DEVICE TO CHARGE RESERVOIR CAPACITOR Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: device to charge reservoir capacitor has N inverters 1.1-1.N, N transformers 2.1-2.N each having two primary and secondary windings 3.1-3.N, 4.1-4.N, 5.1-5.N, 6.1-6.N, N rectifiers 7.1-7.N. Parameters of inverters are chosen from relations f₁= f₂ and Q₁> Q₂, where f₁ is frequency of switching over of odd inverters, f₂ is frequency of switching over of even inverters, Q₁ is relative pulse duration of odd inverters, Q₂ is relative pulse duration of even inverters. EFFECT: increased operational efficiency. 3 dwg