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