When I designed the PS for my last (big) console I used double regulation, so 3-terminal regulators on each strip and a several amp master power supply that was a glorified ripple filter using a simple pass element to put out roughly +/-19V, but that voltage was a fraction of the unregulated voltage to scrap off ripple.mediatechnology wrote: ↑Wed Apr 25, 2018 11:43 amwereoflu used the TPA7AXX-series in his minimixer which is where I found it: viewtopic.php?f=6&t=882#p10291
There's another ripple eater I recall from a Design Idea.
I'll dig, scan and post.
My goal is to have something that plugs in and works without any additional filtering.
Most of the Meanwell and TDK models I tested are great.
The simple RC required for the 24V and 48V supplies aren't a deal-breaker.
In the case of the 24V for powering relays external filtering may not be needed at all.
I haven't tried the 24V yet.
If the mains sagged, this pre-regulator would sag too, to stay comfortably below the ripple.