Joule Thief

[poynt99]

Joule Thief enthusiasts,

For those seeking further challenges and improvements with this project, here is a circuit that claims to allow battery operation down to 250mV.

Credits to the author: Louis Vlemincq of EDN Magazine. (I put it all together in a convenient PDF.)

.99

[dasimpson]

Joule Thief enthusiasts,

For those seeking further challenges and improvements with this project, here is a circuit that claims to allow battery operation down to 250mV.

Credits to the author: Louis Vlemincq of EDN Magazine. (I put it all together in a convenient PDF.)

.99

50 turns base 2 turns collector i dont think so

[templer]

what i would like to know is why they have a diode going from base to negitive battery terminal
do you have msn ?
if so we might be able to talk more in real timethen waiting on emails telling us about new posts

@dasimpson
living in austria. installed msn, my msn identity is setun123. i am at home right now and will stay awake till 2230 utc. but never used before msn. so it could take some minutes to figure out what to do on the software....
best
jerrry

[dasimpson]

@dasimpson
living in austria. installed msn, my msn identity is setun123. i am at home right now and will stay awake till 2230 utc. but never used before msn. so it could take some minutes to figure out what to do on the software....
best
jerrry

let me add skype i do have an account but bee along while since i used it
btw for msn it is the full email that is needed to add as contact my skype is dasimpson1981

[freepow]

@ All,  I am testing a joulethief powered by 1x AA rechargable battery with 1x LED lit + charging a supercap,
          and I left it on overnight and I lost  4 mV on the run battery, but gained 192 mV on my supercap.

          Is this overunity by any chance ?

          I will be doing more experiments.