I am trying to understand how to compute the rms current through the output diode of a flyback with multiple outputs. To make it simpler, I did not add the leakage inductance of each windings. Here is my schematic :
Here is the result of the simulation :
What I do not understand is why I(D3), the output diode of Vout1 take all the current from the primary when the voltage at the secondaries (across L4 and L2) is superior to Vout1 and Vout2. If it is the case the two output diodes should conduct as the voltage across the diode are forward bias. The simulation said that the two output diodes conduct when vout1= vout2 ??? Is someone is able to understand what is happening ?
I(D5) -> Vout2
I(D3) -> Vout1
Thank you very much and have a nice day :)