Question

A certain full bridge type inverter circuit has its rms value of fundamental load current component given by W. The fundamental frequency component of the load current would be given by

(a) W sin ωt

(b) (W/√2) sin ωt

(c) √2 W sin ωt

(d) sin ωt

This question was addressed to me in an interview for job.

My enquiry is from Single Phase VSI-4 topic in section Inverters of Power Electronics

Answer 1

The correct answer is (c) √2 W sin ωt

The explanation: The fundamental frequency component of the load current is given by Im sin ωt

As W = Irms  . . . (Given)

Im = √2 Irms = √2 W.