ALTERNATING CURRENT AMPLIFIER WITH PARAPHASE OUTPUT Russian patent published in 2011 - IPC H03F3/45 

FIELD: radio engineering.

SUBSTANCE: alternating current amplifier with paraphrase output includes first (1) and second (2) input transistors with jointed emitters, first (3) and second (4) load circuit bi-pole devices engaged between first (5) power source bus and corresponding collectors of first (1) and second (2) input transistors, signal source (6), connected by alternating current with the base of first (1) input transistor, second (7) power source bus. The scheme includes first (8) and second (9) additional transistors, emitters of which are engaged with emitters of first (1) and second (2) input transistors and connected to second (7) power source bus, the base of first (8) additional transistor is connected to the base of first (1) input transistor, the base of second (9) additional transistor is connected to the base of second (2) input transistor, collectors of first (8) and second (9) additional transistors are jointed and through additional bi-pole device (10) are connected to first (5) power source bus. Note that jointed collectors of first (8) and second (9) additional transistors are connected by corresponding bases of first (1) and second (2) input transistors through corresponding first (11) and second (12) additional non-inverting amplifiers.

EFFECT: increase of supply voltage usage effectiveness.

4 cl, 6 dwg