Is it possible to fix the LED strip if it burns out?
Hello, the situation is this, I bought a 3-meter LED strip a couple of days ago (I will attach the photo below). It turned out to be long, and when he saw the sign of scissors, he thought that it could be cut off. I cut off 60 cm from it and connected it, after that there was a loud pop and 2 LEDs burned out. I cut off the burned LEDs, soldered everything back, it burns down when connected. Then I saw that there is a gbu606 diode bridge on the wire. Can the tape not work due to the fact that this diode bridge burned out? And is it possible to fix it? Thanks in advance.
Loading...
A given ribbon, by analogy with a garland, a certain number of LEDs are connected, connected in series, so that the required voltage value is applied to each LED. If you shorten this tape, then the voltage on other LEDs increases accordingly - as a result, the LEDs burn out. The cut lines are relevant for LED years that are powered by 12 V - in them, between each two lines, a group of LEDs powered by 12 V, all these groups are connected in series and any length of tape can be cut along the cut lines. In your case, this could not be done. In this tape, the diode bridge rectifies the voltage and if it burns out, then the tape will not work accordingly.
At the expense of repair - if some of the LEDs are burned out, then you do not connect this tape to the 220 V network
And what is better to do in this situation, buy a 12V block and solder to it, or buy a diode bridge and solder it, I think 2 burned diodes will not increase the voltage so much (if not correct, correct). I found a video how to check the diode bridges on their performance, but I'm not sure if I checked them correctly, if it’s not difficult for you to watch the video and say the working diode bridge or not. (https://youtu.be/3lLrMH5-BRo)
If the tape was designed for 220 V, then it will not work from 12 V. At the expense of the diodes - I think yes, two diodes are broken. It turns out the diode bridge is faulty and it will not work for the tape power. In fact, if you replace the diode bridge, then two diodes will not play a role if you connect two pieces of tape. But perhaps the reason is not only in two diodes - the conductors could burn out.
I would recommend that you purchase a 12 V tape and a 12 V power supply of appropriate power for the future. Tapes like yours are unreliable. The mains voltage is constantly changing and excessively high voltage can be applied to the LEDs. The power supply for LED strips produces 12 V DC at the output, and the diode bridge connected to the 220 V network simply rectifies the current and the output is almost the same 220 V, but already DC.
Thank you very much. I will try to replace the diode bridge, then I will unsubscribe as I do.