Digital Realization of a Click Modulator for an Audio Power Amplifier
نویسنده
چکیده
This paper describes a digital realization of a click modulator for a class-D digital audio power amplifier. The click modulator is an interesting alternative to a classical pulse width modulator. The modulator was realized using a floating point digital signal processor ADSP21065L and FPGA circuit Spartan 3 XC3100E. Some simulation and laboratory test results are presented in this paper. Streszczenie. W artykule przedstawiono cyfrowy modulator typu click modulation dla wzmacniacza mocy audio klasy D. Modulator typu click modulation stanowi ciekawą alternatywę dla klasycznych modulatorów szerokości impulsów (PWM). Modulator został zrealizowany za pomocą zmiennoprzecinkowego procesora sygnałowego ADSP21065L i układu FPGA typu Spartan 3 XC3100E. W artykule przedstawiono wyniki badań symulacyjnych i laboratoryjnych.
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