The spirit of generosity in this community ( and not just things, but even more importantly, intellectual property) is truly outstanding. It is al the more impressive when you consider what else is going on in the world.
I’ve come to a very similar solution with my car’s power supply to the head unit.
Wish this would have come around 5 years ago, but it’s going to change a lot of crummy power supplies if the difference is the same as what I’ve seen here.
Wish this would have come around 5 years ago, but it’s going to change a lot of crummy power supplies if the difference is the same as what I’ve seen here.
OK all out, the last ones went today. Please post pix and let us know what you are doing with them, I can't wait to see the ideas everyone comes up with.
I put one in line with my pi/Allo streamer and it seems to have cleaned up the power quite well. I will be putting one on a KorgB1 when I get a chance.
I put one in line with my pi/Allo streamer and it seems to have cleaned up the power quite well. I will be putting one on a KorgB1 when I get a chance.
I remember an interview of Captain Chesley Sullenberger, the pilot in command of US Airways flight 1549, who made a successful emergency landing in the Hudson river (NYC) in 2009, with 155 people aboard.
After the (extremely smooth) landing in the water, when the airliner had come to a complete stop, Sullenberger turned to the copilot and said, "That wasn't so bad, was it?"
It's the same with ordering PCBoards from a fab. It seems kind of intimidating beforehand, but when you actually DO it, you find out: it isn't so bad. Ask members konst and Audiobear.
After the (extremely smooth) landing in the water, when the airliner had come to a complete stop, Sullenberger turned to the copilot and said, "That wasn't so bad, was it?"
It's the same with ordering PCBoards from a fab. It seems kind of intimidating beforehand, but when you actually DO it, you find out: it isn't so bad. Ask members konst and Audiobear.
Thank you, sir--very generous! Will post some pics of what I come up with once I get to it. I have been itching to build something...anything!...teleworking is turning my mind to Jell-O
limits
Of course, thanks Mark Johnson for the design!! And Nelson Pass for the KorgB1 design!!
I told you my mind is Jell-O 🙂
limits
😱
I told you my mind is Jell-O 🙂
limits
😱
As long as the Gerbers are kosher, it is really not an issue and supersimple. And you will not believe the price, I cannot understand how they make money, they must ship millions and millions of boards.
This is a docu on JLPCB where these were made, really something Inside a Huge PCB Factory - in China - YouTube (ignore the really annoying presenter)
Ordering the parts at Mouser...
Couldn't find the 0,04R sensing resistor, took 0,02R instead... don't think a majour prob at that scale, but hope OK?
Claude
Couldn't find the 0,04R sensing resistor, took 0,02R instead... don't think a majour prob at that scale, but hope OK?
Claude
I really don't think that's a good idea; your RLC resonant circuit(s) will be poorly damped and they will exhibit decaying sinusoidal oscillation ("ringing") for many types of load current waveforms a/k/a stimuli.
Instead I suggest you pay a dollar more and buy the 1% tolerance version of the 0.04 ohm resistor instead of the temporarily-out-of-stock 5% tolerance version. Mouser has 368 of them in stock, this morning.
part number 605-RMCJ1U00R04FS
Mouser's website says they expect to restock the 5% 0.04 ohm resistor on 13 November.
DigiKey has an acceptable model too: link
_
Instead I suggest you pay a dollar more and buy the 1% tolerance version of the 0.04 ohm resistor instead of the temporarily-out-of-stock 5% tolerance version. Mouser has 368 of them in stock, this morning.
part number 605-RMCJ1U00R04FS
Mouser's website says they expect to restock the 5% 0.04 ohm resistor on 13 November.
DigiKey has an acceptable model too: link
_
OK Mark, will follow your advice
Glad I didn't push the button, thanks for your quick response!
Claude
Claude
Glad I didn't push the button, thanks for your quick response!
Claude
Claude
While we are on the subject of substitutions, can the 470uF be lowered to 330uF or does that alter the filter too much. I only ask as I have heaps of them.
Thanks
Thanks
I have 100 µF and 0.01 Ohm resistors. Can I use those?
Seriously folks, why do you think the designer made a schematic, a PCB and a BOM? The filter works as published with the specs given if the specified parts are used. If "anything goes" would have worked he would have written that.
Seriously folks, why do you think the designer made a schematic, a PCB and a BOM? The filter works as published with the specs given if the specified parts are used. If "anything goes" would have worked he would have written that.
Last edited:
