Chapter 3.1DEADLINE: Nov. 281. Given the basic composition and the principle of the single-phase bridge fully-controlled rectifier.2. For a single-phase bridge fully-controlled rectifier with a resistor-inductance load, U2=100V, R=2Ω and the value of L is large enough. When the firing angle is 30°,(1)Given the curves of Ud, id and i2.(2)Given the values of the average output voltage Ud and the average output current Id.(3)Given the effective value of the secondary side current of transformer.(4) In order to guarantee the safety operational condition of the thyristor, the values of the rated voltage and current for the thyristor should be given.(For a thyristor, the rated voltage is 2-3 times of the maximum voltage. And the rated voltage is (1.5-1.2)/1.57 times larger than the effective value of the current).