nothing happenSince you are using a transformer from another amp, lower the Fosc to around 50KHz and see what happens.
I made SMPS for a car amplifier,
but there is un expectable spike on it
this is the waveform at IDLE
View attachment 4500
1A load
View attachment 4501
heavy loads (<3A output)
View attachment 4502
this is data of my transformer
View attachment 4503
View attachment 4504View attachment 4505
can u pleas tell me ,what is the reason of that matter.and what do I do to resettle this ,
thank you.