Alperen Akküncü

Several years ago I wrote an article in Design Ideas called “Double µC’s PWM frequency & resolution” (Reference 1) where I mentioned how one can decrease the output ripple of a PWM-based DAC using two PWM signals having equal duty cycles with...

Most of us know about PWM DACs. They are easy to implement, cheap, and acceptable for low performance applications. The approach is to filter the HF components of the PWM signal and be left with only the LF or DC component that is proportional to duty cycle. However, the...