Arrangement and method for coverting an analog voltage signal to

Details Arrangement and method for coverting an analog voltage signal to Arrangement and method for coverting an analog voltage signal to

1990-02-16

1991-10-22

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341166, H03M 150

Patent

active

050599810

ABSTRACT:
An arrangement for integrating an analog voltage signal and for converting it into a corresponding digital signal, whereby during a measuring cycle, the analog signal is fed via a comparator to a counting circuit, which to provide the time-related control of the operation of the counter is connected to a variable clock frequency generator device controlled by the analog signal. The comparator is connected to a "D"-flipflop, which is connected to an up-down counter with a digital-to-analog converter, on whose counting input is provided the Q-output of the variable clock frequency generator, which changes its clock frequency according to the absolute value of the voltage to be integrated.

REFERENCES:
patent: 3895377 (1975-07-01), Schwalenstocker
patent: 4471285 (1984-09-01), Kawada et al.
patent: 4733043 (1988-03-01), Bell
"Elektronik-Applikation [Electronic Application]", No. 20, Oct. 11, 1988, p. 39.
Fletcher, W. I., An Engineering Approach to Digital Design, 1980 Prentice-Hall, Inc., p. 322.

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