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Q.6. a) Draw the differential small-signal half-circuit for the circuit shown in Figure 2.2. Clearly show the input, output, grounds and label all resistors. [3 marks] b) Draw the transfer characteristics ( vcovsic ) of Q1 and Q2. [2 marks] c) For the circuit shown in Figure 2.3, assume that β = 100. Calculate the voltage gain and the input resistance. [6 marks] [11 marks] Figure 2.2: Circuit for Q6 a/b Figure 2.3: Circuit for Q6 c

Q.6. a) Draw the differential small-signal half-circuit for the circuit shown in Figure 2.2. Clearly show the input, output, grounds and label all resistors. [3 marks] b) Draw the transfer characteristics ( vcovsic ) of Q1 and Q2. [2 marks] c) For the circuit shown in Figure 2.3, assume that β = 100. Calculate the voltage gain and the input resistance. [6 marks] [11 marks] Figure 2.2: Circuit for Q6 a/b Figure 2.3: Circuit for Q6 c

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Q.6. a) Draw the differential small-signal half-circuit for the circuit shown in Figure 2.2. Clearly show the input, output, grounds and label all resistors. [3 marks] b) Draw the transfer characteristics ( v c o v s i c ) of Q 1 and Q 2 . [2 marks] c) For the circuit shown in Figure 2.3, assume that β = 100 . Calculate the voltage gain and the input resistance. [6 marks] [11 marks] Figure 2.2: Circuit for Q6a/b Figure 2.3: Circuit for Q6c

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