Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1981-11-12
1984-01-31
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330253, 330254, 330259, 330260, H03F 345
Patent
active
044292830
ABSTRACT:
A differential current amplifier includes a differential input transistor pair having respective first and second unity gain current mirror amplifiers (CMA) connected in their respective output circuits. The output terminal of the CMA connected in the output circuit of the first transistor of the differential pair is connected to the input terminal of the second transistor of the differential pair. The output terminal of the CMA connected in the output circuit of the second transistor is connected to the input terminal of the first transistor. The current feedback to the input terminals of the differential pair conditions them to be responsive to input signal currents. An amplifier output current can be derived from an additional current output from one of the first and second CMA's, the additional CMA output having a gain of A relative to the unity gain output.
REFERENCES:
patent: 3260947 (1966-07-01), Dorsman
patent: 3688209 (1972-08-01), Winkel
patent: 3697882 (1972-10-01), Van Den Plassche
patent: 3717821 (1973-02-01), Amemiya et al.
patent: 4055812 (1977-10-01), Rosenthal
J. I. Smith, Modern Operational Circuit Design, Wiley-Interscience, N. Y. (1971) pp. 127-129.
J. G. Graeme et al., Operational Amplifiers, Design and Applications, 1971, McGraw-Hill, pp. 232-233.
Herrmann E. P.
Mullins James B.
RCA Corporation
Tripoli J. S.
Whitacre E. M.
LandOfFree
Differential current amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Differential current amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential current amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2348059