Which of the following are the functions of feedback diodes in a McMurray inverter?
1. To free-wheel the load current
2. To provide required reverse bias across the outgoing thyristor
3. To provide the return path for the reactive current of load
4. To provide a path for the excess of commutation current above the load current
Select the correct answer using the codes given below:1
2, 3 and 4
2
2 and 4
3
1, 2 and 3
4
3 and 4