Differential amplifier circuit

Details Differential amplifier circuit Differential amplifier circuit

1998-04-24

1999-06-29

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330260, H03F 345

Patent

active

059173777

ABSTRACT:
A differential amplifier circuit which enables oscillation of pre-scaler to prevent at the time no-signal causes sensitivity not to deteriorate to an AC signal itself. The differential amplifier circuit comprises a first pair of differential device consisting of transistors to which AC signal is inputted, load resistances, and a constant-current source, a second pair of differential device which is connected so as to perform positive feedback from terminals in between both ends of load resistances, and a capacitor for performing by-pass of AC signal of the terminals.

REFERENCES:
patent: 3843934 (1974-10-01), Giles
patent: 4904952 (1990-02-01), Tanimoto
patent: 5227681 (1993-07-01), Koyama et al.
patent: 5345346 (1994-09-01), Brannon et al.

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