(Solved): Figure Q.2 shows a class A transformer-coupled power amplifier. The ac load line produces symmetric ...

Figure Q.2 shows a class A transformer-coupled power amplifier. The ac load line produces symmetrical ic and Vee signals at the Q-point. For the transistor, VcE/SAT = 1.2 V and lco = 1 A. (0) Sketch and label clearly the DC and ac load lines. All workings must be shown clearly. (5 marks) (ii) Show that the transformer's primary resistance, n = 20.4 22. (2 marks) N (iii) Determine the transformer's turn ratio, N. (2 marks) (iv) Calculate the maximum power efficiency, %n(max). (4 marks) (v) Is this amplifier achieved the theoretical maximum power efficiency? Justify your answer. (2 marks) Vcc = +24 V N.NO + R 33022 RL 42 Vo 22 F R2 842 RE 2.4? CE w 47 F Figure Q.2