The 50/50 come with built in power connectors. The 50/50 rgb has more versatility then that brand in you picture which looks like a 30/30. An adjustable power supply to lets you choose your voltage and amperage and they are cheap. With one power supply and wires to divide it evenly if it goes out, the whole thing goes out without the risk of a short in the microchips in the strip. Having multiple power supplies is not ideal because if one goes out it puts stress on the LED strip and could short out the strip and other power supplies. If you go on ebay they sell 1 male to multiple female connectors. Again it would be better to have a single power supply that can handle the total load, rather than trying to parallel several smaller supplies. If the regulators were 85% efficient then you would need at least 11.25 / 0.85 = 13A at 12V. However 5V * 27A = 135W, so two 12V 2A power supplies (48W) will not be enough. Several strips could share the same power wires because the regulators will compensate for voltage drop along the line. Using higher voltage and dropping it down at each strip with switching regulators would allow you to use thinner wires. The downside of this option is that you need a lot of relatively thick wires. Strips which are further from the supply should have thicker wires to minimize voltage drop. It would be better to use a single power supply rated for at least 27A. Your second idea is not good because the power supplies won't share the load equally (some will put out slightly more voltage than others, causing them to deliver more current). It will work, but the mains wiring required is bulky and awkward. The positive wires of each (30 LED) strip should be isolated from each other so that each supply is only powering one strip. If you use 5V 2A power supplies then you will need 15 of them. The question is really if chaining the supplies as my first image is possible and what might could go wrong, if I do it that way. The question here is not powering the strips. Can I buy some cheap, alternative hardware, such as voltage regulators, and wire it up in an alternative way? Can I do something like this instead, if I make sure to use good gauge wires, so they don't lose voltage?:Īs a third option, I have a couple of 12v 2A supplies (like the ones above). Here's another thing I had in mind, which would help a lot, since I don't have wall outlets every x meters in my house. If I for every 3 or 4 meters wire up a wall charger to the strip, can I achieve what I want? This is what I had in mind: I'm now trying a different approach, which should work much better. I know that wasn't suitable at all, but I was simply trying it out. Every color looked great, but white had a yellow look to them. I wrapped the 6 meters around a tube, so I could easily solder some wires from the top to the bottom, so the voltage drop was lower. I've experienced that I can (but should not) power about 6 meters (180 LEDs) with a single 2.1A supply, which actually ended up drawing 2.3A (Samsung phone charger). I've read multiple places they're about 60 mAh each, so 60 * 450 = 27A required to run all of these, assuming I want full brightness at red or white (not sure which draws most). With about 30 LEDs per meter, I need to power about 450 of these total. I will be using an ESP8266 and about 15 meters of WS2812b LEDs. I want to chain up a very long LED strip to a single source of data.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |