Bi-directional DC-DC converter for snubber circuit and bi-directional DC-DC converter

摘要

PROBLEM TO BE SOLVED: To provide a small, lightweight, and economical snubber circuit for a bidirectional DC-DC converter along with the bidirectional DC-DC converter which is excellent in regenerative efficiency and can regulate an input voltage ratio over a wide range.;SOLUTION: One capacitor C6 and two diodes D1 and D2 are used to constitute a double voltage rectification circuit, constituting a snubber circuit (70) for a bidirectional DC-DC converter (2). It is inserted between a bidirectional semiconductor switch block (6) of the bidirectional DC-DC converter (2) and an LC filter (8), to re-rectify a spike current occurring at an inductor L of the LC filter (8). The current is applied to an input side or output side of the bidirectional DC-DC converter (2).;COPYRIGHT: (C)2004,JPO