This is a joule thief but with some differences of others joules circuits.
I can put any source of power but i use my 15W solar panel for the tests.
The coil is bifilar with 50:50 turns and the fast diode is on DRAIN of mosfet and go to the bridge. The negative come from the coil to bridge rectifier , in other circuits i usually see the negative directly from the source power.The CAP in the output of bridge is a 6,4 uf.
The selector switch change the resistor configuration on the gate of mosfet .Can select "Eco charge with 0.6W of consuming " or the super fast charge " About 10W but charge very very quicly".
90% of the parts of circuit are from trash.
"For more experiments visit: http://isparktube.com/newview"
I accept Donations for my research's by paypal or old and wasted electric components materials.
Morada para envio:
Rua do Viso entrada 63 habitação 93 4470-220 Porto Portugal