Question

Choose the correct statement

(a) Circulating current exists only in circulating current mode

(b) Circulating current exists only in non-circulating current mode

(c) Circulating current exists in both the circulating and non-circulating current mode

(d) none of the mentioned

I have been asked this question at a job interview.

The above asked question is from Dual  Converters-2 topic in section Converters of Power Electronics

Answer 1

Right answer is (c) Circulating current exists in both the circulating and non-circulating current mode

To elaborate: The circulating current does exist in both the converter circuits, but it is avoided by using a reactor in non-circulating type and by operating only one circuit in case of circulating type.