Ass6 - 1 ECED3201: Introduction to Electronics Fall 2009...

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 ECED3201: Introduction to Electronics Fall 2009 Dalhousie University, Department of Electrical and computer Engineering Assignments #6 Problem 1 - [4 points]: The circuit below is designed for a collector current of I C =1mA. Assume = 100 and I S = 6.9510-16 A, and V BCon = 0.4V for the npn BJT ( Q 1 ). Q 1 +5V R E = 200 W R C = 2k W +5V R 2 = 10k W R 1 Fig. 1 a) Determine the value of R 1 and verify the operating region of Q 1 . b) If R E deviates by +5% from its value of 200, find the new value of the collector current . Problem 2 - [5 points]: In the circuit of Fig.2, V C = 2V, V BE 0.7V and V BCon = 0.4V. If V CC = 5V, R C = 3 k W , and a signal v be = 0.005sin t volts is applied: a) Find the expressions for the total instantaneous quantities i C (t), v C (t), and i B (t). The transistor has = 100. b) What is the voltage gain? Fig.2 2 Problem 3 - [5 points]: You want to use a PIC microcontroller to drive a motor in a clockwise direction at either...
View Full Document

Page1 / 2

Ass6 - 1 ECED3201: Introduction to Electronics Fall 2009...

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

View Full Document Right Arrow Icon
Ask a homework question - tutors are online