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Figure 3: Dual Supply Amplifier Figure 3. Complete Complementary Symmetry Audio Amplifier Voe 9Vdc 0.14 子。 am & GANGGO DI w R1 Vin 20kn IN4002 Fle 1.2ko 02 TA + a 19 100F 0.001 Vout 10uF 2N3904 VOFF-OV VAML = 16V Freq=3 kHz R 6.8ko RE IN4002 B 1.8kn SA CEN0006 700 cs 100F w 20 9Vdc Vee BH OS aluf Part 1: Simulations (Put schematic with DC voltages showing on a single page) 1. (10%) Enter the circuit in Figure 3 into PSPICE. Use the silicon diodes from the PSPICE EVAL library 2. (15%) Perform a PSPICE DC Bias Point Analysis and turn on the voltage and current markers on the PSPICE schematic. Be sure to include this DC Bias Point schematic in your Final Technical Report. Record, in a Table, the DC voltages at the emitter, base, and the collector. COMMENT: Confirm that each BJT is operating in the Active Mode. 3. (10%) Explain the concept of a NPN transistor operating in the active mode. 2 IP
4. (10%) Explain the concept of a PNP transistor operating in the active mode. 5. (15%) Perform a PSPICE time domain (transient) simulation of the circuit of Fig. 3. Set your VSIN source for a frequency of 3 kHz and amplitude of 10 mV. Set run time = 3ms and step = 10us. Plot Vout and Vin on separate plots! Include your PSPICE schematics and plots in your prelab report. 6. (10%) From your PSPICE simulation, using PSPICE markers, calculate the amplifier voltage gain Av. Av = Youtprakareak) VinPeak Peak 7. (15%) Perform a PSPICE time domain (transient) simulation of the circuit of Fig. 3. Set your VSIN source for a frequency of 3 kHz and amplitude of 150 mV. Set run time = 3ms and step = 10us. Plot Vout and Vin on separate plots! Include your PSPICE schematic and plot in your prelab report. 8. (15%) Comment: In Part 7 above, a 3 kHz sinusoidal signal with 150 mV amplitude is applied to the input of the Dual Supply amplifier. Does distortion now appear on the Vout waveform? Explain how you describe distortion on the Vout waveform. 9. Each question in prelab 6 must have your Engineering type response to receive credit!