need PSIM help with Full Bridge Converter

[~MJS]

Hello All,

I am trying to simulate a full bridge converter with synchronous rectification (schematic.bmp). I would like to monitor the gate signals to the transistors, but the scope does not appear to pick up switch signals.

I found a not so elegant work around (see the mess circle red in schematic.jpg). I was wondering if there is some easier way.

The problem seem to be the output of the alpha control (see subcircuit.jpg).


Any suggestions would be greatly appreciated.

 

[~MJS]

FYI: (e-mail from Powersim)

At the moment, the output of the alpha controller cannot be observed by the oscilloscope. As an alternative, can you observe the current through the switch that the alpha controller is controlling? You will be able to use a current sensor to bring out the current, and use the oscilloscope to observe it.