Bipolar signal to current converter

Details Bipolar signal to current converter Bipolar signal to current converter

1978-08-23

1980-01-22

Mullins, James B.

Amplifiers

Signal feedback

Amplifier in signal feedback path

330 98, 330105, 330293, H03F 134

Patent

active

041852494

ABSTRACT:
Signal currents corresponding to a voltage to be converted into current or to a current to be amplified are applied to one input of an operational amplifier and its other input is referenced to ground. Its output is connected via a power amplifier and a small resistance to an output terminal and means are provided for supplying current proportional to the voltage across the resistance to the signal input of the operational amplifier with such polarity as to tend to cancel the signal current present thereat.

REFERENCES:
patent: 2886659 (1959-05-01), Schroeder
patent: 3525812 (1970-08-01), Verdier
patent: 3970953 (1976-07-01), Walker et al.
patent: 4001703 (1977-01-01), Saul et al.
Black, "Quad 405", Funkschau, vol. 48, no. 16, pp. 669-672, Jul. 1976.
Dandl et al., "Isolating dc-dc Coupler", Rev. Sci. Instrum, vol. 46, no. 6, Jun. 1975, pp. 784, 785.
Park, "Novel Active Hybrid Circuit and its Applications", Electronics Letters, vol. 11, no. 16, pp. 362-363, Aug. 7, 1975.

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