More progress. Got a new multimeter and I ran tests on a 4.8 volt NIMH battery pack measured volts and amps using two meters and a load test with a 2.7 ohm 10 watt ceramic resistor. Stopped testing at 30 minutes. I did not know how low I could take the batteries without damaging them...
I was thinking that the battery would be driving the atty and the USB Charger would be charging as I was vaping.
I wondering if the charging and the vaping could happen at the same time?
Thanks for the reply
I was poking around in the Candle Power Forum and came across a post about a USB charger board.
"universal 1A lithium battery cell liion li charger board module In4.5-5.5V USB"
that was being sold on ebay.
I was thinking that I could use that with the IC board that I got today as a sample...
Mamu,
Thank you for posting these diagrams
I was having a bit of trouble figuring out how to use one voltage display for battery.
Your diagram was easy to understand.
I was wondering how to put an amp meter display on a mod.
Do you or anyone else have any thoughts on this?
Lonnie
I am learning how to design the circuits I will be using.
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I like the the input and out put voltage are buffered by capacitors.
What is the range of capacitance that makes sense to use for buffering.
How do I go about figuring something like that out?
###
With adjusting the voltage...
Well progress is being made.
Soldered a few connections
Figured out that the LCD lamp is a one way street as to polarity. )
Resistor on the plus side and negative lead on the other.
Need a T handle reamer, Saturday's trip into town. ( we live in the country)
I also found that there really...
Puckecig.com says the NIMH work fine and last a long time with a 3 ohm atty in the "puck" mod that I am building Now.
The second mod with the TI Board, I will start out with the NIMH's and see how they perform.
I can always rework the battery box for Li-on 14500's, probaly get 2 if not three of...
What I really want is a box that measures about 1.25" x 1.25" x 5"
I could put 4 each AA batteries in the bottom.
On the top I could put circuits, lcd's, switches, meter face, and recess a Vivi Nova with back lighting.
But 1 step at a time.
Got to have a goal.
In this "dream Box I would...
Robocog,
I am at present fascinated with NIMH AA 2000 mAh Batteries, Easy to buy and replace, safe construction.
4ea = 4.8 volts and 6ea = 7.2 volts
I found some interesting boxes at http://adafruit.com"]http://adafruit.com"]http://adafruit.com
5in x 2.8in x 0.76in, 8 x AA battery...
The Ti Chip is a
UCC283-ADJ
(ACTIVE) Single Output LDO, 3.0A, Adj.(1.22 to 8.5V), Reverse Current Protection, Thermal Shutdown
It is being sent to me as a free sample.
Started working on my first battery mod, A Puck.
Just need some silver solder, T reamer, Helping hands with mirror. I have everything else.
Texas Instruments is sending me a simple Variable Voltage Pulse Modulated Power Modulator.
I have not picked up a soldering iron since '74 in the Air...
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