Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1979-03-07
1981-01-27
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
307299A, H03F 345
Patent
active
042478251
ABSTRACT:
A transistor amplifier comprising two transistor pairs, connected in parallel at their bases and collectors and with interconnected emitter electrodes of one transistor pair receiving an essentially constant direct current and the interconnected emitter electrodes of the other transistor pair an essentially constant direct voltage. The amplifier extends the upper range of input voltages at which the difference of the collector currents of these transistor pairs varies as a linear function of the voltage between the bases. As a result, larger input voltages can now be amplified with low distortion.
REFERENCES:
patent: 3560866 (1971-02-01), Haines
Briody Thomas A.
Franzblau Bernard
Mullins James B.
Streeter William J.
U.S. Philips Corporation
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