Hello,
I've got a question: how can I make this driver only 1 mode?
I guess I need to bypass the MCU but which outputs of the MCU should I short circuit?
If you look at the first picture, you have to connect the lowest leg on the 7135 to the right with the top of the diode just below. A blob of tin could do it.
Then I would advice you to cut the connection to the MCU pin 7 or just clip the leg. It is the leg no.2 from the left in the upper row. You can see that it is connected to the blob of tin you just applied.
If you do not cut that leg, the MCU will struggle to pull the voltage down and use a lot of current maybe even give some smoke.
So you see it is quite easy, blob and cut.. Just be sure that it is really the 105A that you have.
Good soldering and welcome to the forum, hope you enjoy it.
thanks a lot, I'm already enjoying the forum a little while and it's my favourit :)
I will use this driver to build 1 mode flashlight based on L2 with an XML T6 and current 2,1A (for longer use considering the heat dissipation issue).
I'll also try to change the programm in the MCU to customize the mid level to 1,5A (found on other topic in this forum).
Aloha and welcome to BLF nazgool!
Glad to hear it!
Welcome to BLF and I hope you continue to enjoy your visits here.
Very interesting, thanks for the excellent details
1st welcome nazgool!
I wonder if youre capable of running 1h nonstop at 2,1A in the l2 host without overheating? I immagine you disabled 2 amc to get to 2,1A correct? Well if you did how much does mid an low draw now?
Where did you get this 105C version?
At KD.
I cant show the led side as it sits in the pill, but the batteryside is here:
http://img502.imageshack.us/img502/2784/driverz.jpg
how do you remove the modules to lower amperage? is it just as simple as desoldering the right amount of modules? does it matter which ones? I want to drive an xpg with this driver..do I remove 4 modules to make 1.4a? can the xpg take 1.75a with 3 modules removed?
thanks
Instead of fiddling with small items try this or similar:
thanks Nautic..I already ordered the 2800mah one..wish I would have known about this driver before..so to mod the 2800mah one is it just deoldering the modules? if I mess it up ill just order that 1400 mah one..
edit: the ebay driver seems to be 1-mode correct? I needed multi-mode so this wouldn't have worked..
KD has this http://www.kaidomain.com/ProductDetails.aspx?ProductId=9606
Looks like a 3-mode. You have to solder the amc7135 here though.
so it doesn't matter what slots you take out or put in with these drivers? I have the 2800mah one on the way so I can just take off 4 chips and it will run 1400 mah?
That's right. They are all in parallel.
perfect thanks!
I am a newb to this, but I have decided to attempt the driver swap this evening. I have a couple questions:
1. Will the driver work fine with the small spring that was provided with the driver? or did you swap a bigger spring on?
2. Which of the holes is positive and which is negative?
3. Do you have any more pictures of this driver installed, or pictures during installation that I can use as reference?
Thanks again for any help!
Driver will work fine with the spring removed. The only question is weather the battery can make contact with the driver when the spring is removed.
What holes? the center circle connects to the battery + and the outer circle connects to the battery -
I don't take pictures when I install/solder a driver. can't multi-task (yet)