A chopper operating at a fixed frequency is feeding an RL load. As the duty ratio of the chopper is increased from 25% to 75%, the ripple in the load current is
A. Remains constant
B. Decreases, reaches a minimum at 50% duty ratio and then increases
C. Increases, reaches a maximum at 50% duty ratio and then decreases
D. Keeps on increasing as the duty ratio is increased
Answer:A
A chopper operating at a fixed frequency is feeding an RL load. As the duty ratio of the chopper is increased from 25% to 75%, the ripple in the load current is
A. Remains constant B. Decreases, reaches a minimum at 50% duty ratio and then increases C. Increases, reaches a maximum at 50% duty ratio and then decreases D. Keeps on increasing as the duty ratio is increased