Manufacturing of LED RGB controllers

Manufacturing of LED RGB controllers How to make an RGB controller yourself at home

Dedicated color zones in the living room or bedroom are always beautiful and even aesthetically pleasing. Naturally, in order to correctly carry out all the work on the installation of the ceiling, installation of LED strips and all other related equipment, it takes a lot of work.

But the end result will delight for a very long time if done correctly. The assortment of LED color strips is quite extensive and their correct selection is a rather complicated matter.

And yet, no matter how good they are, for their correct functioning a 12 V power supply (much less often 24 V) is required, and, of course, a control unit with parameters, which fit exactly the selected strip of light.

But what is it, what functions does it perform? And if so, is it possible to make an RGB controller at home?

Principle of operation

In essence, this type of controller is the brain of a home backlight. All commands that are given from the remote control are processed by it, and then the required signal will be fed to the LED strip, lighting one of the possible colors. Controllers can differ both in power degree and in the number of outputs, namely the light strips connected to the kinem. There is also a device with a remote control, and there is one without a remote control.

Manufacturing of LED RGB controllers There are still differences in the signal that will go to the tape, because the strip can be either analog or digital.

The difference between them is quite tangible, but the similarities are the same. All of them can work only with a power supply (that is, a transformer), since the LED strip has a nominal voltage of 12 V, and not 220, as illiterate people believe.

The point is that the analog LED strip, when the signal received from the device for control, lights up in one or another, but a single color along the total length. Digital has the ability to connect each LED with separate colors. It is for this reason that the controller for the digital light strip is more high-tech and its cost is much higher.

Connection variations

Naturally, the simplest method of connecting a device for regulating RGB will be the option in which only one LED strip or even its segment is connected. But this method is not the most practical, although it will not require the inclusion of any other devices in the electrical circuit.

The point is that no more than 6 meters of a light-type strip can be connected to one line of such a device, which will definitely not be enough for room illumination. If the length of the segment turns out to be longer, then the load on the LEDs that are closest to the controller increases, and as a result, it will simply burn out.

There is another problem when connecting long LED strips - a high power load on the thinnest wires of the LED strip.

When they are heated, the plastic base will begin to melt, and ultimately the cores will remain without insulation or simply burn out. And for this reason, if it is necessary to illuminate longer segments, use the following methods and connection diagrams.

Two strips of LED type

When connected like this to a controller, a pair of power supplies and an amplifier are required for the RGB strip light. The peculiarity of this type of connection is that the tape sections must be connected in a parallel method. Although they have one, namely a common electronic type device for control, power must be supplied to each separately.

The amplifier is used for clearer and clearer light of diodes. In other words, the voltage will go to 2 power supplies, and then from one of them it will go to the amplifier and then to the strip of light.

From the second unit, power will be supplied to the electronic control unit. Between each other, the control device and the amplifier are connected by an additional LED strip. This connection is schematically shown in the photo above.

A tape of 20 meters, which is divided into 4 sections

Manufacturing of LED RGB controllers It is worth talking about connecting RGB controllers. With this connection, it is advisable to use two power supplies each, but if they have a huge power output, then you can use one. Four sections with a length of 5 meters are connected, again, in parallel. A pair of strips is directly connected to the controller, and the second is also connected to it, but through a signal amplifier.

When connecting an additional power supply, the voltage from it will go directly to the amplifier.

This type of connection looks like in the photo above. Having figured out how to connect controllers and their varieties, you can try to make this device yourself at home. You just need to remember that you need to measure the power of the device and its output type voltage with the length and consumption of electrical energy of the LED strip.

Making a controller with your own hands

The circuit of such a device is not complicated, and the only drawback is that a controller made by yourself will have a very small number of channels, although for use in home the conditions are quite enough. Surely in the apartment everyone has a faulty Chinese garland with a small box 0 block to control the device.

So, the main details are just taken from it. It is inside such a block for controlling a garland that you can see 3 thyristor-type outputs. These will be the directions B, G and R.

Just to them you need to connect the LED strip. No cooling by thyristors is required, and the absence of a power supply is easily solved.

It will not be a big problem to find a non-working system unit from a PC. So, a transformer from it is perfect for this purpose.

And in the end it will be possible to save not only on the purchase of a controller, but also on the purchase of a power supply, while the unit can cost much more than the LED strip control device itself. Naturally, there will be no remote control, but you can still connect the LED strip to a three-key switch without spending a penny on the purchase of additional devices.

Will the game be worth the candle?

If we consider everything from the point of view of the logic of an ordinary person who is not keen on radio engineering, then, of course, buying a cheap controller will not be more expensive.

In addition, time will not be wasted on creating with your own hands. But for a true radio amateur, and sometimes just an enthusiastic person, assembling such a device on your own is much more pleasant than buying it somewhere in a store. But it's still worth trying to make a controller with your own hands, because the pleasure of the work done (and, moreover, successful) nothing can replace.

( 1 grade, average 4 of 5 )