Question

A single phase full bridge inverter has load R = 2 Ω, and dc voltage source Vs = 230 V. Find the rms value of the fundamental load current.

(a) 96 A

(b) 0 A

(c) 103 A

(d) none of the mentioned

I got this question at a job interview.

My question is based upon Single Phase VSI-4 topic in division Inverters of Power Electronics

Answer 1

Correct answer is (c) 103 A

The best I can explain: The fundamental component of voltage = (4Vs/π) sinωt.

Peak value Vm = 4Vs/π

Rms voltage = 4Vs/π√2 = 207 V

Current = 207/2 = 103.5 A.