| Electronics > Beginners |
| LED strip lighting even without a positive terminal connection |
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| Adhith:
just shorted each of 10 output wires positive wires to the power ground through a 10K resistor and the problem is solved. I could move forward with this idea right?? also 10K resistor wont do much of power dissipation right? or should i try with a much more higher value for the resistor?? |
| exe:
--- Quote from: Psi on July 20, 2018, 12:10:18 pm ---yep, pretty normal, you are acting as an antenna and coupling in some 50/60hz AC mains. Doesnt take much to light up an led --- End quote --- I don't think so. Never seen an LED lit this way. A good 50Hz must be huge. |
| Adhith:
I haven't seen this type of disturbance before but now I did. any how its only noticeable at dark and so probably I would have missed before |
| exe:
--- Quote from: Adhith on July 22, 2018, 02:52:23 pm ---I haven't seen this type of disturbance before but now I did. any how its only noticeable at dark and so probably I would have missed before --- End quote --- Are you sure it's not leakage to ground? That's totally different from AC coupling through the body. |
| Gyro:
--- Quote from: Adhith on July 22, 2018, 02:52:23 pm ---I haven't seen this type of disturbance before but now I did. any how its only noticeable at dark and so probably I would have missed before --- End quote --- Some modern LEDs can be seen glowing at insanely low currents in a dark environment... https://www.eevblog.com/forum/projects/led-visibility-optimization-at-very-low-currents/ |
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