Exercise 1:(15 Marks) A 100 V battery supplies RL load through a DC chopper. The load has a freewheeling diode across it

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Exercise 1 15 Marks A 100 V Battery Supplies Rl Load Through A Dc Chopper The Load Has A Freewheeling Diode Across It 1 (37.27 KiB) Viewed 31 times

Exercise 1:(15 Marks) A 100 V battery supplies RL load through a DC chopper. The load has a freewheeling diode across it is composed of 0.5 H in series with 792 resistor. Load current, due to improper selection of frequency of chopping, varies widely between 9A and 10.2 A. (Imax = 10.2A and Imin = 9 A) 1) Find the average load current 2) Find the average load voltage 3) Find the duty cycle of the chopper. di AI 4) Assuming calculate the chopping frequency f? ar 5) Calculate the rms output voltage 6) Calculate the output power 7) Calculate the effective input resistance of chopper 8) Vay = Constant L=0.8 H calculate the new maximum load current Imax 9) Vav Constant L=0.8 H calculate the new maximum load current Imin