9V from 2 AA cells

space-cake · 7th October 2006, 04:02 AM

i've looked on google and could not find anything. anyone got a link to a small and simple circuit?

neutron7 · 7th October 2006, 04:14 AM

look at this national boost converter chip or similar

http://www.national.com/pf//LM/LM2733.html

It can handle about half an amp load if thats enough.

sivan_and · 7th October 2006, 02:23 PM

Whatz your o/p current ?
Want to replace PP3?

space-cake · 7th October 2006, 02:25 PM

i actually need the best efficiency i can get between 6v and 9v from 2 aa batteries. a 9v battery would be used normally.

sivan_and · 7th October 2006, 02:50 PM

RussB · 7th October 2006, 03:13 PM

sivan_and · 7th October 2006, 04:05 PM

Even using discretes is possible...I remember a circuit published in EDN "Ideas for design"....

7th October 2006, 04:02 AM	#1
space-cake diyAudio Member Join Date: Apr 2006 Location: home	9V from 2 AA cells i've looked on google and could not find anything. anyone got a link to a small and simple circuit?

7th October 2006, 02:23 PM	#3
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Whatz your o/p current ? Want to replace PP3? __________________ SivanandBalan

7th October 2006, 02:50 PM	#5
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	http://www.maxim-ic.com/appnotes.cfm/an_pk/3425 http://www.prema.com/Design/dcdcconverter09v.html http://www.zetex.com/5.0/pdf/ze0300....l%20step-up%22 __________________ SivanandBalan

7th October 2006, 04:05 PM	#7
sivan_and diyAudio Member Join Date: Dec 2004 Location: Dxb / India	Even using discretes is possible...I remember a circuit published in EDN "Ideas for design".... __________________ SivanandBalan

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7th October 2006, 04:14 AM	#2
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	look at this national boost converter chip or similar http://www.national.com/pf//LM/LM2733.html It can handle about half an amp load if thats enough.

7th October 2006, 02:25 PM	#4
space-cake diyAudio Member Join Date: Apr 2006 Location: home	i actually need the best efficiency i can get between 6v and 9v from 2 aa batteries. a 9v battery would be used normally.

7th October 2006, 03:13 PM	#6
RussB diyAudio Member Join Date: Oct 2006	Maxim are good for these http://para.maxim-ic.com/cache/en/results/4631.html

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