Need a circuit schematic - PLEASE!

[Rykk]

Hi, I'm trying to fix some batts - one, especially that has a part visibly burnt. I've been unable to find anything on the 'net on the markings on the chips. 3-pin sot23-ish parts. From what i can piece together, it looks like there's a PIC chip (8-10 pin leaded smt) and two 3-pin parts on the main board of the batt. Maybe a transistor/diode and a zener or regulator? I found a surprise inside the vacuum switch - a tiny 3-pin chip and a resistor! (explains why just using a switch didn't work on these).

Anyhow, I'm guessing the vacuum switch just biases a transistor to let current pass to the atty which saves the need for a big honkin' switch and I'm not sure what the other 3-pin guy is. Maybe a diode that allows voltage from a charger to connect to the battery?

What I REALLY, REALLY, REALLY need is a schematic with some detail so that I can see what's going on exactly and what to replace parts with. Surely someone has reverse engineered one of these things by now...

Thanks,
Rick

 

[Java_Az]

First off i have no idea what your working on you didnt post a model #. Even with the model number i dont know of any circuit diagrams for commercial Ecigs. Maybe someone has reverse engineered one and posted it somewhere, but the Company that makes them sure wont be putting one out for the public to view. the little circuit board thats in a 510 auto battery is a protection circuit / mosfet . Keeps the batteries from over charging and over discharging and supplies voltage to the atomizer when the sensor detects vacuum. Having said that you better off just buying a new battery then trying to fix one. Unless your just wanting to learn. If your looking to learn i would suggest you look into building a mod there are plenty to choose from posted here in the forums and lots of folks that will answer questions if you need help.

 

[Rykk]

The one I'm working on is a DSE910 bought from heaven gifts. Got some m4xx series ones I'd like to mess with as well. As far as mods, if it doesn't handle like a "real" cigarette, I'm not too interested. Don't want to carry around some kind of box and like to keep my hands free to do stuff.

As to buying new ones; well, sure I could but it takes a good while for stuff to show up in the mailbox and shipping charges - at least from China - are a drag. Besides, I'm in a lab, have all the required tools, and can't see wasting like $80 worth of batts that I could fix if I knew what parts were on the boards. I've worked on 4 or 5 different sizes/brands of batt and the circuitry is nearly identical for all of them. Just mainly a difference in the quality of the parts and workmanship along with different chip and/or switch vendors. But the architecture of the circuit design is pretty much the same. The part markings are what i can't seem to find and I suspect that either the Chinese have their own system or the vaporette makers have their own codes. Probably the latter as I have seen the larger chip marked "E-cigarette" in KR808-D2 batts made by Kanger.
Rick

 

[Rykk]

Oh yeah - they are auto-batts for the most part.