LED power supply connection, LED light strip power supply method

In fact, it is easy for you to search for what you want.

LN is 220V AC input, from the mains to lead out two fork terminals to connect, because it is a single-phase AC, L and N are connected at will.

Three horizontal and one vertical is the grounding end of the power supply shell, sure enough, the plug used in the previous step is the kind of three-ended, this position is connected to the grounding end, and it is okay to put it here if you use two ends.

com +V is the output of this power supply, which is equivalent to the ground of this power supply +12V (power specification), just pull it out and connect it into your circuit.

ADJ is used to adjust the output voltage, for example, the output should be 12V, and in the case of the actual output, you can adjust it with a screwdriver or something.

That's about it.

The power connection of the LED display is very simple,,10 boards,42A,,12 boards 51A current yo (full bright)

Generally don't exceed 12, pay attention!

Output voltage regulation range. 10%

Voltage regulation (full load).

Output overload protection. 110%-150% intermittent mode, automatic recovery.

Rise time, hold time .50ms, 20ms full load (typical) electrical strength .i p-o p,i p-fg:,o,1 min operating temperature. 0-40 @100%, 10%@80%, 50 @60%Storage Environment.20 +85, 20% 95% RH (no frost) safety standard...

Comply with GB4943, UL60950-1, EN60950-1

EMC Standards...Comply with GB9254, EN55022 Class A heat dissipation mode...The air is naturally convection-cooled.

Weight .Registration Information:

The special power supply wiring of LED light box is generally divided into two parts: input line and output line. The specific wiring method can be determined according to the specific model and parameters of the power supply, and the following is the general wiring method:

Wiring method of input line: usually need to be connected to the mains, according to the identification or manual of the power supply to determine the voltage and current parameters of the power supply, generally need to connect the input line of the power supply to the live wire and neutral line of the mains.

Wiring of the output line: It usually needs to be connected to the LED light bar of the LED light box or other LED lamps. It should be noted that the output current and voltage of the special power supply of the LED light box must match the rated current and voltage of the LED lamp to ensure the normal operation of the lamp.

Generally speaking, the wiring method of the special power supply of the LED light box is similar to the wiring method of the mains socket, you need to plug the input line of the power supply into the socket, and connect the output line to the light bar of the LED light box or other LED lamps. Before wiring, it is necessary to confirm the electrical parameters of the power supply and the luminaire to avoid damage or safety problems caused by mismatched parameters.

In order to ensure safety, it is recommended to cut off the power supply before connecting the beam cluster wire, and use insulated wires and insulating tools for wiring. If you are not familiar with electrical wiring, it is recommended to have a professional electrician do the wiring.

LED strip light is mainly used for dark groove, contour lighting, KTV, hotel decoration and so on. Users can choose the appropriate effect according to the light needs of the actual occasion, which is convenient to use, energy saving and power saving. We now use a lot of LED strip lights, monochrome such as white light, warm white, red, green, blue, but how do they connect to the transformer, many friends get the product after the end is located in the fog water, we now use 505060 meters of non-waterproof DC12V white soft light strip for example.

Prepare a 5-meter-long LED strip, a screwdriver, a power cord, and a transformer.

Yeqi connected the red and black wires of the LED strip to the positive and negative poles of the 12V output terminal of the transformer respectively.

Connect the positive and negative terminals of the power cord to the positive and negative terminals of the 220V input terminal of the transformer, respectively.

Finally, plug the power plug into the 220V alternating current, and you can work as a song.

Multiple LEDs can be connected in series, and then a current-limiting resistor R can be stringed. r=(vc-vz n) 10mA, which requires a higher supply voltage.

It is also possible to connect multiple LEDs in parallel and string a current-limiting resistor R. r=(vc-vz) n 10mA, If there are more LEDs in this method, the current is too large, resulting in low efficiency of the power supply.

The third method is the hybrid connection method, which can take into account the advantages of the previous two connection methods, and is often used in LEDs.

Note: VC is the power supply voltage; VZ is the on-voltage of LED, generally 2-3V; n is the number of LEDs).

You can see that you can connect up to 8 boards with one power supply.

This question is too general, there are more LED circuits, and what circuits are specific to achieve what purpose.

I connected it in parallel, but when I connected it, the transformer burned, did the transformer burn or did the LED light burn? The transformer burns when the load is overloaded, is there a positive and negative polarity display or requirement for the LED light? The polarity is connected incorrectly, will it burn, does the withstand voltage of the LED lamp match the output voltage of the transformer?

Is there a positive and negative polarity indication at the output of the transformer? Please check it out.

The output line of the power supply group carries 4 P10 modules, the second module from top to bottom is the terminal of the power output line, module 1 is connected in parallel with module 3 and module 4, and the current is shunted to the upper and lower sides. The output cable of the power supply group carries 4 P10 modules, and the power output cable is connected to the top 1 module. The current is supplied in series from top to bottom to 4 modules.

The single P10 module works with a maximum current. Load according to the T-type connection method. then the maximum current of the power supply connection line of the module with a cross-sectional area of 1mm is the connecting line from module 2 to module 3, and the connecting line is responsible for supplying power to module 3 and module 4.

Then the passing current is within the normal load range of the wire with a cross-sectional area of 1mm.

L line, N line is connected to 220V mains power (connected to the socket at home), and the grounding wire behind the N line can be used indoors.

GND (three bits), which connects to the negative pole of your light bar (usually a black wire or a white wire);

12V (three bits), connect the positive pole of your light bar (usually red wire or brown wire);

After the power is on, if the light is not on, then the GND and 12V on the line are reversed, if it is still not lit after the switching, either the lamp is burned, or the power supply is broken, or the line is open.

L is AC positive, N is AC negative, the one next to it is AC ground, GND is the negative power of the output, and 12V is the positive power of the output.

You can find Suzhou Liansi Electronics for LED wires, which are very good companies, and I hope to help you.

LED drive power supply is to convert the power supply ** into a specific voltage and current to drive the LED light converter, usually the input of the LED drive power supply includes high-voltage power frequency AC (i.e., mains), low-voltage DC, high-voltage DC, low-voltage high-frequency AC (such as the output of electronic transformer), etc. The output of the LED driver power supply is mostly a constant current source that can change the voltage with the change of the forward voltage drop value of the LED.

Circuit diagram and schematic diagram of LED light driver for 220V power input:

Generally, the inside has been connected, just install it, connect the remaining two mains wires to the mains, light up to see if it can be controlled, close the curtains to see if there is a little light, if so, pour the zero line and the live wire at the switch.