Dual opposed interleaved coupled inductor soft switching converters

摘要: The power converter of this invention accomplishes zero voltage switching at both turn on and off transitions four primary switches (220, 224, 228, 232). A pair coupled inductors (242 244) serve as energy storage devices isolation mechanisms. stored in the is used to drive resonant transitions. availability a inductor for driving transition dependent timing secondary (250 252) whereby delayed until complete. behaves interleaved buck converters with oppositely directed magnetizing currents. During first half cycle, while one output, other uncoupled current source, setting winding currents equal inductor. which output appears an filter capacitor or source during cycle. alternate cycle roles two are reversed. from states maintained unchanged has been completed so that switch respect thereby making available transition. connected open complete accomplishing