Question

In a single-phase half-wave circuit with RL load and a freewheeling diode, the freewheeling period is

(a) 0 to π

(b) α to π+α

(c) π to 2π+α

(d) π/2 to 2π-α

The question was posed to me during an interview.

I'm obligated to ask this question of Single-Phase HW AC-DC-3 in portion Converters of Power Electronics

Answer 1

Correct choice is (c) π to 2π+α

Easiest explanation: Freewheeling period is the one in which the FD diode conducts.