Amplifiers – Modulator-demodulator-type amplifier
Patent
1976-01-29
1977-06-14
Mullins, James B.
Amplifiers
Modulator-demodulator-type amplifier
330 19, 330 22, 330 23, 330 25, 330 28, 330 30D, H03F 342
Patent
active
040300420
ABSTRACT:
A three-terminal current amplifier with current-mode feedback to stabilize its current gain to be substantially independent of the common-emitter forward current gains of its component transistors. The feedback connection is made by means of a current splitter which includes a pair of emitter-connected transistors operated at substantially the same absolute temperature, T. These transistors have a potential substantially linearly proportional to T applied between their base electrodes. The current-amplifier output terminal is coupled to the interconnected emitter electrodes of the transistors and the collector electrode of the first transistor is coupled to the current-amplifier input terminal.
REFERENCES:
patent: 3921091 (1975-11-01), Van Kessel et al.
patent: 3922614 (1975-11-01), Van De Plassche
Christoffersen H.
Cohen S.
Limberg A. L.
Mullins James B.
RCA Corporation
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