Watched this beginning to end and it was great! Thank you Bill, the most concise and easy to follow presentation for non-electrical engineers I've seen!
Great video - about 450 12v pixels running left to right on my house, and now looking at power injection. I have a bunch of 18/3 left which I used to splice strings together. Can I use this for power injection? If not, can speaker wire be used such as CCA? 16? 14?
Electricity almost never been cheap here in Scandinavia.. I look at it this way... A quality power supply with as example PFC will help keep the electricity bill down and I'm not ending up with a cheap power supply that doesn't work after all.....
This didn't age well. It appears that regulated suck (use more power, need more power injection, stops working at a higher voltage) compared to resistor pixels.
I have a 1290 LED pixels and when I followed your formula on power injecting I end up with 6 points to power inject. My question is this, how many injection points can I have in a single run based on this model using 14 AWG low voltage wire? Thank you for you great presentation.
My comment comes from someone who is starting to learn power injection and this presentation was awesome. I’ve watched so many PI videos you wouldn’t believe it. What has not been answered or at least maybe I’m not seeing is this. The two wires for PI, where do they go? Do they get power from your controller, in my case a Dig-Quad, or do they go on the MeanWell? Sorry for misunderstanding, I’m asking so I don’t cause harm to my equipment. Thanks!
The MeanWell(as long as it's the same one as powering your controller). To make things easier, there are a number of boards made to connect to your MeanWell that split it out to separate PI runs with their own fuses. This makes it way easier to organize your power injection wires at the power supply. If you use the same power supply as your controller, just don't exceed 80% of the total watts your power supply allows(and make sure you use fuses!). You can also use a separate power supply. If you do, make sure you do not connect V+ between two separate power supplies. So lets say you have a string of 200 lights, with a single power supply. You have your 3 wires coming from your controller to the start of your string. Then you run a second set of wires from the power supply to the middle of the string, and maybe even to the end. These are all coming from the same power supply, so as long as you are adding fuses to protect your wire gauges, there isn't a whole lot to worry about. However, if you decide for your 200 lights that you want to use a separate power supply for the second set of 100 lights. You would connect your first 100 lights directly to the controller(same as above), from the end of that string you'd just run the ground and data lines to the second set. You'd then connect the v+ from your second supply to the start of your second string, and you'd connect the ground from your second power supply to the ground of your new string(which should still be connected to the end of your first string). Again, you will never want to connect the + wire of two power supplies together, but you WILL want to ground them to one another.
For power injection, do you need to run both a positive and negative wire from the power supply to the injection point? Or can you just run a positive line? If you have a negative running through the controller and through all the lights inline in that way wouldn't a negative line for each power injection be redundant and unnecessary?
You are double fusing all your props with the power injection wires. In one of your examples you are sending 15amps to the pixels with a 10A fuse from the power injection and a 5A fuse from the input line.
Don't use those heat shrink solder splices as a solution. You are better off soldering the connection yourself and using a heat shrink with a glue that activates when you heat it. ruclips.net/video/unxEdyW8RP8/видео.html
Watched this beginning to end and it was great! Thank you Bill, the most concise and easy to follow presentation for non-electrical engineers I've seen!
Great presentation, thanks!
This fantastic!
I love the Keith in the background!
Should be a Boscoyo Prop! 😉
Thank you.
Awesome video. Where can I get the MUYI Connectors mentioned?
Great video - about 450 12v pixels running left to right on my house, and now looking at power injection. I have a bunch of 18/3 left which I used to splice strings together. Can I use this for power injection? If not, can speaker wire be used such as CCA? 16? 14?
Electricity almost never been cheap here in Scandinavia.. I look at it this way... A quality power supply with as example PFC will help keep the electricity bill down and I'm not ending up with a cheap power supply that doesn't work after all.....
This didn't age well. It appears that regulated suck (use more power, need more power injection, stops working at a higher voltage) compared to resistor pixels.
I have a 1290 LED pixels and when I followed your formula on power injecting I end up with 6 points to power inject. My question is this, how many injection points can I have in a single run based on this model using 14 AWG low voltage wire? Thank you for you great presentation.
My comment comes from someone who is starting to learn power injection and this presentation was awesome. I’ve watched so many PI videos you wouldn’t believe it. What has not been answered or at least maybe I’m not seeing is this. The two wires for PI, where do they go? Do they get power from your controller, in my case a Dig-Quad, or do they go on the MeanWell? Sorry for misunderstanding, I’m asking so I don’t cause harm to my equipment. Thanks!
The MeanWell(as long as it's the same one as powering your controller). To make things easier, there are a number of boards made to connect to your MeanWell that split it out to separate PI runs with their own fuses. This makes it way easier to organize your power injection wires at the power supply.
If you use the same power supply as your controller, just don't exceed 80% of the total watts your power supply allows(and make sure you use fuses!). You can also use a separate power supply. If you do, make sure you do not connect V+ between two separate power supplies.
So lets say you have a string of 200 lights, with a single power supply. You have your 3 wires coming from your controller to the start of your string. Then you run a second set of wires from the power supply to the middle of the string, and maybe even to the end. These are all coming from the same power supply, so as long as you are adding fuses to protect your wire gauges, there isn't a whole lot to worry about.
However, if you decide for your 200 lights that you want to use a separate power supply for the second set of 100 lights. You would connect your first 100 lights directly to the controller(same as above), from the end of that string you'd just run the ground and data lines to the second set. You'd then connect the v+ from your second supply to the start of your second string, and you'd connect the ground from your second power supply to the ground of your new string(which should still be connected to the end of your first string). Again, you will never want to connect the + wire of two power supplies together, but you WILL want to ground them to one another.
For power injection, do you need to run both a positive and negative wire from the power supply to the injection point? Or can you just run a positive line? If you have a negative running through the controller and through all the lights inline in that way wouldn't a negative line for each power injection be redundant and unnecessary?
Is this 21:11?
Maybe I failed the test but at 39:52 wouldn't 324 pixels at 12v 30% be 324*.055*.3 = 5.346 amps and then 12v*5.346= 64.152 watts not the stated 92W?
You are double fusing all your props with the power injection wires. In one of your examples you are sending 15amps to the pixels with a 10A fuse from the power injection and a 5A fuse from the input line.
So what if you have Strips instead of Pixels?
Don't use those heat shrink solder splices as a solution. You are better off soldering the connection yourself and using a heat shrink with a glue that activates when you heat it. ruclips.net/video/unxEdyW8RP8/видео.html