Joule Thief

[altrez]

WithOUT taking away anything from those wonderful folks who are using the cell phone charger, I do want to point out that 5.5v is the same thing as 4 NiMH batteries.

Also 150mA x 5.5v =825mW

where

150mA x 1.2v = 180mW

So there is a major difference in power IN to these circuits.

1 apple = not quite 5 oranges

thank you,

jeanna

Hey jeanna!

The cell phone charger starts with a 1.2 volt AA battery though. So its still only a 1.2v AA on the device either way.

-Altrez

[innovation_station]

Hey jeanna!

The cell phone charger starts with a 1.2 volt AA battery though. So its still only a 1.2v AA on the device either way.

-Altrez

so would the run time then be shortened big time drawing 825mw opposed to 180 mw .. ?

my little unit has been running for a few hours now still whipping along and i never changed the setting ...

the resistance has been constant the entire time .. 

12.83volts in it now ... 

i know this is real power as i used it in pulse motor tests it took 10 min to charge on the pulse motor but it had a 12vdc source ... this has a 1.2vdc source ..

and it did infact power my pulse motor as a car battery would have ....

: )

just didnt last as long ...

: )

ist!

[altrez]

@ist!

Yes run time is way shorter if you pull the 825mw =) but I am pulling 30 mw and lighting more leds with the cell phone charger then pulling 30mws with just the battery alone. Not sure why that is.

-Altrez

[jeanna]

@ist!

Yes run time is way shorter if you pull the 825mw =) but I am pulling 30 mw and lighting more leds with the cell phone charger then pulling 30mws with just the battery alone. Not sure why that is.

-Altrez

just didnt last as long ...

: )

ist!

I guess that is my point about watching the mw and not the mamps when there is a different voltage being used.

thank you,

jeanna

[innovation_station]

well the thing im playing with will likely run days on 1 battery ..  i have recharged that battery to over 13vdc ...

no worries ..  from like 8vdc start voltage ..  did not have to retune it .. 

simply useing higher voltage and doing the same thing .. will allow you to access to more of the good stuff ...

HENCE WHY I USE 12VDC TO CHARGE THE BOOST CAPS ...   and not 3 vdc  or 1.2vdc .. 

AND THEY CHARGE VERRY FAST!     imagine 24 or 48vdc supply and then jt'ed  to a bank of boost caps ... 

I COULD HAVE SHOWED YOU ALL BUT GADGET WAS GREEDY .. 

i guess you only get what you deserve ...

so life goes .. 

we call it karma ..  where i come from ..

W

here is a picture of a compleate ali coil driver unit .. 1.5vdc supply 12vdc recharge   

it is self regulating .. so if you put 24 vdc to recharge .. the cap will ballance it ...

if you understand what i mean ... if you put a aa to be recharged it will act accordingly ... 

: )

you only need to watch the full  votage as there is nothing to stop it from OVERCHARGEING YOUR BATTERIES...

build the hole thing for 30 bucks ...  including the rechargeable battery .. aa that is

the rs wire was the most expencive part 15 bucks ...

or if you want .. i will build them and sell them ... 

45 bucks each ..  no magnet no battery .. 

just a tested and working 4" ali coil ...

it sure would be nice to eat in a day .... 

give give give all i have ever done ...

and the didlers steal steal steal ... all they ever have done ....

so for  all the troubles i will make like 20 bucks max for building a single coil ..

BUT NOBODY CAN CLAIM MY WORK AS THERE OWN !

regards!