better brain than mine needed

[benjymouse]

I have asked a version of this question before and the responses got me so far, but this time it's with a twist.
Drive activity LED driving/triggering a 12 volt LED strip to display drive activity in an extreme way.
Would this idea work?
Is it wired right?
Any better idea's?
it's not much but it's important to me.
Any help appreciated.

Thanks in advance.

FQP30N06L MOSFET

 

[gollum99]

I would first check if you even need a molex or if the drive activity led pins would actually be enough... modern led strips are super easy to drive if you cut em pretty short...

[manikyath]

my knowledge about mosfets is really rusty, but i'm pretty sure thats not wired right, and you need resistors somewhere...

 

EDIT: my old workstation turned server has multisim on it, i'll figure it out for you

[Kobrastachka]

I don't think its right you have a positive going in and 2 negatives coming out, I think this would make it impossible to work because the circuit can't be completed but my knowledge of the part is very little 

[Kobrastachka]

are you trying to just make the leds turn on with the pc?

[manikyath]

@benjymouse i cant find that exact mosfet anywhere somehow

EDIT: anywhere in multisim

EDIT EDIT: my multisim is 11 years old... #fail #wellThereIsMyProblem

[Kobrastachka]

My led setup:

Note that my leds were rgb and that the back was actually white, Hope this helps. Sorry for shit drawing

EDIT: also to do the drive led thing you could put it in the middle of one of the lines and have it compleat the circuit but IDK

[manikyath]

My led setup:

Note that my leds were rgb and that the back was actually white, Hope this helps. Sorry for shit drawing

EDIT: also to do the drive led thing you could put it in the middle of one of the lines and have it compleat the circuit but IDK

what OP wants to do is have the LEDs flicker when normally the drive activity LED would be flickering, by having the drive activity LED header power a mosfet, which closes the circuit in the 12v line.

[benjymouse]

what OP wants to do is have the LEDs flicker when normally the drive activity LED would be flickering, by having the drive activity LED header power a mosfet, which closes the circuit in the 12v line.

Exactly right.

Well worded

Spot on.

Hitting the nail on the head award goes to you.

Thanks.

[manikyath]

http://puu.sh/g2jXh/33ab90ea88.png

 

i currently have this piece of magic switching between 47pV for off (acceptable) and 1.7V for on (unacceptable)

EDIT: appareantly these things are quite power hungry, and require 50 volts to switch

 

EDIT EDIT: i'm a derp, and solved the issue: http://puu.sh/g2kdv/212b440179.png

 

EDIT EDIT EDIT: your mosfet will blow up when switching the second one...

 

do note this isnt the exact mosfet you mentioned, but the closest one in my *cough* very updated version of multisim

 

EDITerino: attempt 3 is best so far: http://puu.sh/g2l4y/d745cec7ed.png

 

switches between 1.2uV and 2.5V, so still not right.