Power Injection Flaws Exposed

Trevi Lights - Quick video to talk about the power injection flaw and possible solutions

Diode Information:

Multimeter

Falcon Controller

WS2811 Pixels

12v Power Supply 360w

Tags
Mega Tree,christmas tree,led tree,L.E.D.,Led tree,ws2811,christmas lights,raspberrypi,singing tree,falcon tree,falcon controller,trevi,lights,raspberry,boscoyo,Trasn,Trans-Siberian Orchestra,TSO,Christmas Eve,Behind the scenes,Trevi,trevi lights,pixel

[mrphyslaw]

The downside of the approach that you mention using a diode is that there is a voltage drop across it. The voltage drop varies based on the particular diode, and could cause issues depending on the diode and what voltage pixels you are running. VCS has a power injection webinar from this past year. The recommendation is to cut power wires between different power supplies to eliminate backfeeding and possible overload of power supplies if one power source fails.

I love your videos and the work you are doing looking at the basics. Keep up the good work!

[inezornelas]

Wow, never thought about the back feed. Very interesting. Explained very well. Always enjoy your videos. Keep them coming.

[TBblake]

So simple!!! Now the mystery is gone. 😮

[wallyhirsh]

AS always, really enjoy and use what you produce in your videos to help me in my light show. Will watch with anticipation on your next videos this year

[diyhometheaterguy]

I had a problem with my falcon and the power feedback. Was causing it to act strange and burning out pixels. They had me cut the wire. I wish I thought about the diod! Such a better idea!

[stephanlemaire]

Could we inject current from the first power supply if it has enough amp (where is the controler) at every 150 pixels +/- or we must use another power supply imperatively for the power injection ? If yes, no diode is required? If no, I have to buy more 12v power supplies.

[johnjahner]

Hi Trevi, do you have or will you be doing a video on Boscoyo 8 foot Chromatree?

[marito]

Thanks for the video. I have a very small set up with 2 roof lines(one is 68 pixels and one 52pixel), this year I change controller form SanDevices e6804 4 port which stopped working out of not where last year and now I purchased a Flacon 16v4, planning to add couple arches this year, and 1 more roof line. Controller is located in my garage and from there to the beginning of the first pixel of 2 current roof lines is between 12" and 16". I was wondering what is the maximum distance I can run cable before from the controller port to the first pixel before starting degrading current power, and what cable would you recommend.
Thank you again in advance.
Pixels are C9 Pixel for the roof lines, for the archs probably I will use nods 12v.
By the way from all tutorials I watched yours are the best.

[marlonleiva]

How are u getting the power on all three power supply, only one cable plug for all three of them can u explain

[Chucka]

This is cool information. But in my show I do all of the power injection from the same power supply that powers the controller (or receiver). Often I inject by splitting out power at the first pixel and injecting it into the last pixel. This works especially well when the first and last pixel are near one another like on a snowflake, etc.

[marlonleiva]

Buenas Como conecto Las tres cajas de power supply, nomas con un cable de coriente.

[richardcdldriver]

Great job our pixels data is a giant diode
Thank you for some very informative questions 👏

[LizzieLachkeks]

Thanks for your very informative videos, we're loving them..
We are wondering why you are just cutting the positive side, but not the negative? All electricians I know, told us to cut both. Please Help!
Regards from Germany 🇩🇪

[hmn]

HI Trevi I enjoy watch your video, can you help me setup the F16V4 I can't get the output port on the F16V4 it only show port #1 but doesn't show all the other ports. How can I add port #2 to #16 pixel ports? F16V3 shows all 16 ports pixel output. Can you help me?
Thank you

[johnnagy]

Ok. Confused here. I've read thar power supplies should not be used in a series circuit. Please help me understand this confusion. Thanks again for all your videos and help

[edb]

Thanks for the video. Great job explaining the options and how to set it up.

[mlgs]

hmm it is a good idea but it needs some adjustment in the case you are using 5V pixels (that diode is around 20% voltage lost) moving around the power injection closer to the controller should fix it unless i am missing something

[hmn]

Thank you, for your reply back I will try and see it work. Anyway I enjoy your video is so clear to understand Keep them coming.

[denn]

hi trevi could i use the same ones on my 5v pixels

[sammytigueron]

Thanks for your video and support, I have a question, ,, where I can get the Falcon Controller? I need to get it. Need a good website so I can get it. Thanks again