Good news
I don't know if Nico or Laredo want to contribute suggestions on charger chip or how best to allow passthrough while charging (or not) ...
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Modder's Printed Circuit Board
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Good news
I don't know if Nico or Laredo want to contribute suggestions on charger chip or how best to allow passthrough while charging (or not) ...
I don't use a charger chip in my mods, I let the charger do the work. ;-)
For the charge while vaping, I just wire the battery and charger in parallel. That worked great for the boost converter mod I did in the PV_Pak. Not sure if it will work as well with the voltage regulator mod I just posted. But then again, that may not be the correct or best method.
For the charge while vaping, I just wire the battery and charger in parallel. That worked great for the boost converter mod I did in the PV_Pak. Not sure if it will work as well with the voltage regulator mod I just posted. But then again, that may not be the correct or best method.
I just went to microchip to order a few charger chips and guess what?
25 chips cost 14$ and shipping and handling fee is 34.20$ for a total of 48.20$
I am searching for alternatives right now as I do not intend to waste money.
For this price I can get 20 chargers from DX...
25 chips cost 14$ and shipping and handling fee is 34.20$ for a total of 48.20$
I am searching for alternatives right now as I do not intend to waste money.
For this price I can get 20 chargers from DX...
Can't seem to find a good and convenient charging chip, any help guys? any other ideas?
Cheap, small and with few to none external components.
Considering the already planned microcontroller, a charger could be implemented in software, but a dedicated small charger chip is safer.
Considering the already planned microcontroller, a charger could be implemented in software, but a dedicated small charger chip is safer.
Browsing DE, are these useful?
DealExtreme: $1.19 Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (13.4mm*1.7mm)
DealExtreme: $1.27 Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (15.8mm*2.3mm)
DealExtreme: $1.27 Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (17.4mm*1.9mm)
DealExtreme: $1.19 Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (13.4mm*1.7mm)
DealExtreme: $1.27 Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (15.8mm*2.3mm)
DealExtreme: $1.27 Charge/Discharge Protective Circuit Board for Rechargeable Li-Ion Batteries (17.4mm*1.9mm)
Not helping at all, I look for a charger controller.
Just protection is easy to build in the pic, and we should use protected cells anyway.
Kinabaloo, what would you use as a current limiter and current sense?
I'll try to browse for a PIC lithium charger and see what comes up.
Just protection is easy to build in the pic, and we should use protected cells anyway.
Kinabaloo, what would you use as a current limiter and current sense?
I'll try to browse for a PIC lithium charger and see what comes up.
This 5 pin one seems fine: http://www.e-cigarette-forum.com/fo...dders-printed-circuit-board-5.html#post380896
Personally I'd just stick with usb charging (and 'passthrough'), no PIC; but it's up to you! Some car problems taking up my time at the moment ...
Here is one @ $0.63 each:
Digi-Key - MCP73811T-420I/OTCT-ND (Microchip Technology - MCP73811T-420I/OT)
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There is no way for me to get these chips at reasonable prices. I cannot find them at local distributors nor can afford the shipping prices that maxim or microchip tax.
Maybe because Li chemistry isn't used so much here, but that's not an excuse for local distributors.
Until I find a solution, I will follow this thread and help in any way I can.
Maybe because Li chemistry isn't used so much here, but that's not an excuse for local distributors.
Until I find a solution, I will follow this thread and help in any way I can.
Well, I did it.
You can see here: http://www.e-cigarette-forum.com/fo...-touch-sensor-usb-rechargeable-nicostick.html
and here: http://www.e-cigarette-forum.com/forum/battery-mods/31018-usb-rechargeable-nicostick.html
It's 4cm x 1,4cm.
You can see here: http://www.e-cigarette-forum.com/fo...-touch-sensor-usb-rechargeable-nicostick.html
and here: http://www.e-cigarette-forum.com/forum/battery-mods/31018-usb-rechargeable-nicostick.html
It's 4cm x 1,4cm.
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Crrraaaccck, and folks it is going, going, GOING, GONE. Out of the park for me.
Good Job Ceasar
You do REALLY NICE WORK
Burnie
Good Job Ceasar
You do REALLY NICE WORK Burnie
There are some sites that let you upload circuits you have properly designed and have them made and shipped too you. The pricing varies. Someone, hint hint, could always find the site with the best deal and upload. I even believe some of them catalog what you submit and anyone could order them. Of course that's just a thought. Hell you could probably start selling them online.
For sure I can make them cheaper myself. Other then ordering PCB's from China there is not a single place I know of that can make 10 pieces of that under 2$/piece.
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Crrraaaccck, and folks it is going, going, GOING, GONE. Out of the park for me.
Good Job Ceasar
Burnie
Your too funny Burnie I thought the same way until I decided to do some research. I think I'm going to take a CRACK at it. All that can happen is that I mess it up, then I'm back to the tacktile switches...LOL
Just want to let you know that I found someone that will make me 30pcs. of the circuit board for ~3$ shipped. Will get back when I have the boards.
I just got the PCB's I've ordered 2 hours ago.
If there is interest in just the PCB or complete soldered PCB then I think I have to register as a supplier, right?
If there is interest in just the PCB or complete soldered PCB then I think I have to register as a supplier, right?
Id defiantly be interested in a couple of PCB's, preferably unsoldered (i wanna practise) but with parts-makes it easy!
You probably will have to register as a supplier, i would check with the admins to be sure.
You probably will have to register as a supplier, i would check with the admins to be sure.
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