The examination consists of 4 problems; 36 total possible points. 3) Only the Faculty Standard Calculator is permitted.

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

View Full Document
2 Question #1 [8 pts] : A voltage amplifier with R in = 100k and R o = 100 has the following voltage transfer characteristic: The amplifier is inserted into the following circuit: a) [3 pts] Calculate the value of V DC to get the largest possible output voltage swing v out , without voltage clipping. For parts b) and c) assume the following circuit which includes the amplifier from above: b) [3 pts] Calculate the value of R necessary to provide a DC bias to the input of the amplifier which will permit the largest possible output voltage swing v out , without voltage clipping. c) [2 pts] Calculate the value of R x , the input resistance seen by v s . 4 5 -1 -2 Vin Vout v s v out R S = 10k R L = 100k V DC V s R S = 10k V out R L = 100k R R X 4V
a) For the largest possible voltage swing, we want to operate at the center of the amplifying region Æ i.e.: when Vin = [5 – (-1)]/2 + (-1) = 2V Further, Vin = V DC *(100k/[10k + 100k]) = 2V Æ V DC = 2.2V b) Still want Vin = 2V = 4V*{(R||R in )/[(R||R in ) + 10k]} Æ R||R in = 10k

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This document was uploaded on 09/30/2009.

### Page1 / 10

mid2002 - Midterm Examination Electronic Circuits I...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online