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