In a push pull converter during turn on a switch magnetizing current and load reflected current build up. So magnetizing inductance store energy. During both switch off state secondary coil does not carry current. But what about the built up magnetizing current? Current in the inductor can not instantly goes to zero. But when both switch off waveform shows primary current is zero. So my question is where does the charged magnetizing current discharges?
According to this picture, input current/primary current, Iin comprises of secondary current iL and magnetizing current im during sw1 on and sw2 off. What happens to this current when both switch is off? If the current is zero during both switch off, becuase there is no free wheeling path, then how can primary winding of transfromer allow such abrupt current change to zero without creating harm to switch or destroying something?