Fast software PWM channel

Jerzy Kotliński

Abstract


Due to great value of the time constant of the integrator circuit, a hardware defined PWM (Pulse Width Modulation) signal makes it possible to build a Digital to Analog Converter (DAC) characterized by a relatively long response time. An attempt at creating the software defined PWM signal leads to increased response time of the DAC converter with a coefficient several hundred times longer than its hardware equivalent. Reorganization of the PWM signal allows for its software synthesis, in that the response time of the DAC converter is only several times larger than its classical equivalent.

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DOI: http://dx.doi.org/10.17951/ai.2003.1.1.1-8
Date of publication: 2015-01-04 00:00:00
Date of submission: 2016-04-27 10:10:14


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