DIRECT CURRENT CONVERSION DEVICE

摘要

A direct current conversion device comprises a series circuit of a first switch (Q1) and a primary winding (5a) of a transformer (T1) connected to both ends of a direct current power supply (Vdc1), a series circuit of a snubber capacitor (C3) and a second switch (Q2) connected to both ends of the first switch (Q1), a rectifier circuit having a diode (D1) connected between one end of a secondary winding (5b) tightly coupled to the primary winding (5a) on the core and one end of a tertiary winding (5c) loosely coupled to the primary winding (5a) on the core and a diode (D2) connected between the connection point of the diode (D1) and the one end of the tertiary winding (5c) and the other end of the secondary winding (5b), a capacitor (C4) connected between the other end of the tertiary winding (5c) and the other end of the secondary winding (5b), and a control circuit (10) for alternately turning on/off the first switch (Q1) and the second switch (Q2).