Question

In a single phase semi converter with resistive load and a firing angle α, each SCR and freewheeling diode would conduct for

(a) α, 0°

(b) π-α, α

(c) π+α, α

(d) π-α, 0°

I got this question during an interview for a job.

My doubt is from Single Phase FW AC-DC-5 in portion Converters of Power Electronics

Answer 1

Right answer is (d) π-α, 0°

The explanation: FD does not come into the picture for resistive loads.