a) Design an AB-class sound amplifier according to the following criteria and draw the circuit diagram and
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Question:
a) Design an AB-class sound amplifier according to the following criteria and draw the circuit diagram and give the values of all circuit elements.
-Supply voltages will be taken ± 10 V.
-Two 4 Ohm speakers will be connected to the output in series.
-The biasing (ie bias) circuit will be designed with the “VBE multiplier” circuit (Is = 10^-13 A).
-Total output power will be 5 Watt.
-It is desirable that the calm current is 2 mA.
B(Beta) = 100 for output transistors to be used.
b) Calculate the efficiency of the designed circuit.
c) In the designed circuit; Draw the collector current, VEC voltage and power consumption in the pnp transistor (give the values of the important points).
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