OFF-LINE INVERTER Russian patent published in 2000 - IPC

FIELD: electrical engineering; variable-load inverters such as those using storage capacitor. SUBSTANCE: inverter has six thyristors, two diodes, two choke coils, capacitor, rectifying element, and storage capacitor; novelty is that third and fourth diodes 12 and 13 as well as filter capacitor 1 are introduced in circuit and that thyristors 6-9 and diodes 10-13 are connected in single-phase bridge inverter circuit with storage capacitor 17 connected across its diagonally opposite terminals through rectifying element 16 while high-inductance choke coil 2 connected to input circuit is magnetically coupled with choke coil 3 shorted out through pair of thyristors 4, 5. EFFECT: enlarged functional capabilities due to optimizing storage capacitor charge. 1 dwg