Assignment 3 TASK 1: (LO3.1) Part 1 Using simulation software (Multisim), build the Class A audio amplifier circuit, with an input of 1mV (p-p) 12kHz. a) Measure the voltage gain of the amplifier with 8ohm load b) Measure the voltage gain of the amplifier without a load c) Calculate the input impedance. d) Measure is the input impedance. PART 2 Using simulation software (Multisim), build a 2 stage Class A amplifier circuit using the amplifier circuit from Part 1 and adding a second transistor amplifier connecting the output of the first amplifier circuit to the input of the second amplifier circuit. a) Measure the voltage gain of the amplifier. b) Measure the power gain of the circuit. Task 2 (LO3.2) Part 1 Create a table showing the load/ non-load output values of the single stage and compare them with the two stage amplifier output values. Amplifier Iin Iout Vout A(v)Gain P in P out Power Gain (dB) 20 Log(Po/Pin) Single – no-load Single – 8ohm Two-stage Which amplifier gives the most power output into a 8ohm (speaker) load? Part 2 Explain why the amplifier you chose in part 1 is the best for driving a speaker of 8ohms. Opportunity for Merit Research Single and Two-Stage Class A and class B amplifiers, and include and explanation about which type amplifier is the most efficient. M1 Opportunity for Merit Create a MS PowerPoint presentation about single and two-stage class A and Class B amplifiers. M3 Task 3 For this task, you have been tasked with the design of a simple Class A amplifier which will provide a 1kHz sine wave signal to the following specification: Gain 15 Vcc 15 Ic mA (Quiescent) 2 a) Show your design with all calculations for R1, R2, C1, C2, RC, RE. b) Using simulation software (Multisim), evaluate your design against the specification required. You are required to tabulate the results obtained and provide annotated record of the input and output waveforms. Vb IE(mA Ic(mA) Vout A(v)Gain Measured value TASK 4: (LO3.4) a) From the circuit designed and simulated in TASK 3 above, build the actual designed circuit and using Multisim , confirm that the design conforms to the original specifications. B) Discuss your findings, highlighting any differences found between your theoretical design (calculated) and actual (simulated or real) design produced. Opportunity for Distinction Build the circuit from, TASK 4 on Multsim , modify it to increase the gain by a factor of 2 and discuss how the design can be altered to increase the ac signal gain by a factor of 2 at a frequency of 10kHz. Include photgraphic evidence of circuit build and demonstrate the working circuit to your tutor