DIRECT-TO-DIRECT VOLTAGE CONVERTER Russian patent published in 2000 - IPC

FIELD: secondary power supplies, in particular, for supplying radio electronic equipment. SUBSTANCE: device has two single-ended circuits, each of which has transistor, transformer with primary, secondary, demagnetization and additional circuits. Secondary circuits are connected to filter, which is shared by circuits. Secondary winding of one transformer and additional winding of another transformer in each circuit are connected in series aiding. Demagnetization of transformer is achieved by running current through its demagnetization winding and recuperation diode to load. In addition device has rectifier using MIS transistors. Said filter is designed as LCT-filter, which output serves as device output. First terminal of secondary winding of each transformer of circuit is additionally connected to drain of closing transistor of filter. Second terminal of secondary winding of each transformer is connected through additional winding of another transformer to drain of respective transistor of synchronous rectifier. Their drains are connected to second terminal of LCT-filter and source of closing transistor of filter. EFFECT: increased efficiency. 2 dwg