MULTI-OUTPUT DC/DC CONVERTER CONTROLLING THE SWITCHING OF A RECTIFYING TERMINAL BY SYNCHRONIZING WITH A SWITCHING SIGNAL USED FOR CONVERTING THE POWER WITHOUT A STEP-DOWN CHOPPER CIRCUIT

摘要

PURPOSE: A multi-output DC/DC converter is provided to reduce the loss of the power by performing a zero current switching control of an output terminal in synchronization with the switching signal of a power converter.;CONSTITUTION: A switch switches an input DC power alternatively and converts the DC power into the AC power. A first transformer(200) includes a single transformer. The single transformer transforms the AC power from the switch into the first power with a voltage level according to a turn ratio. A second transformer(300) includes the single transformer magnetically independent of the first transformer. The single transformer transforms the AC power from the switch into the second power with the voltage level according to the turn ratio. A first rectifier(400) rectifiers the first power from the first transformer and outputs the first DC power. A second rectifier(500) rectifies the second power from the second transformer and outputs the second DC power by switching the rectified power. A controller(600) is synchronized with the switching of the switch and controls the switching of the second rectifier.;COPYRIGHT KIPO 2010