Question

____________ is the boundary for C.C.M and D.C.M mode in 3-Φ Full wave bridge rectifier for R load.

(a) 60°

(b) 10°

(c) 80°

(d) 50°

I had been asked this question by my college professor while I was bunking the class.

My doubt stems from Solid-State Switching Circuits in section Introduction to Solid-State Switching Circuits of Electric Drives

Answer 1

The correct answer is (a) 60°

Best explanation: 60° is the boundary for C.C.M and D.C.M mode in 3-Φ Full wave bridge rectifier for R load. Conduction will only remain from 60°+α to 120°+α.