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Overunity Machines Forum



Lasersaber strikes again. A joule thief king ?

Started by hoptoad, May 01, 2014, 02:54:40 AM

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madsatbg

#155
May 24, 2014, 01:38:06 PM

Sequel economical flashlight with two LEDs.
LED Light twenty minutes +.
Experiment with Faraday cage, remains lit.




https://www.youtube.com/edit?o=U&video_id=224914xMBGk


regards

a.king21

#156
May 24, 2014, 08:41:33 PM
Quote from: madsatbg on May 24, 2014, 01:38:06 PM
Sequel economical flashlight with two LEDs.
LED Light twenty minutes +.
Experiment with Faraday cage, remains lit.




https://www.youtube.com/edit?o=U&video_id=224914xMBGk


regards


Your link does not work for me.

Pirate88179

#157
May 24, 2014, 08:51:48 PM
Quote from: a.king21 on May 24, 2014, 08:41:33 PM

Your link does not work for me.

Me neither.  It takes me to my own videos......I have no idea why.

Bill
See the Joule thief Circuit Diagrams, etc. topic here:
http://www.overunity.com/index.php?topic=6942.0;topicseen

madsatbg

#158
May 25, 2014, 02:12:11 AM
Quote from: a.king21 on May 24, 2014, 08:41:33 PM

Your link does not work for me.


Please apology for.


http://youtu.be/224914xMBGk

conradelektro

#159
May 25, 2014, 08:17:51 AM
Quote from: madsatbg on May 22, 2014, 06:47:05 PM
http://youtu.be/jbBroLeXl_4

Quote from: madsatbg on May 25, 2014, 02:12:11 AM
http://youtu.be/224914xMBGk

@madsatbg: I like the self made printed circuit board, well done.

I plan to try with the OpAmp TLV2401 switching the transistor DMG1012T-7. At the moment I am testing various transformers I have to light 220V 0.7 Watt to 2.5 Watt LED lamps with two 1.5 V batteries (2 V to 3 V supply Voltage).

I will be very similar to this MAX931 circuit (but with the TLV2401 and the DMG1012T-7:

http://www.overunity.com/14591/lasersaber-strikes-again-a-joule-thief-king/msg402853/#msg402853

I will also look at this TPS61097A "Low Input Voltage Synchronous Boost Converter With Low Quiescent Current", it would allow to drive a LED starting with 0.9 Volt. It is an overkill to just drive a LED, but why not. I want to drive a LED with its nominal continuous current to get the most light with a single battery.

http://www.mouser.com/ds/2/405/slvscf2-317299.pdf

Greetings, Conrad
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