Just got my TI booster...

[jiff]

First of a little anectdotal humor... I'm sitting in my living room watching TV, eating lunch, windows and door all open to cool off.... I see the fedex man pull up and I think "I'm not expecting a package?" and apparently I was, because it was a package with the TI booster in it... Just one, though, oddly enough... For some reason the other 3 did not ship with it.

Anyway... I took a look at the datasheet, and read another thread on this (courtesy of sci)... anyway, from what I gather I need to hook positive and negative input, and positive output? I got the impression there was no positive output, if this is incorrect, I should probably know that before I damage this.... annnnnyway (again)... I've gotten mixed messages on capacitors for this... First off, are they 100% necessary for use with an 18500? annnnnnd if I must have them, where do they go exactly?

If anyone has a picture handy of one of these suckers wired up it would be the biggest help (visual learner here).

Thanks everyone..!

EDIT: Also, does it matter where this is placed in the set up? My set up is as follows: Battery > on/off > momentary > atty. There is an LED, as well as a charger all in there too. So my question is quite simply, does it matter where the booster goes? Or can I slap it in there anywhere between battery and atty? It seems the ideal spot may be after the master switch and before the momentary (that's where there is a space in the box to put it atm), or after the momentary right before the atty (I can do a patch wire job I suppose).

again thanks for answers.

 

[Connman]

Think this might help. http://www.e-cigarette-forum.com/forum/battery-mods/94421-my-newest-dual-voltage-3-7v-5v-box-mod.html

Towards the end they say how to wire that critter.

 

[Charged]

This may help.

 

[laborer75]

The other 3 are on backorder. Hopefully mine shows up today or tomorrow. Glad you asked for pics because that was my next step. LOL. If I see one wired, I can do it. Words sometimes are my worst enemy. Need pics.

 

[misterD]

http://www.e-cigarette-forum.com/forum/modders-forum/94502-does-basic-scematic-look-right.html
im gonna wire a mini usb where the charger should be so i can use it as charger or 5V (or whatever i set on my multi-voltage power source) PT...
would be nice to stick a bottle in there...

 

[jiff]

@charged: Do you happen to have a top view of it? By what I'm seeing it looks like I was right in that it has + and - input and just + output. What I gotta find out is where those 100uf capacitors go... I can kinda see that one hooks the input + and - and it looks like the other is hooking the two +s?

Still looking for answers on my other questions... All help is appreciated...

 

[jiff]

Cap #1 pos lead to voltage out pin on Booster
Cap #1 neg lead to ground pin on Booster
Cap #2 neg lead to ground pin on Booster
Cap #2 pos lead to voltage in pin on Booster

If I'm reading this right... I gather I need two capacitors... Are the 100uf ones okay or is it necessary to go with the other ones mentioned in the thread connman posted? I also gather there will be three wires into the negative pin of the booster (both cap negatives and wire negative), then there will be two wires in both the output positive and input positive (wire and respective capacitor leg). If this is correct, cool!

If anyone has a top view and not just a side view of one of these wired it would be great...

I figure I'll stick this thing after the momentary switch of my box... So it will go battery > on/off > momentary > booster > atty.

 

[jiff]

If I were to use these capacitors would the longer lead be the positive lead?
100µF 50V 20% Radial-lead Electrolytic Capacitor - RadioShack.com

I'm not looking to make an order just for caps, so I'm wanting to just run out tomorrow before work to pick up some from crapshack.. as long they are 100uf are they ok to use?

 

[Sci]

Let's see if I can explain what I did here.

The right side of the picture is the side where the two posts are close together.
The left side of the picture is V-Out.
The right side is V-in.
The -(striped side) of the 2 capacitors are tied together with the ground wire & connected to the top right post.
The +(opposite side of the top capacitor) is tied together with the V-Out & connected to the top left post. (I covered the leg of the capacitor with heat sink.)
The +(opposite side of the bottom capacitor) is connected to the V-In & bottom right post.

I got 5V out of this, if it's wrong, someone chime in. It's been a long day.

 

[jiff]

Thanks sci that picture and brief description is EXACTLY what I needed. I take it the caps I linked will work since they are 100 and 20%? (I only say this because I can see a 20% on your caps so I assume they are the same except different brand).

This thing fully assembled with caps will fit quite snuggly in my box... Wow there is gonna be a lot in there!

 

[jiff]

Found these caps instead.. They look almost identical to yours only difference to the ones I linked before is these are 35v instead of 50v... Shouldn't make a big difference since I'm working with 5v...
100µF 35V 20% Radial-lead Electrolytic Capacitor - RadioShack.com

 

[misterD]

can i assume that the long legs are the positive side?

 

[Sci]

Glad I could help. Those caps are RS specials. I didn't feel like waiting til next week to get some, so I got what they had(100uf). I haven't mad a mod with this yet. I breadboarded it & got a solid 5v with it.

When you load up that box like you're talking about, make sure nothing is touching something it shouldn't. Don't need any unwanted surprises.

 

[Sci]

can i assume that the long legs are the positive side?

I honestly can't remember. On the ones I used, the leg where the stripe is was ground. I also just noticed the + written on the other leg in the pic I took.

 

[misterD]

i found the answer. and its yes, long legs=positive. the leg closer to the gray thing is negative (ground).
what happen if you have a 470 Ohm resistor on Vin and Vout?
and say you have Vin b4 the switch and Vout after it. does it mean you forcing the booster by having it running all the time? cos i can add the booster to where i have my LED on my JB (that would be Vout) but Vin would have to go straight to the battery positive connector... i could use the LED for Vin but it'd be too messy at my atty connector to solder Vout
i was also thinking about the possibility of having the booster being removable. if you had the booster on an enclosure with some pins (ground, Vout and Vin) you could arrange a receptor (breadbord?) on every single box you made and than...

 

[Sci]

i found the answer. and its yes, long legs=positive. the leg closer to the gray thing is negative (ground).
what happen if you have a 470 Ohm resistor on Vin and Vout?
and say you have Vin b4 the switch and Vout after it. does it mean you forcing the booster by having it running all the time? cos i can add the booster to where i have my LED on my JB (that would be Vout) but Vin would have to go straight to the battery positive connector... i could use the LED for Vin but it'd be too messy at my atty connector to solder Vout
i was also thinking about the possibility of having the booster being removable. if you had the booster on an enclosure with some pins (ground, Vout and Vin) you could arrange a receptor (breadbord?) on every single box you made and than...

Post a pic of the inside of your box(I take it you are going to add this to one already built?).

 

[chev327fox]

Guys I was wondering how does the booster supply enough amperage when boosting a 3.7v battery to 5v? Is this achieved with the capacitors? I thought the capacitors stored voltage to kind of add it to the current to make the voltage higher but doesn't that effect the amperage? Would you add more capacitors to compensate?

 

[5cardstud]

Are the caps even neccessary? I might be wrong but when the first guy posted a mod using the TI Booster it seems one of the electrical whizzes said they weren't needed. I would really like to know if anyone knows for sure.

 

[chev327fox]

Are the caps even neccessary? I might be wrong but when the first guy posted a mod using the TI Booster it seems one of the electrical whizzes said they weren't needed. I would really like to know if anyone knows for sure.

From what I understand the booster need capasitors to store the electrical charge then use that to increase the voltage, the booster itself probebly comes with one but not sure and you might need to add more then what it comes with.

I know the "Fistpack" by Nuck uses 2 capsityors and the "Duracell" mod I made that was a 5v charger had a booster in it and it was a 3.7v battery that boosted to 5v but it only did so at .6a or 600ma.

 

[5cardstud]

From what I understand the booster need capasitors to store the electrical charge then use that to increase the voltage, the booster itself probebly comes with one but not sure and you might need to add more then what it comes with.

I know the "Fistpack" by Nuck uses 2 capsityors and the "Duracell" mod I made that was a 5v charger had a booster in it and it was a 3.7v battery that boosted to 5v but it only did so at .6a or 600ma.

Heres one that didn't use caps: http://www.e-cigarette-forum.com/forum/battery-mods/42469-first-5v-mod.html
I've had one of those TI Boosters on the shelf for awhile and plan to build one someday. It didn't come with caps.