Could I have some tips about switching transformer in inverter welders?

22 January 2014 1 9K Report

For example which turn ratio is used in commercial inverter welders. Actually i used 3:1 turn ratio but because of week coupling between coils, output voltage drops with increasing power. Is it better to use 2:1 turn ratio?

Mohammad Monfared

Just increase the number of turns by a factor of 2 or 3. However, I strongly recommend you to use the boot-strap technique in bridge topologies to get rid of switching transformers.

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