Direct-coupled grounded-base amplifier, semiconductor device and

Details Direct-coupled grounded-base amplifier, semiconductor device and Direct-coupled grounded-base amplifier, semiconductor device and

1990-11-16

1992-06-30

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

330310, 330311, 360 67, H03F 3343, H04N 924

Patent

active

051266890

ABSTRACT:
A direct-coupled grounded-base amplifier comprising two or more grounded-base amplifying circuits. The same circuit used as the output stage of a first grounded-base amplifying circuit is mounted in each of second and subsequent grounded-base amplifying circuits. The base potentials of output stges of the second and subsequent grounded-base amplifying circuits are applied by the same circuit, thereby equalizing the DC potentials at both ends of an input resistor of the second and subsequent grounded-base amplifying circuits. Therefore, a capacitor outside of the IC is unnecessary.

REFERENCES:
patent: 4716305 (1987-12-01), Sakuragi et al.
patent: 4758820 (1988-07-01), Tateno

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