Differential current amplifier

Details Differential current amplifier Differential current amplifier

1986-02-03

1987-11-24

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330 51, 330 69, H03F 345

Patent

active

047092173

ABSTRACT:
The invention relates to differential current amplifiers. In order to obtain amplification of a difference between two currents I1 and I2 with good common mode rejection, the currents I1 and I2 are caused to pass alternately through two equal resistors R1 and R2 and the differential voltage drop across R1 and across R2 is amplified by a voltage amplifier.

REFERENCES:
patent: 4138649 (1979-02-01), Schaffer
patent: 4392112 (1983-07-01), Schade, Jr.
Journal of Physics E: Scientific Instruments, vol. 17, No. 6, juin 1984, pp. 472-476, The Institute of Physics Dorking GM; D. J. Mapps, et al.: "Magnetostriction Harmonics Measurement using a Double Piezoelectcic Transducer Technique.
Electronics, vol. 41, No. 9, 29 Avril 1968, pp. 58-64, New York, U.S.; R. I. Demrow: "Protecting Data from the Ground Up".

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