Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [led-strip]

LED Strips come in two designs, both on Flex Printed Circuits (FPC). 1. Simple LED + Resistor versions, typically with multiple parallel segments of three LEDs with matching resistors. 2. Digitally controllable with embedded controllers. Data is wired in series while power is paralleled by segments or pixels. Both have different and similar application challenges.

LED Strips come in two designs, both on Flex Printed Circuits (FPC). 1. Simple LED + Resistor versions, typically with multiple parallel segments of three LEDs with matching resistors. 2. Digitally controllable with embedded controllers. Data is wired in series while power is paralleled by segments or pixels. Both have different and similar application challenges.

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Circuit diagrams for LED Chaser Christmas Lights

I'm looking for circuit diagramS for ~50 LED strip with lights running* repeatedly from the bottom to the top of the Christmas tree. I found simple solutions with only 13-15 LEDs, but this is, obviously, not enough for a big Christmas tree. The…
Physicsworks
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LED light strip start up delay

I recently installed an LED strip light to replace a fluorescent lamp in my garage. It works great and I highly recommend them, however, I am curious why there is such a noticeable delay between turning on the AC wall switch and the thing lighting.…
Trevor_G
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What does "G D C +" or "G C D +" stand for on LED strip controllers?

I'm not very well-versed in electrical engineering, so I'd be glad to get some beginner-friendly answers. I have a device similar to this (source), used for controlling LED strips (through PWM I think): The one in the picture has "G D C +" printed…
Cedric Reichenbach
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What limits the number of addressable LED strips that can be controlled?

As the title suggest, what limits the number of "pixels" I can control in an individually addressable LED strip such as SK6812. Most controllers on the market I see are only up to 2048 pixels. If I were to make my own controller I can simply…
DrakeJest
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Building power/control interface for RGB LED strips

I am attempting to build/create/design/whatever a way to control my RGB LED strips via a USB or ethernet interface. These strips consume a lot of power and the mass produced controllers suck. I would also like independently controllable "zones" if…
David
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Modify LED strip from 4 AAA battery power to 12V DC

I wanted to put some light to my 3D printer. The power supply outputs 12V DC and I have this old car workshop LED torch that had it's batteries leaked. I disassembled it and cleaned the salt from the leak. I'd now want to remove the battery…
user6329530
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What gauge wire for 24V, 72W, 8m extension RGBW?

I have a simple question (I think) but I haven't been able to find the answer. I have 4 * 5m lengths of RGBW LED lighting, which is rated at 24V, 14.4W/m. This is the maximum power draw, assuming the Red, Green, Blue and White LEDs are powered. I…
Chris Koncewicz
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Can I connect up LED strip lighting at alternate ends?

I want to add some simple LED tape/strip lighting to my van. The 12V supply is close to one end of where I want the strip to start, and I have an earth block to chassis close to the other end. I know this sort of lighting normally has 12V and 0V…
Dan_7378439012
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Connecting 12 V led strips to 48 V PSU in series

I have 4 led strips of 12 V, I want to connect them to a 48 V PSU, is the schematic bellow correct? Can I connect them in series? Or do I have to connect them using a step down buck to 12 V? Thanks.
superbem
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How to light the air-water flow inside a transparent pipe from outside of the pipe?

I have 17 meter acrylic pipe with 80 mm diameter. There is an upward air-water flow inside the pipe. I need to somehow be able to light inside the pipe so I can show the flow regime inside the pipe better. I can only think about putting a line of…
Pouria Amani
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Logic OR of three wires, detect ground

I bought a RGB LED strip (analog) and it has one 12 volt and three ground pins that is pwm controlled (I assume) to dim them. I also want to add a 12 volt white strip that turns off when the RBG turns off. Sadly turning the controller off does not…
Andreas
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LED strip power supply 12V 2A vs. 12V 25A

I am using a white light LED strip in my 3D printer enclosure. And I would like to use the power supply of my 3D printer to power this LED strip. The original power supply of the LED strip is 12V/2A The power supply of the printer outputs…
Tommy
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How to find a particular LED strip?

This feels like a silly question, but I don't know the answer. How do I find an appropriate LED strip? I am looking for a flexible strip of LEDs that can be driven with apprx 65 VDC at 350mA and is 550-600mm long and no more than about 9.5mm…
Chris K8NVH
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Display Amber/Orange on LED Strip with no control module?

I have a set of LED strips that have the following four wires: Positive Negative Red Channel Blue Channel Green Chanel Given these wires, I can produce the following colors without additional components: Red Blue Green Purple (Combine red and…
Hazel へいぜる
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Combine Power Suplies?

I'm not sure if this is the right place to ask, but I'm building something and am not sure about how to power it (I have zero electricity knowledge). I'm building out three individually Gledopto controlled RGB+CCT LED strips for some shelf accent…
Picard102
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