💡QuinLED💡 24v power transport for 5v addressable LEDs (ws2812b, sk6812) 1 - 3

When doing larger addressable LED installs using 5v LEDs means you need to transport large amounts of current and that becomes a problem because of the low voltage. In this series we're going to look at running a 24v power supply using a QuinLED-Dig-Quad and using buck converters near the LEDs to make it 5v again, would this be a good solution for some scenarios? Let's find out!

Part 1 - 3: Why is using 5v over longer distances an issue? (This video)
Part 2 - 3: Testing buck converters, can they handle the load?
Part 3 - 3: Building the full setup, does it work?

Jump links:
Coming soon!

#QuinLED #WLED #24v

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░▒▓[Music]▓▒░
Intro&Outro
TheFatRat - Xenogenesis

During video
All music by Approaching Nirvana

[chochisnager]

Yo utilizo LM2596S para cada 100pixel, 50% brillo, y en un panel de 270 pixel tengo otro LM2596S, funcionando 3 meses, 6 horas/día, sin ningún problema y con buena intensidad de luz. Cada LM2596S me costó 1.5€, y los protejo con un neumático de bicicleta. Creo que es una solución perfecta, y muy muy económica. Miles de gracias por tus aportes a la comunidad Led.

[blakeaustin]

Loving going from 24v to 5v with daygreen smaller 10amp all aluminum buck converters. Smaller wires and the power supply can be 4x more efficient as far as amperage! I would have needed 80+ amps at 5v.

[deSjeik]

always nice, a summery :) but still join the live ones :) Happy Lockdown!

[matthewchristianmaso]

Please cover how to adjust the signal cable. I just installed this setup this weekend (24V to 5V converter) to 5V 10meter
WS2812B lights. I ran AWG18/3 15ft (3m) at 24V then 2ft at 5V. I have flickering on the entire strip and some effects don't make it halfway down the LED. I have the same wire setup for edge injection on the end but don't use the data cable. I have a Quad v2 to as a controller that uses the 249R resistor.

[HansKlossJ]

I would like to know what 24V PS would you recommend for 7 x 5m, 60LEDs/m, 5v, ws2812b, RGB strips. They will be outdoor working together in two strips on the second floor and 5 strips on the main floor.

[puntoboy_gaming]

when using two PSUs people recommend joining the grounds together (DC Side). How does that apply in this setup as the 5v converter is so far away?

Thank you for the explanation about the resistors on the board. I was having a chat with Filip on Discord about this when I was having an issue last week. Makes total sense now and explains why I was having an issue. I use "Ray-Wu" style connectors and the ground and data is all together so I need to change the resistor in on my Dig-Unos to 33Ω to help with this! too late to order the data booster boards now :(

[anotherledfreak]

I'd be interested to see what would happen to the voltage if you use 0.75mm (18awg) over 10m then power inject from both ends of a 5m strip/string (parallel power over a total of 15m) of cable. Would the volt drop be less because of it being in parallel?

[wgiles]

The application that I have in mind is automotive, a parade float. While it's nominally 12 volts, it's actually 14 to 16 volts, depending on the vehicle. If I use 5 volt LED strings with buck converters spaced periodically and a 12 volt distribution bus, I shouldn't have a problem keeping the 5 volt strings powered.

[starmc]

You're pretty much explaining how the united states Power distribution grid works the way it does, in theory. What would happen if you added large capacitor banks at each end of the 24v distribution wire, with the load drawing off of the load side capacitor Smaller gauge cable wouldn't be an issue, no?

[adamkurzawa]

You lost me when you increased the voltage on your calculator from 5v to 24v, but you left the amperage the same. It is really hard to watch when such basic mistakes are made by someone trying to explain such a simple concept of voltage drop due to CURRENT.