Selecting and connecting the power supply for LED strip 12V

to connect electricity consumers in the Russian operating standards provided AC power 220 / 380V 50Hz.Since the power LED strips is carried out by a pulsed source of stabilized voltage of 24 or 12V, the device is required, which converts high AC voltage to a lower.

this task successfully copes power supply for LED strip (BP) .The stability and duration of the backlight is provided by a competent selection of the power supply.

Any of the commercially available models allows operating illumination over a wide temperature range, good smooths out transients and has a housing that protects the internal components from damage.

Driving power LED strips - power supply circuit

Connect the power LED strip with your hands is not so difficult.The main thing - just follow the tips outlined below.

Before buying a particular model of the rectifier (BP) is necessary to deal with the question of how to connect the LED strip to the power supply.

LED strips can be connected to a power source in different ways.With precise adherence power LED strips even one powerful device is capable of working as a single, and a few highlights.

For parallel connection of two LED strips to one unit need an additional extension cable - wire cross-section of not less than 1.5 mm.Observing polarity, one end is connected to the power supply output, the second - to strip №2.In this case, no current will be supplied along the paths of the first illumination and for wiring.

When applying large-sized powerful PSU is unacceptable, use low-power power supplies for LED strips 12 Volt.Wiring plan provides for a separate power supply for each diodes strip.There will also need an extension cord - a wire that connects to a network of 220 V and a particular tape, but its cross section can be smaller - just 0.75 mm.Although in this case the installation of a more sophisticated, this connection diagram is often used in practice, since it calls for the use of small size BP.

To hide the power supply LED strip?

place to accommodate the power supply is selected taking into account:

1. the wiring scheme;
2. number of devices, rectifiers;
3. block size.

suitable options for placing large PSU can be specially made aperture in furniture or a separate shelf on the wall, equipped with non-viewing side of the table.

In the case of small-sized power supply units (not more than 250h150h100 mm) is much simpler:

1. can be hidden under the headliner;
2. cut a special place in the plasterboard wall;
3. install PSU in a wall niche.

Power Supply for LED strip - types and features

Leaking or open units with a capacity of 100 watts used to supply consumers in closedresidential and commercial premises.Devices of this type are easy to identify: they are usually distinguished by the large size and weight, are marked accordingly IP20.

hull walls include perforations, providing heat dissipation, are made of plastic or sheet metal.Scope: Power equipment.Place to place: special cabinets or hardware niche.

for use in outdoor environments suitable power supply for LED strip 12V, sealed housing which is made of sheet aluminum.Although this device has a considerable weight (1 kg) and dimensions, it is perfectly removes heat, has good protection from the adverse effects of natural factors (sun, cold, rain, snow) and IP66 marking.100 watts of power such BPbudet enough for the backlight of the two tapes.Application: illumination of street signs.

Semi-hermetic (all-weather) BP can be classified as generic devices.Devices are used both indoors and outdoors.Block dlyapitaniya applied for LED strip 12V, has an IP54 rating and a housing made of sheet metal.

The best solution to date - sealed power supply for LED strip with plastic housing .Power unit does not exceed 75 watts, it is fully protected against ingress of moisture, it has a small size and weight.Even using the power of two LED strips, two PSU this type of 50 watts, they are easy to hide from human eyes in every corner of the room.Place of application: interior lighting.

How to calculate the power supply unit?

power supply unit for LED strip depends on the connected load it.If small enough consumer power supply 40 W, for the more solid structures may need a device whose power reaches 0.5 kW.

To calculate the competent PSU power you need to know:

1. number of LEDs for illumination involved;
2. load (power consumption), created by the 1 meter LED strip - is taken from the table;
3. total tape length (standard size - from 1 to 5 m);
4. KZ safety factor = 1.2.

1. Determine the total load .To do this, the power consumption of 1 meter multiplied by the footage of LED strip.

2. To accurately calculate the power PSU total load multiplied by a coefficient KZ stock.

Since the wiring diagram prisutstvuettakoy element as RGB controller, the final power parameter BP is determined by taking into account the capacity of the controller - its value is typically less than 5 watts.

Popular models of power supplies for connecting LED strips

Modern industry offers consumers a wide range of power supplies for connecting LED strips.Power supply unit for connecting LED groups selected on the basis of parameters of voltage required for backlighting (12 or 24 V, respectively), the required capacity and operation space.

Model PV-15.

most low-power switching power supply for LED strip 12V power of 15 W, is used to connect the tape, designed for 12 volts.Has a waterproof aluminum housing integrated network filter to protect against power surges.Estimated time of operation more than 200 thousand hours.The best option for accommodation in the street.Product price is 560 rubles.a piece.

Model PV-40.

By design - analog of PV-15 with enhanced power options - 40 watts.Designed to connect LED strips running from napryazheniya24 / 12 volts.PV-40 - Block LED strip on Tsenev within 1,000 rubles.

Model LV-50.

design feature - a sealed plastic housing.Switching power supply is protected against power surges, short-circuit in the network and is designed for use in outdoor environments.

integrated network filter ensures a stable unit operation in a Russian electrical grids.It operated at temperatures from minus 25 to plus 40 degrees Celsius.Operation hours - more than 200 thousand hours.Product price - 1050 rubles.

Model LPV-100.

Switching Power average power supply - 100 Watt.Designed to connect bands with 24/12 V voltage and has a sealed structure and aluminum housing.For products characterized by overvoltage, overload, short circuit.Ideal for steady work in the conditions of Russian electrical grids.Estimated period of operation - more than 200 thousand hours.LPV-100- quality power supply for LED strip, the price of which does not exceed 2250 rubles.

Model SUN-400.

unit increased power supply switching type - an excellent solution for the operation of LED strips.It has a short-circuit protection, voltage surges.cooling principle - free air convection.Provides job tapes designed nanapryazhenie24 / 12 volt indoors, power - 400 watts.Successfully passed tests for performance in conditions of Russian electrical grids.Product price - 3600 rubles.