EE222 Week 3
12-2) Given the same values as the previous problem, calculate I d for the enhancement mode only.
Given values are VGS(off) -2v and IDSS= 4mA. Since enhancement mode requires VGD to be positive I
am only using 0.5, 1.0, and 1.5V
Calculate the input-coupling circuit and output-coupling circuit low-frequency cutoff points for
the circuit shown below.
Connect the Bode Plotter as shown, and use the setting in the figure. Set the function generator
amplitude to 5mVp and 10Hz.
List all devices and meters
DC power source
1 Zener Diode
1 potentiometer 50
Vary it from 0 to 50. For each setting of RL, measure Vout and record it in the table.
Assuming VZ = 5.73V, calculate the Vout, IS
Work Problem 11-4, pg. 462.
Work Problem 12-8, pg. 517.
EE222 Week 4
Q.14; correct ans is 69.59dB. (-15 pts)
14-2) Suppose an op amp has a midband voltage gain of 500,000. If the upper freq. is 15Hz what
does the freq. response look like?
It looks exactly like figure 14-2a in the textbook. Found
EE222 Week 2
11-2) A 2N5640 has a gate current of 1A when the reveres voltage is -20V and the ambient
temperature is 100C. What is the input resistance of the gate?
20/.000006 = 20,000,000
Gate input resistance is 20M
11-6) A 2N5462 has Ldss
EE222 Week 6
16-2) Stated CMRR is 100dB, to convert that you do this:
X=105 or 100,000
100dB converted to decimal number is 100,000
a. 0.5/2(1)= 0.07962
power bandwith (fmax)= 79.62khz
QUESTION 1 Work Problem 21-8 p. 954
Find DC base voltage:
Find DC emitter current:
DC Emitter Current = 4mA
Find Collector Emitter Voltage:
12-0.004*1000 = 12-4 = 8