2 full bridge with 2 secondary winding in series... is it possible?
This is OK, it's not a problem what you've done but note that the two individual bridge outputs are not isolated and this means they can't be connected together (N1 to N2) without the voltage levels changing. If you want a +V, 0V and -V supply use this: -







simulate this circuit &ndash; Schematic created using CircuitLab