Several years ago, I published a design idea (See Figure 1: “Cancel PWM DAC ripple with analog subtraction,” November 28, 2017) showing a simple trick for the cancellation of PWM output ripple. It ...
Instead of the conventional approach of backing up a DAC with an amplifier to boost output, this design idea charts a less traveled by path to power. It integrates an LM317 positive regulator with a ...
In an example DAC application using Actel’s CorePWM IP DirectCore in low-ripple DAC mode (block diagram, Figure 2, main article), PWM output is averaged to a varying dc voltage. At reset, the PWM duty ...
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