Hey Electrical Engineers. I have noticed that the power coming off my bench power supply is really dirty. Where can I go to learn how to design a circuit to filter it and help clean it up?
@opsnlops And this pops up just as I'm going to bed. Lmao. Figures.
If this is still unsolved on Wednesday, please give me a shout.
(My first thought is a "bench power supply" ought to produce very clean power. If it doesn't, the power supply is faulty. But we have to determine what you mean by bench power supply. ;-)
Good night. :-)
@opsnlops 60 Hz ripple? Is it a regulated supply? Adjustable? Is it possible you're drawing current pulses outside of it's range?
@opsnlops So where did we end up on this? Did you track down the problem?
@shuttersparks I think so. I also have some ceramic caps coming in tomorrow so I can start learning about bypass caps!
@opsnlops Yup. .01 uF ceramics everywhere. Lol. Very important. With digital stuff, power supply rails with "blidgets and prangs" on them (as I call them) will ruin your day. Back in the early days of DRAM, this was the number one problem to look out for.
@shuttersparks Also tonight I'm in happy fun software land, so I'm in my comfort zone 😅
@shuttersparks It's a cheap one I got off Amazon. :)
I'm seeing ripples of around 800-1000mv when it's hooked up to the stepper drivers.