CONVERTER Russian patent published in 2020 - IPC H02M1/14 H02M5/458 

FIELD: conversion equipment.

SUBSTANCE: technical result is achieved due to converter (13) comprising rectifier (20), which is supplied with external alternating voltage of specified frequency (fs) of supply network, inverter (30) and intermediate circuit (40) containing capacitor (41) and electrically connected between rectifier (20) and inverter (30). According to invention, absorbing circuit (50) is electrically parallel to condenser (41) of intermediate circuit, which at series resonance frequency corresponding to double frequency (fs) of supply network, forms a series resonant circuit and has low impedance, absorbing circuit (50) together with intermediate circuit capacitor (41) forms a parallel resonance circuit at a parallel resonant frequency and has high impedance, electrically parallel to condenser (41) of intermediate circuit and absorbing circuit (50) is connected damping absorbing circuit (60), comprising resistor (R) and magnetically connected to absorbing circuit (50), at that, voltage falling on absorbing circuit (50) at parallel resonant frequency is transmitted by means of magnetic coupling to damping absorbing circuit (60), as a result, resistor (R) of damping absorbing circuit (60) damps parallel resonance of absorbing circuit (50).

EFFECT: technical result consists in reducing effect of interference on output voltage.

9 cl, 3 dwg