TWO-STEP INVERTER Russian patent published in 1994 - IPC

FIELD: secondary power systems; automatics. SUBSTANCE: two-step inverter is made with medium point in input transformer 4 and has basic and additional transistors 1, 2 and 6, 7 correspondingly. Additional transistors 6, 7 are connected in the circuit of emitter follower. Bases of additional transistors are connected to paraphase outputs of voltage unipolar control pulse source 13 through resistors 9, 10. To eliminate parasitic repeat unblanking of rendered transistors 1, 2 and through currents, resistors 9, 10 are shunted by capacitors 11, 12. EFFECT: excluded parasitic unblanking. 2 dwg