Arrangement for the summation of products of signals

Arrangement for the summation of products of signals

In a circuit at least one of the signals (u[t] or i[t]) is transmitted to a signal input of a sigma-delta modulator operated at a first clock frequency (1/TS) the output of which is connected to at least one of two signal inputs of a multiplication/addition element (3). The arrangement is used for e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CERMENO, RAUL, GRUBER, PETER, LIENHARD, HEINZ
Format: Patent
Sprache:eng
Schlagworte:
ANALOGUE COMPUTERS
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HYBRID COMPUTING ARRANGEMENTS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:In a circuit at least one of the signals (u[t] or i[t]) is transmitted to a signal input of a sigma-delta modulator operated at a first clock frequency (1/TS) the output of which is connected to at least one of two signal inputs of a multiplication/addition element (3). The arrangement is used for example in electricity counters and makes it possible to calculate sums of products by means of simple shift and algebraic adding operations while maintaining closely the precision achievable with a classic multiplication. The arrangement is especially advantageous if the multiplications are done on a semiconductor chip.