BROAD-BAND AMPLIFIER WITH COMPENSATION CIRCUIT OF INPUT CURRENTS Russian patent published in 2010 - IPC H03F3/343 H03F1/56 

FIELD: radio engineering.

SUBSTANCE: broad-band amplifier includes first (1) access transistor the emitter of which is connected to first (2) power supply bus through first (3) current-stabilising bipole, first (4) auxiliary transistor the emitter of which is connected to collector of first (1) access transistor, and base is connected to input (5) of current mirror (6), at that, output (7) of current mirror (6) is connected to base of first (1) access transistor and input (8) of device, load circuit (9) connected between output (10) of device and second (11) power supply bus. To the scheme there introduced is second (12) access transistor the base of which is connected to input (8) of device, emitter through second (13) current-stabilising bipole is connected to first (2) power supply bus, and collector is connected to output (10) of device.

EFFECT: reducing supply voltage at specified level of amplitudes of positive and negative output voltage.

3 cl, 3 dwg