Page 1. (a) Prove that if the voltage across a resistor Ri is a sine wave with amplitude Vcc, then the average power dissipated during one cycle is given by Vec/2R (b) A Class B BJT output stage...
1. (a) Prove that if the voltage across a resistor RL is a sine wave with amplitude Vcc, then the average power dissipated during one cycle is given by Vc/2RL (b) A Class B BJT output stage is shown in Fig. 1. Assume that Vout (t)-Vcc sinwt; Voc >> VCE(sat); and ß - oo. Also ignore any crossover distortion effects due to the deadband in the voltage transfer characteristic. Sketch the waveforms for Ici (t), Ic2(t), and IL(t) (c) Find...
2. Consider a class B BJT output stage with a square wave output voltage of amplitude Vo across a load Ri. and employing power supplies Vss. Neglecting the effects of finite VBE and VCEs (i.e., assume both VBE and VcEsat are negligible small) determine the load power, the supply power, the power conversion efficiency, the maximum attainable power conversion efficiency and the corresponding value of Vo. 2. Consider a class B BJT output stage with a square wave output voltage...