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Posted: **Tue Apr 26, 2022 2:00 pm**

: Circuit V1 Lu Vb Ri 2n Vb Z V Be The It Reale If The 10 Figure 8 Voltage Divider Bias Circuit V1 12v Ra 100k Ri Vout 1 (28.58 KiB) Viewed 32 times

: Circuit V1 Lu Vb Ri 2n Vb Z V Be The It Reale If The 10 Figure 8 Voltage Divider Bias Circuit V1 12v Ra 100k Ri Vout 2 (37.38 KiB) Viewed 32 times

: Circuit V1 Lu Vb Ri 2n Vb Z V Be The It Reale If The 10 Figure 8 Voltage Divider Bias Circuit V1 12v Ra 100k Ri Vout 3 (34.01 KiB) Viewed 32 times

: Circuit V1 Lu Vb Ri 2n Vb Z V Be The It Reale If The 10 Figure 8 Voltage Divider Bias Circuit V1 12v Ra 100k Ri Vout 4 (28.49 KiB) Viewed 32 times

Circuit V1 lu VB RI 2N VB z V Be the It reale+ If the + 10 Figure 8: Voltage divider Bias Circuit V1 12V Ra 100k RI Vout Q: IF 2004 Vin R4 10k R2 1k Figure 9: Common Emitter Amplifier Procedures: (a) Connect the circuit in Figure 8. Measure the point and record the Vco) and lovas- (b) Calculate and record the bias voltage Va (c) Calculate the current lor. Note that when the BJT is in saturation, Ves = 0V.
(d) Next, connect 2 additional capacitors to the common and base terminals as per Figure 9. (e) Input a 1 kHz sinusoidal signal with amplitude of 200mVp from the function generator () Observe the input and output signals and record their peak values, Observations & Results 1. Q-point measurement Calculated value Measured value Vce(a) lco) = Calculate the values of Vco) and Ice (Show your workings below) 2. Calculate the value of Bias voltage, Ve (Show your workings below) 3. Calculate the collector saturation current losat). Assume Vce = OV for BJT in saturation (Show your workings below) losat)
Electrical and Electronics Principles 2 ENGE2036 Lab 2 ALADEMY 4. Capture a screenshot of the signal at the base of the transistor. Indicate the bias voltage 5. Capture a screenshot of the signal at the output (at the common terminal). Indicate the amplitude of the output signal when Vin = 200mV Measure the (peak-peak voltage) of the output signal = What is the voltage gain of the amplifier circuit? (Hint: Vout/Vin) 6. Comment on the amplitude phase of the output signal with respect to the input signal. 7. Reduce the R1 (collector resistor) to a lower value

For example replaced with a 2k resistor) what difference do you see in the output? State the function of R1 and R2 in the common emitter amplifier. 8. What is the purpose of the capacitors (C1 and C2) in this circuit?
ACADEMY 9. Measure the current Ic and le and state the operating region of the transistor in the circuit. 10. Connect a bypass capacitor (1MF) across R2 (emitter resistor). Comment on the output signal amplitude. 11. Increase the input to the amplifier; do you see a signal distortion in the output? Why do you think this is happening?