News:

Server migration complete, Welcome to version 2.1.1

+-+-

+-User

Welcome, Guest.
Please login or register.
 
 
 
Forgot your password?

+-Site Stats

Members
Total Members: 16480
Latest: tcooper
New This Month: 12
New This Week: 1
New Today: 1
Stats
Total Posts: 132744
Total Topics: 16479
Most Online Today: 109
Most Online Ever: 7634
(January 21, 2020, 02:14:03 AM)
Users Online
Members: 1
Guests: 99
Total: 100

Running 12v props with everything else 5v

Started by scotthopkins234, January 21, 2023, 12:21:17 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

scotthopkins234

My current setup is a F16V3 running 5v for everything and pixels setup on ports on both sides of the board. I have a couple 12v floods I'd like to control from the same board. I think I can just run the data and v- from ports on the board to the lights and power the lights from a different 12v power supply combining the ground with the v-. I just want to make sure this is safe and not going to hurt anything?  

tbone321

Yes, you can do that as long as they have a common ground, IOW, the grounds from the two supplies are tied together.

scotthopkins234

Just to make sure I understand.. Is it enough to tie in the 12v power supply's v- with the v- of the light and the v- coming from the board, or is there something in addition to that? Thanks!

algerdes

Scott,
The reason for the tying of the v- to both power supplies and the control board is that v- does double duty in a 3 wire pixel setup. It is the return line for any v+ applications you may have and it is the return line for the data.  Every circuit, whether it is power or it is data, must be complete.
Sequencers: Vixen3 and xLights
Players: FPP and xSchedule Controllers:  Renards - SS24/SS16; E1.31 - San Devices E682 - Falcon F16, F4, F48 - J1Sys - DIYLEDExpress E1.31 Bridges.  Much more!

Poporacer

Quote from: tbone321 on January 21, 2023, 12:31:58 PMIOW, the grounds from the two supplies are tied together.
Tying the grounds together at the power supply might not work correctly, the data line needs the same reference so you should connect the ground from the controller to the floods at the point the 24V power is connected.

Like @algerdes stated, in our hobby we actually have 2 different DC circuits going on and they each have their own requirements.
If to err is human, I am more human than most people.

tbone321

Quote from: Poporacer on January 21, 2023, 02:09:55 PMTying the grounds together at the power supply might not work correctly, the data line needs the same reference so you should connect the ground from the controller to the floods at the point the 24V power is connected.
I agree that the data line needs to be at the same reference to ground and that is pretty much exactly what would happen if you tie the grounds of the two supplies together.  Unless you seeing a measurable resistance between the boards ground lug and the power supplies ground lug, the reference to ground for data will be the same at either point and it's usually easier to make that connection at the power supply lugs if they are close to each other.  Where exactly is 24V being connected?

Support FPP

+- Recent Topics

UDP error by Poporacer
Today at 03:39:36 PM

do I need license for my picap New? by Poporacer
Today at 03:35:02 PM

Audio Issue with Pi Zero 2 W by robbiet
July 14, 2024, 12:07:12 PM

USB (and other) issues on Pi Zero 2w by zaicik
July 14, 2024, 04:20:33 AM

Multiple text effects cause re-render by dkulp
July 13, 2024, 08:44:07 AM

FPP led Panel Troubleshooting. by Poporacer
July 12, 2024, 09:29:56 AM

output controller by JonD
July 12, 2024, 09:29:07 AM

Looking for SRx2 V5... by darylc
July 11, 2024, 05:54:34 PM

FPP 8.0 by colonelcline
July 11, 2024, 04:05:15 PM

SMPTE timecode by k6ccc
July 11, 2024, 10:36:03 AM

Powered by EzPortal
Powered by SMFPacks Menu Editor Mod