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Electrics

August 12, 2017 18:06

Connecting the LED strip to the network - the scheme , the selection power connection

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LED equipment is becoming the main source of lighting in various spheres of society.Industrial projectors and portable flashlights, lamps and lighting plinth screen monitors are made using LEDs.Such popularity of these semiconductor elements provided their reliability , durability and efficiency .LED strip is the most popular type in this product group.

connect LED strip scheme

wiring diagram LED strip

Concepts and types of LED strips RGB

LED strip is designed as a flexible framework, which applied to the contact track, combining the basic components -light emitting diodes (LED).

There are two main types of belts:

  1. Analog - parallel connection of LED-components without additional controls.Management is carried out across the tape at the same time (change color, brightness, mode of operation).
  2. Digital - use separate chips for each LED or section.This makes it possible to control each section of the tape, or a single LED separately.

Digital tapes are extremely rare, as their cost is very high.Analog tapes are used in large quantities to create a home a festive atmosphere, lighting bathrooms, lights, shop windows.

The structure of the LED distinguish 2 types of LED strip:

  1. Monochrome (monochrome).
  2. RGB tape - consists of a full-color light-emitting diodes capable of providing illumination of a large number of colors and shades.

luminous flux (light output) RGB-LED strip - select the lightest

LED strip has a different effect of the luminous flux.This characteristic is measured in lumens (lm) per meter and fully depends on the emitting diode.The following LEDs are used for the production of RGB-tapes:

  • SMD3528 (3,5h2,8 mm).The luminous flux is 3-7lm / m.
  • SMD5050 (5,0h5,0 mm).The luminous flux of 10-15 lm / m.
  • SMD5630 (5,6h3,0 mm).The luminous flux is 35-40 lm / m.

exact figure can only be determined for each color separately.Maximum characteristics of the range specified for the white color.

This basic form-factors LEDs for surface mounting (SMD).There are more and SMD3014 SMD5730-1.The first have very low emission characteristics, the latter are super-bright and capable of reaching values ​​of 100 lm / m.Used both types of rare.

To select suitable LED tape, you must decide on its purpose.

In the case of RGB-ribbon as the main or additional source of lighting, it is recommended to choose SMD5050.

If you plan to use to illuminate the eaves, beds, aquariums, you can use less bright SMD3528.

is necessary to think in advance about the conditions and the use of LED strip, as well as the possible hazard.In the case of standard terms and conditions of use of the apartment or house you can use a tape without protection (IP33).

If the room humidity or possible contact with water, it is desirable to acquire RGB-belt with the highest (IP67) or moderate (IP65) degree of protection.Security is provided by a silicone coated tape over the LED on one or both sides.

connection to the LED strip 220V

Connecting the LED strip to 220V is possible only using the appropriate adapter .Such a rule is optional, since the power supply LEDs are very few (2,5-5V).All belt consists of individual segments, in each of which there are three or six of the LEDs.The total voltage required for an individual segment equals 12V or 24V respectively.The total voltage across the tape as of 12 / 24V. V-Cr- tape

theoretically connect RGB LED strip directly to the mains possible.For this it is necessary to solder multiple tapes into one, the total voltage is equal to 220V.In practice, this method does not make any sense.Glow tape is shimmering as the current in the AC mains.The slightest voltage drop could easily knock out the entire tape completely.

How to connect LED strips to the 220?In this case, special transducers (adapter power supply) applied.Their task is to decrease the voltage to 12V or 24V, with simultaneous conversion of AC to DC.The converter is connected to the mains 220V power cord or electrical panel.Wiring tape to the LED 220 may be different, depending on the type of tape being used and their amount.

One monochrome ribbon

Direct Connection LED strip to the power supply is carried out with the correct polarity ( "+" and "-"), which appears on all food and ribbons.

connect LED strip with your hands

connect LED strip with your hands


Some monochrome ribbons

Connecting monochrome ribbons to one adapter is performed by parallel connection.Under this option, the connection is necessary to use a source with adequate power.Connecting the LED strip with their hands consistently possible, but the total length should not exceed five meters.

connect multiple LED strip with your hands

connect several LED strip with your hands


Wiring RGB LED strip to the network

Connecting to RGB LED ribbon network has some features.It has four contact groups (wirings).To ensure a certain glow color to each track served different amperage.Connecting 12V LED tape directly to the power supply will turn technology into RGB-monochrome.

How to connect LED strips 12 Volt RGB retaining all the features?For this purpose, an additional controller (dimmer) that controls the power supply to the R, G and B. Each channel connects the corresponding channel from the tape.Wiring for LED strip 220V with dimmer can be different.

One RGB LED strip is connected to the 220 via the controller as follows:

How to connect LED Strip 12 volts to one controller?If you need to install another tape five meters in length, it is possible to perform a parallel connection of the second segment.



To connect multiple RGB strips, it is recommended to use an amplifier.For the amplifier will need a source of the appropriate supply voltage.It is possible to carry out the supply of power from the already installed adapter if its power grabs, or to connect an additional power supply.

Wiring LED strips will be the next:

To perform a proper connection to the tape controller, you can use color and literal marking.The standard of the tape exit colored wires, each of which is connected to a specific connector:

  • Red - letter R.
  • Green - letter G.
  • Blue - letter B.
  • Black - V +.

Selection of power components for efficient LED tape

To ensure the efficiency and durability of all components of the chain, you must correctly choose their characteristics.The first step is to determine the power consumption of LED strip per meter (Watts).

is also required to calculate the load current (amps).It depends on the set of light-emitting diodes and their number:

LED

Number of diodes 1 meter tape, pieces

Power 1 meter tape,W

load current for 1 meter tape, A

SMD3528

30

2,4

0,2

60

4,8

0,4

120

9,6

0,8

SMD5050

30

7,2

0,6

60

14,4

1,2

SMD5630

30

15

1,5

60

30

3,0

Power LED RGB tape controller determines the characteristics or the amplifier to which it is connected.

For example, the current consumption of the LED in the tape SMD3528 RGB is 0.02 A.Provided that one meter tape 30 LEDs 0,6A turns / m.Since the LEDs are connected in series to 3 sections, then, according to the laws of physics, the load current must be divided by 3 and multiplied by 0.2 A received 5 meters tape and get 1A.Power consumption is five meters tape 12W (2,4Vth5m).As a result, for the operation of one SMD3528 tape (5m) must purchase a controller 12W power and load current 1A.To connect the two strips SMD3528 controller characteristics must be doubled. scheme - 2

power supply unit for LED strip is calculated in the last instance, to ensure the operation of the circuit the other elements.It is recommended to provide the power supply of at least 30% in order to prevent overheating.Proper connection of LED strip to the power supply will ensure its long-lasting performance.

View video on how to connect LED strip

Connecting the LED strip to the car

How to connect LED strips incars?It is necessary to focus on the supply voltage of the car battery, which can be 12V or 24V.Connect only the tape, use the appropriate voltage.Otherwise, the LEDs will glow or burn out quickly.

There are 2 connection options:

  1. Direct connection to the battery.To implement this method, you need to instal the tape and withdraw the power cable to the vehicle battery.Connection must be performed with the correct polarity.The disadvantage of this method is the constant glow tape, so it is recommended to install an additional switch to activate / deactivate.
  2. connection via the cigarette lighter.This option requires a special adapteras corresponding connector.

Mount and Connect LED strips

For reliable fastening tapes provided LED adhesive base, which is located on the reverse side.After removing the protective film can be made tape installation on most types of surfaces without the use of additional funds.

Depending on the power and protection of the tape fastening technology may be different:

  • For thin strips SMD3528 any degree of protection in which the heat dissipation is not so great, the installation can be performed on any surface.
  • SMD5050 tape mounting conditions depend on the duration and conditions of use.If tape is used as a main lighting for a long time, it is recommended to use a heat sink profile.Otherwise guaranteed overheating and rapid wear of the LEDs.When used as a lighting operation with a short time be mounted without the heat sink.
  • SMD5630 LED strip and its potent analogues are mounted solely on the heat sink profile.This requirement is caused by the large level sverhyarkihsvetodiodov heating.
  • Quite often required to illuminate a small piece of tape.For this purpose there are certain places where you can do the cutting.To make additional designations applied cutting lines.


Connecting multiple fragments tape can be performed with the help of wires and a soldering iron, or use special clips.

connecting clips are manufactured for all types of belts:

  • 10 mm 2 pin - monochrome ribbon SMD5050, 5630, 5730.
  • 10mm 4pin - RGB-ribbon SMD5050, 5630, 5730.
  • 8 mm 2 pin - monochrome ribbon SMD3528, 3014.
  • 8 mm 4pin - RGB-ribbon SMD3528, 3014.
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