The circuit works due to the fact that voltage increases or decreases linearly when a constant current flows into or out of a capacitor. If we manage to charge and discharge the capacitor with the ...

If we had a dime for every 555-based noisemaker circuit we see… But this one’s got a twist. [Tristan] does two things that elevate his sawtooth-wave noisemaker above the norm. First, he gets a clean ...

In previous posts, I have introduced several do-it-yourself pwm controller circuits and reviewed several Chinese PWM controller modules. The next step in this post is to share the design of another ...