NETWORK FILTER Russian patent published in 2016 - IPC H02M1/16 

FIELD: electronic equipment.

SUBSTANCE: invention can be used for prevention of abrupt changes in current circuits with devices powered by AC, prevent long-term supply of excess voltage in load circuit and power-saving active and reactive energy. Network filter comprises included in gaps of each of line conductors inductor core and electric current filter inductor core provided with at least one additional winding connected between line conductors capacitor and at least two filter-adjusting circuits, input of each of which is connected to output of one of additional windings connected in series to line wires, reducing inductance with cores and coils create a backflow monitoring device, and first and second pairs of electronic switches, thus reducing inductance of its findings via first and second pairs of electronic switches are connected to line wires and monitoring device is connected between line conductors after filter-adjusting circuits and control outputs are connected to first and second pair of electronic switches.

EFFECT: device signficantly saves electric power.

4 cl, 1 dwg