hi all! i would need help with a small problem i have here.
Installed the new stairs in the house, which have integrated led strips under each threads ( 18 leds strips ) .
Bought a controller online from Ukraine, thinking it would be powerefull enough. Seems i was wrong.
So the problem here is that all the Led strips are " siliconed " in the stairs now and i cannot reach the connections at the back without many many hours of work ( would have to take out every strips, cut them in length a bit and echange wiring )
The original controller called for a comon positive and controller from the negative side ( 12V DC ) so i wired the Leds accordingly and the wires go through the post and the wall ( lol ).
Since i didn't know the power of the strips when i placed the order
( had not received the stairs yet ) i assumed the controller had enough current on each channel, which it doesn't.
Neway the seller offered a schematic using P Mosfet to alleviate that problem
but it would require me to reverse every wires and probably 8-10 hours with chances or scratches and breaking something etc ...
So he then supplied a back to back mosfet schematic that was supposed to work to get back to driving the leds from the negative.
I bought all parts and assembled, seemed to work from the single one i tested but once everything is connected now the lights are all on all the time
and the controller shuts them down instead of turning them on . lol
not much experience with electronics, at least not enough to figure out a way to fix this
So please tell me ( if what i wrote made any sense..if not my apologies )
if there is a way to use a negative controller through mosfet(s) to run common positive 12v leds ( the moseft i think are required cause there is some PWM involved for the fading in/out etc.. )
I will post original schematic and updated one.
thanks for any help !
Installed the new stairs in the house, which have integrated led strips under each threads ( 18 leds strips ) .
Bought a controller online from Ukraine, thinking it would be powerefull enough. Seems i was wrong.
So the problem here is that all the Led strips are " siliconed " in the stairs now and i cannot reach the connections at the back without many many hours of work ( would have to take out every strips, cut them in length a bit and echange wiring )
The original controller called for a comon positive and controller from the negative side ( 12V DC ) so i wired the Leds accordingly and the wires go through the post and the wall ( lol ).
Since i didn't know the power of the strips when i placed the order
( had not received the stairs yet ) i assumed the controller had enough current on each channel, which it doesn't.
Neway the seller offered a schematic using P Mosfet to alleviate that problem
but it would require me to reverse every wires and probably 8-10 hours with chances or scratches and breaking something etc ...
So he then supplied a back to back mosfet schematic that was supposed to work to get back to driving the leds from the negative.
I bought all parts and assembled, seemed to work from the single one i tested but once everything is connected now the lights are all on all the time
and the controller shuts them down instead of turning them on . lol
not much experience with electronics, at least not enough to figure out a way to fix this
So please tell me ( if what i wrote made any sense..if not my apologies )
if there is a way to use a negative controller through mosfet(s) to run common positive 12v leds ( the moseft i think are required cause there is some PWM involved for the fading in/out etc.. )
I will post original schematic and updated one.
thanks for any help !
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