Answer Happy

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 72 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. 4) Assuming calculate the chopping frequency f? 5) Calculate the rms output voltage 6) Calculate the output power 7) Calculate the effective input resistance of chopper 8) V-Constant L-0.8 H calculate the new maximum load current Imax 9) V. - Constant L=0.8 H calculate the new maximum load current Imin Exercise 2: (12 Marks) The specifications for the circuit shown below include the following v(t) = 220 √2 sin(at) :f = 60 Hz, a = 60° 8=215°, R=200, and L=10 mH. 10) Calculate the average output voltage ar 11) Calculate the average output current ar 12)We added a free-wheeling diode across the load, calculate the average output voltage at its terminals 13) Calculate de output power 14) Calculate the output current at oot 150°