RESONANT VOLTAGE CONVERTER Russian patent published in 2024 - IPC H02M3/335 

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. Resonant voltage converter comprises two damped oscillatory circuits, each of which consists of series-connected resonant capacitor, primary winding of electromagnetic element, which combines functions of resonant choke and transformer, and switch transistor with free-wheeling diode. Rectifier and a smoothing filter are connected to the outputs of the secondary winding of the electromagnetic element. Converter also includes a control device. Unlocking pulses are supplied to the key transistors, the duration of which is not less than the duration of the damped oscillatory process of the circuit, and is kept constant by control device in all operating modes of converter, regulation of output voltage of which is provided by changing duration of time intervals between pulses. Oscillatory circuits operate alternately during the period of switching of transistors. All elements of the converter, except for transistors and inverse diodes, operate at high natural frequency of oscillatory circuits, and transistors and diodes operate at low frequency of switching of transistors.

EFFECT: reduced volume and weight of elements and increased efficiency of resonant voltage converter due to reduction of power losses at switching of power transistors.

1 cl, 2 dwg