| 摘要 |
FIELD: radio engineering. ^ SUBSTANCE: cascode amplifier contains input transistor (1) the base of which is connected to static mode setting circuit (2) and is connected through separating capacitor (3) to signal source (4); emitter as to alternating current is connected to the first (5) bus of power supplies, and collector is connected to emitter of output transistor (6), potential offset circuit (7) connected to base of output transistor (6), bipole of collector load (8), the first output of which is connected to collector of output transistor (6) and to output of device, and the second bus of power supplies. The second output of bipole of collector load (8) is connected to the second (9) bus of power supply through additional current-stabilising bipole (10) and through auxiliary bipole (11) to emitter of output transistor (6). ^ EFFECT: increasing amplification coefficient as to voltage, excluding additional amplification cascades and reducing common power consumption in comparision to multi-cascade amplifiers. ^ 2 cl, 10 dwg |
