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Engineering · Electrical Engineering
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pd iile:/y/C UsersiUser/Desk STEC20BAE 0114 pdl klop/MECHATRONICS/AI Question 2 (20 marks) A single transistor amplifier circuit is shown in Fig. 2. The circuit is operating at room temperature with Vi 0.7V and V 26mv. Assume the output resistance of the transistor, ro s much bigger than R cc 20V 1.0 M2 RB 10k2 out Vin o B 75 Fig. 2 (a) State the amplifier configuration of this circuit. 12 marks] (b) Calculate the base current la and collector current lo. marks] Calcula he voltage across the collector and the emitter (VCE) 2 marks (d) Draw the equivalent simplified, low-frequency small signal model for this arnplifier, Lal your diagram clearly bel 4 ma l (e) Find the small signal voltage gain of this amplifier. 4 marks The bandwidth of this amplifier configuration tends to be low due to high capacitance resulting from the Miller effect. Give two (2) suggestions to mitigate this problem 4 marks 2:08 PM 303/20

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