QUASI-RESONANT CURRENT HANDLING STATIC CONVERTER Russian patent published in 1997 - IPC

FIELD: converter engineering; high-frequency power supplies. SUBSTANCE: converter has in its circuit two controlled valves interconnected in parallel opposition, shorted out by diodes, and connected to two series-interconnected power supplies, resonance-tuned circuit inserted between points of connection of valves and power supplies, high-frequency transformer whose primary winding is connected to resonance-tuned circuit capacitor terminals. Transformer secondary winding provided with neutral wire lead is connected to load through controlled switches. Connected in parallel with secondary winding is rectifier bridge with adjustable shunt placed across second pair of diagonally opposite terminals. EFFECT: enlarged functional capabilities due to combining functions of DC-to-DC and DC-to-AC converter using push-pull circuit arrangement so as to reduce transformer magnetizing current and converter size. 5 dwg