Differential mode signal and differential mode voltage amplification factor Aud circuit

Published:2011/5/26 1:00:00 Author:Christina | Keyword: Differential, mode signal, mode voltage, amplification factor, Aud | From:SeekIC

Differential mode signal--Add the same amplitude opposite polarity signals on the differential amplification tube T1 and T2's base electrode. As the figure shows: The function of the differential mode signal: because the signals' polarities are opposite, so T1's collector electrode voltage reduces, T2's collector electrode voltage increases, and the variable quantitiy absolute values of T1 and T2 are the same, so Uod=Uc1=Uc2=2Uc1 (or 2Uc2)



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