I read that the h-bridge driving a transformer primary of an inverter whould benefit from a phase in which the primary is short circuited, before being switched to the opposite current.
How much this affect the overall performances of an inverter? Which are the reasons?
Is there any chip providing such a driving strategy?
REFERENCE
A Review of Inverter Design and Topologies page 8, see the figure:
"Off time shorting"
Best Answer
I'm hardly an expert on the subject, but the idea seems to be to better approximate a sine wave by having a period of 0V between the peaks. The explanation is in the document you cite:
Then they introduce the "Modified Square Wave":
Up to this point they are only talking about a push-pull topology. The section you ask about is then describing the same technique, but with an H-bridge topology.