DC-TO-DC VOLTAGE CONVERTER Russian patent published in 2015 - IPC H02M3/00 H02M3/335 

FIELD: electricity.

SUBSTANCE: invention relates to conversion equipment, particularly to high-frequency converters for converting dc voltage to high-power dc voltage with galvanic isolation of circuits, and can be used in electrical circuits of dc power sources for various purposes. The disclosed device comprises a control unit and a transformer, the primary coil of which is connected to the middle points of two diagonals of a transistor bridge, each formed by two series-connected transistors, and the secondary coil of the transformer is connected to a load through rectifier diodes and an output capacitor. According to the disclosed solution, the device further includes two transistor diagonals, each consisting of two transistors, and an additional transformer, the primary coil of which is connected to the middle points of additional transistor diagonals, and the secondary coil is connected through additional rectifier diodes to the output capacitor and to the load, wherein the control unit enables to generate four pulse sequences with partial time overlapping of one pulse with two adjacent pulses.

EFFECT: high efficiency, providing transistor switching at virtually zero current, resulting in the multifold reduction of dynamic losses on transistors of the converter.

2 cl, 3 dwg