NOISE-PROOF TRANSFORMER Russian patent published in 1996 - IPC

FIELD: electrical and radio engineering. SUBSTANCE: noise-proof transformer is designed for use in power supply sources of digital technical equipment having increased sensitivity to interference. It includes magnetic core with primary 3 and secondary 4 windings. Both windings are potted in jacket 8 of resin with high-frequency ferromagnetic filling agent. Screen 5 made of sheet of current conductive material with cut shunted by resistive element is placed between primary and secondary windings. Secondary winding 4 is divided into sections. Magnetic shunts 15, 17 are put on end faces of each section. Shunt 16 is mounted between sections. Screen 6 made of sheet of current conductive material is mounted over secondary winding 4 and jacket 8. Transformer three phases and three-leg magnetic core. Each leg of it carrier coil with primary and secondary windings. EFFECT: increased noise immunity of transformer. 4 cl, 5 dwg