I get around 160k measuring right at the atty connector. what do you get? Also your atty is connected directly from pin 5 to pin 3. with nothing else inline( series) with it. Your LED should be in parallel with the atty.
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I get around 160k measuring right at the atty connector. what do you get? Also your atty is connected directly from pin 5 to pin 3. with nothing else inline( series) with it. Your LED should be in parallel with the atty.
THANK YOU SO MUCH FOR POSTS 157 thru 160!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I attempted to build the EVERCOOL and I almost went NUTS trying to figure it out so I decided to try this one and success on the first shot with these diagrams!!!!!! Big Blue ... is there anyway you could make a diagram like this for the EVERCOOL and send it to me or post it? THAT WLD B AWESOME! I only have enough parts to try one more evercool and I am nervous because attempt number 1 was a failure! Either way, thank you guys sooooo much for this and all of the help you give us tech handicappers. You all are awesome!
Ok who took all the TI UCC383T-ADJG3 in the world. The first time I go and try a mod all the parts are gone. I found a 7-11 in asia that has em for 30.00 shipping 
Ok who took all the TI UCC383T-ADJG3 in the world. The first time I go and try a mod all the parts are gone. I found a 7-11 in asia that has em for 30.00 shipping
I got a extra one sitting here, if you want to pay shipping i will send it to you. Just throw me a PM if your interested.
Is this the right pot??
http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=3296W-204LF-ND
and the cap??
10uF 10V Dip Tantalum Cap (Pkg of 5)-The Electronic Goldmine
I can build almost anything just dont ask if I understand it. Thanks for all the imfo here guys.
http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=3296W-204LF-ND
and the cap??
10uF 10V Dip Tantalum Cap (Pkg of 5)-The Electronic Goldmine
I can build almost anything just dont ask if I understand it. Thanks for all the imfo here guys.
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Caps look ok . The link to digikey is not working right comes up with a blank page. Really depends what resistor you plan on using with the pot. What is your planned voltage range? I also sent you a PM about the chip , let me know what shipping method you want to use.
Link fixed.... Java I'm going to mail the funds to you and you can ship whatever is easiest for you.
The "EverCool" name should be trademarked, because it's used all over the forums now lol
Thats a 200k trimmer pot in the link. If you set Resistor 1 with a 62k ohm resistor hook the pot up as resistor 2 it will go from 1.25 volts to 5.282 volts. You never said your voltage range so i just picked that one to be a bit over 5 volts. If you set R1 with a 52k ohm resistor it will take you from 1.25 volts to 6.05 volts.
I will have another look around tomorrow for a extra stamp. I would just go ahead and send it first class mail but i am one stamp short. Kinda doubt i will make it to the post office tomorrow so might be next week before i can send it.
Edit:Thats also a 25 turn trimmer so it would take 25 full turns to go threw the voltage range.
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That's a great idea..... FYI... A few of us call this is one the everhot....lol
After reading this whole thread i am guessing your going to use the diagram posted back on page 17 i think it is. I was going off the data sheet for a typical circuit on this thing. IF you use all three pins of the trimmer pot you dont need a R1 resistor. The 3 pins on the pot will provide a R1 and R2. Circuits are kinda like the Kama Sutra there is more then one why to reach a blissful ending.
If you are going that route why not fiddle a bit more and make the entire range vapeable.
Example R1= 56k, R2=100k resistor in series with a 100k pot.
~ 3.5 - 5.7V (theoretically)
I kinda brain farted on that post. I thought this was the other thread about regulators didn't realize it was the everhot thread. But i was just answering the question if that trimmer would work and did a quick calculation from the data sheet. Didnt mean to step on this thread where there is already a circuit for it. I guess thats what the original question asker was planning on following.
But yeah i would for sure do a voltage of 3.2 to 6 volts if i designed from scratch. Or i should say when i design it. Finally got this PCB design program mostly figured out So i should be able to finish the mod i been working on for the last 2 months. Plus my rework station showed up today 270watts of solder melting goodness. But once i get my first one done i got some ideas for this everhot chip.
Dear crystal ball when you say R1 and R2 could you show the less fortunate of us ( ME ) what it is your talking about. In the diagram there is one resistor but its also named a pot which is short for potentiometer to confuse us, I also forgot linear potentiometer. I still blame my parents for not being rich and sending me to MIT. Since I'm not an electronics engineer Really big pictures with the correct words help. Usually these threads get derailed from the OP , my favorite is 6 pages of switch questions, or the mother lovin mosfet question thrown in just confuse the normal people. So in a final jump to glory I ask for but one thing dear crystal ball , One picture with the correct parts and words kinda like what the OP started 20 pages back.
It's 22 pages that mean very little to someone thats not an electronics guy. I even read where R1 and R2 go between ADJ and GND on the functional block diagram page 2. I will continue my journey in a quest for a single picture with a list of the correct parts that the OP did. Where did I put my crayons?
You asked about R1, R2 and you found it in the datasheet. Right?
You really should be building this mod.
http://www.e-cigarette-forum.com/fo...6-very-easy-vv-mod-w-switching-regulator.html
Much less confusing for newer modders with very easy to follow pictures, plus it's more efficient. You'll get longer vape times on the same batteries.
No sourcing or wondering which parts to get.
You really should be building this mod.
http://www.e-cigarette-forum.com/fo...6-very-easy-vv-mod-w-switching-regulator.html
Much less confusing for newer modders with very easy to follow pictures, plus it's more efficient. You'll get longer vape times on the same batteries.
No sourcing or wondering which parts to get.
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