High gain amplifier with limited output dynamic

摘要

Control of the transistors provides high gain with independent control. The circuit comprises two transistors mounted as a differential pair. The circuit includes a current directing and division system using resistive branches, in a situation of imbalance of the differential pair of transistors (Q1, Q2). The conduction or current flowing through each resistive branch is directed towards that of the two transistors which is conducting. The gain and the maximum value of the amplitude of the output voltage of an amplifier constructed in this way can be controlled independently of each other.