Two-way DC-DC converter

摘要

Rectifying elements are connected in parallel with switching elements (4-1 through 4-4) in a switching section (4) for the lower voltage side and rectifying elements are connected in parallel with switching elements (5-1 through 5-4) in a switching section (5) for the higher voltage side. An LC resonant circuit (6) is provided between the winding wire (3-2) for the high-voltage side in the transformer (3) and the switching section (5) for the higher voltage side; current which flows on the primary side and the secondary side is changed into a sinusoidal one; and switching is executed in the vicinity of the zero crossing points of the currents.