Maxim-integrated MAX11300PMB1 Peripheral Module and Munich (USB2PMB Manual de usuario descargar pdf (Pagina 30)

MAX11300PMB1 Peripheral Module and Munich (USB2PMB1) Adapter Board Quick Start Guide

6.3. Generate PWM with Potentiometer-Adjustable Pulse-Width

In this example, a sawtooth waveform is generated and fed to a comparator (i.e., a level

translator). The output of the comparator is high if the signal is above the threshold or

low if the signal is below the threshold (same case for a level translator). As the position

of the sawtooth waveform is moved up or down when the potentiometer is adjusted, the

width of the curve above the threshold is wider or thinner. See Figure 32 and Figure 33.

Figure 32. A Sawtooth Waveform Shown Is Generated and Applied to a Level

Translator, Resulting in a PWM as Depicted in Figure 33

Threshold

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Maxim-integrated MAX11300PMB1 Peripheral Module and Munich (USB2PMB Manual de usuario Pagina 30