Amplifiers – With semiconductor amplifying device – Including particular biasing arrangement
Patent
1980-09-17
1982-10-26
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including particular biasing arrangement
330288, H03F 304
Patent
active
043564550
ABSTRACT:
An amplifier circuit in which the non-linear distortion of the amplifier transistors caused by non-linear base-emitter input and output characteristics is eliminated without the use of negative feedback. A first transistor and a second transistor of opposite conductivity type are coupled with the output of the first transistor connected to the base of the second transistor and with an input signal applied to the base of the first transistor. Currents are applied to the first and second transistors, such as with the current mirror circuit, in such a manner that the ratio of the currents is a predetermined constant value. Bias voltages are applied to the circuit such that the ratio of the collector-emitter voltage of the first transistor to the collector-emitter voltage of the second transistor is the reciprocal of the predetermined constant value.
REFERENCES:
patent: 3450998 (1969-06-01), Greefkes et al.
Ishii Satoshi
Ishikawa Kikuo
Ozawa Akio
Saito Keishi
Sueyoshi Susumu
Mullins James B.
Pioneer Electronic Corporation
Wan Gene
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