Non-linear direct-current amplifier for measuring purposes

Details Non-linear direct-current amplifier for measuring purposes Non-linear direct-current amplifier for measuring purposes

1977-05-06

1979-04-03

Mullins, James B.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

330110, 364852, G06G 712

Patent

active

041479890

ABSTRACT:
A non-linear direct-current amplifier in particular for linearizing the output characteristic of a measuring transducer, comprising a main amplifier of which the overall gain is determined by means of one or more non-linear operational amplifier elements of which the individual outputs are connected by way of respective summing resistors with the input of the main amplifier, the input of each operational amplifier element being connected with the tapping of a resistive voltage divider connected between the output of the main amplifier and a reference potential source. Depending on the construction and connection of the operational amplifier elements, amplifier characteristics having increasing, decreasing or both types of slopes can be approximated by rectilinear sections.

REFERENCES:
patent: 3209266 (1965-09-01), White
patent: 3371224 (1968-02-01), Polo
patent: 3514635 (1970-05-01), Gilbert
patent: 3525942 (1970-08-01), Boronkay et al.
patent: 3550020 (1970-12-01), Gill et al.
patent: 3739196 (1973-06-01), Tavis
Rodriguez-Izquierdo et al., "High Gain Integrated Amplifiers Stabilize Function Generators", Annales de L'Association Internationale Pour le Calcul Analogique, No. 4, vol. 13, Oct. 1971, pp. 156-159.

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