SHUVAEV'S MULTIPHASE RESONANT VOLTAGE CONVERTER Russian patent published in 2024 - IPC H02M3/338 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular, converting equipment, and can be used in the design and development of secondary power supplies for various purposes. Multiphase resonant converter contains k power cascades, each of which consists of charging and discharging key transistors, resonant capacitor and choke, transformer with charging and discharging primary and secondary windings, as well as a rectifier unit consisting of a set of forward and reverse diodes and a smoothing filter, and a control device. Charging transistor, capacitor, choke and charging primary winding of the transformer are connected in series, connected to the power supply terminals and form an oscillating resonant charging circuit, discharge transistor and discharge primary winding of transformer are also connected in series, connected to terminals of series-connected capacitor and choke and form discharge circuit. Terminals of the rectifier unit are connected to the terminals of the secondary windings of the transformer. Control device consists of the number of channels corresponding to the number of transistors and provides the supply of control pulses to the base of the transistors of the charging and discharging circuits alternately, during each half-period of their on state, time intervals are provided between charging and discharging control pulses and half-periods of natural oscillations of the resonant circuit, control pulses are supplied with time intervals between them, duration of control pulses remains constant in all operating modes of the converter.

EFFECT: reduction of volume and weight and increase of efficiency of resonant voltage converter due to reduction of power losses in key transistors at their switching and improvement of coefficients of using elements by current, voltage and power.

4 cl, 17 dwg