Patent ID: 7050310

Claim:
A synchronous rectification circuit with dead time regulation connected to a secondary side of a transformer, an inductor, a first switch and a second switch for producing DC power, said circuit comprising: a first switch control circuit connected to one terminal on the secondary side of said transformer and to said first switch, said first switch control circuit including (a) a waveform shaping circuit connected to one terminal on the secondary side of said transformer, said waveform shaping circuit shaping an input voltage to output a first driving voltage, and (b) a first driver circuit connected to said waveform shaping circuit and to said first switch, said first driver circuit receiving said first driving voltage and producing a first control signal to control ON/OFF of said first switch; a dead time regulation circuit connected to said DC power and to said first driver circuit, said dead time regulation circuit receiving said first control signal and producing a dead time regulation signal; and a second switch control circuit connected to one terminal on the secondary side of said transformer, to said second switch and to said dead time regulation circuit, said second switch control circuit receiving said input voltage from the secondary side of said transformer and said dead time regulation signal to control ON/OFF of said second switch.