A full-wave diode bridge rectifier is shown in Fig. 1. The input voltage is v.-311sin(100ft) V....

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A full-wave diode bridge rectifier is shown in Fig. 1. The input voltage is v.-311×sin(100ft) V. The load resistor R is 10 22. (25 points) P DE D DA DA N Vd R Fig. 1. (a) Sketch the waveforms of the output voltage va and current id, indicate the peak values. (6 points) (b) Calculate the average value of va and current id. (6 points) (c) If the diodes D₁-D4 are replaced by thyristors T₁-T4, respectively, to form a controllable rectifier. The firing angle of T₁ and 72 and the firing angle of T3 and T4 are both Sketch the waveforms of the output voltage va and current id, indicate the peak values. (6 points) (d) Based on (c), calculate the average value of va and current id. (7 points) A full-wave diode bridge rectifier is shown in Fig. 1. The input voltage is v.-311×sin(100ft) V. The load resistor R is 10 22. (25 points) P DE D DA DA N Vd R Fig. 1. (a) Sketch the waveforms of the output voltage va and current id, indicate the peak values. (6 points) (b) Calculate the average value of va and current id. (6 points) (c) If the diodes D₁-D4 are replaced by thyristors T₁-T4, respectively, to form a controllable rectifier. The firing angle of T₁ and 72 and the firing angle of T3 and T4 are both Sketch the waveforms of the output voltage va and current id, indicate the peak values. (6 points) (d) Based on (c), calculate the average value of va and current id. (7 points)