Sep 11, 2015 - Obtain ICQ, IBQ, VCEQ, VB, VC, and VBC for a fixed bias circuit shown in Figure 1. Figure 1. Figure 2. 4.
epartment of Electronics & Communication Engineering EC1101 Basic Electronics 09.11.2015 Assignments No. 3
Section: B
1. Calculate and for the changes in the collector current from 4 mA to 3 mA w.r.t. the change in the base current from 40 µA to 30 µA 2. Determine the value of , and for the BJT having the specifications , =100, and . 3. Obtain ICQ, IBQ, VCEQ, VB, VC, and VBC for a fixed bias circuit shown in Figure 1.
2kΩ 200kΩ
10kΩ
40kΩ 9V
12V
=100
=50 40kΩ
1kΩ
Figure 1 Figure 2 4. Obtain Q-point in the case of voltage divider emitter bias circuit shown in Figure 2. 5. Find the output voltage for the circuit shown in Figure 3. 12kΩ
1µF 10kΩ
2kΩ A +
Figure3 Figure 4 6. Design an Op. Amp based amplifier that delivers the output voltage with unity gain and also output voltage should be in the same phase that of the input voltage. 7. Draw the output wave shape of the integrator circuit shown in Figure 4 for ±!V input voltage with 0.5ms duration for positive voltage and 0.5ms for negative voltage. 8. Draw the circuit of a difference amplifier using Op. amp. Design the value of external resistances so that output is equal to 10 times the difference of the two inputs.
