MODULE OF DIRECT CURRENT TRANSFORMATION IN CODE Russian patent published in 2009 - IPC H03M1/18 

FIELD: physics; measurement.

SUBSTANCE: invention concerns measuring technique and can be applied in various information-measuring systems for transformation of direct current in a code. The module of direct current transformation in a code contains a general power rail (1), a exchange bus (2), a control circuit (CC) (16), two input analogue multiplexers (M) (3 and 4) for p of differential voltage control channels, a source amplifier (5), an entered arrangement for enhancement of absolute signal value (6), and a series-connected scaling amplifier (7), analogue-to-digital converter (8) and an output buffer arrangement (9), and also an entered comparator of polarity (10), a source of exemplary voltage (11), subband comparator (12) and a subband capturing arrangement (13), calibration voltage shaper (15) and a reference voltage commutator (14).

EFFECT: increase of measurement accuracy at the expense of resolution enhancement at transformation of different-polar differential voltages, exception of dynamic errors of measurement at switching subbands problem solving of, and also increase of differential voltage measurement stability at long term of operation.

5 cl, 4 dwg