DIGITAL TEST SIGNAL GENERATOR IMPLEMENTED WITH FPGA

Liviu Breniuc, Alexandru Salceanu, Constantin Sarmasanu

Abstract

In this paper we present a digital generator which produces sine-wave signals with variable frequency. The shape of the signal is stored in memory. The modification of the frequency is achieved by changing the number of samples used to generate a period. The digital circuitry of the generator is implemented using a field programmable gate array (FPGA) and a microcontroller. Experimentally we have generated sine-wave signals with frequencies between 1÷100 kHz and analysed their content in harmonics. Finally we present some possibilities for optimising the generator.

Keywords

digital generator, fractional addressing, FPGA

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IMEKO-TC4-2001-015.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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