EE212

INTRODUCTION TO ELECTRONIC ENGINEERING

HW#2

Q1. Calculate the VCE voltage of the transistor below. (?=200 VBE=0.6V)

Q2. The transistor used in the circuit has a ? of 200 and its VBE is 0.6V. The desired operating

conditions for the transistor are VCE=12V IC=1mA. Calculate the necessary R2 and RE to

satisfy operating conditions.

RC = 6.2k

RB = 1M

VCC = 12V

RC = 10k

VCC = 24V

R1 = 270k

R2 = ?? RE = ??

Q3. Calculate the collector currents and VCE voltages of transistors given below. (?=200

VBE=0.6V)

Q4. Calculate the collector currents and VCE voltages of transistors given below. (?=200

VBE=0.6V)

VCC = 12V

R4 = 3.9k

R4 = 120k

R4 = 51k

R1 = 100k

VEE = -12V

T2T1

VCC = 10V

R6 = 5.6k

R3 = 3.9k

R4 = 6.2k

R2 = 140k

VEE = -10V

T2T1

R1 = 43k R5 = 5.6k