RESONANT DC/DC CONVERTER AND MULTIPHASE RESONANT DC/DC CONVERTER

摘要

PROBLEM TO BE SOLVED: To provide a resonant DC/DC converter that implements improved output controllability while suppressing an increase in the number of components.;SOLUTION: A resonant DC/DC converter 20 includes a transformer including a primary coil L1 and a secondary coil L3, and rectification diodes connected to the secondary coil L3. The rectification diodes are provided with an assist circuit 22 for assisting a resonant operation, and an LC filter connected subsequently to the assist circuit 22. The assist circuit 22 comprises a capacitor C2 and an inductor L5. In a multiphase resonant DC/DC converter, outputs are coupled in the assist circuit 22 or the LC filter and a phase difference between multiple phases is changed to control an output voltage.;COPYRIGHT: (C)2015,JPO&INPIT