Electronics > Beginners
LED strip lighting even without a positive terminal connection
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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