An energy conserving drive circuit is provided for switched mode power converters having a transformer with primary current controlled by a main power switch {HEAD ~ whose conduction} is in turn controlled by {TAIL ~ a pulse width modulator} 
is controlled by
An energy conserving drive circuit is provided for switched mode power converters having a transformer with primary current controlled by a main power switch { HEAD ~ whose conduction } is in turn controlled by { TAIL ~ a pulse width modulator }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL