Gain stabilizing amplifier

Details Gain stabilizing amplifier Gain stabilizing amplifier

1990-06-11

1992-02-11

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

330308, 250214A, H03F 308

Patent

active

050878921

ABSTRACT:
A gain stabilizing amplifier comprises an amplifying transistor for amplifying an input signal; a node for determining a current flowing into the amplifying transistor; a variable current supply connected to the node, a current output from the variable current supply being set to offset variations in a bias current of the amplifying transistor.

REFERENCES:
patent: 3872392 (1975-03-01), Sakamoto et al.
patent: 4122403 (1978-10-01), Cave
Shunichi Nezu, "Bias Circuit", Patent Abstract of Japan, Jul. 13, 1977, vol. 1, No. 72 (E-77)(696).
Kouichi Itou, "Amplifier Circuit", Patent Abstract of Japan, Jul. 22, 1978, vol. 2, No. 90(E-78)(4133).
Davidson et al., "Bias Stabilization for Amplifier", IBM Technical Disclosure Bulletin, vol. 14, No. 2, Jul. 1971, p. 454.

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