12V Power Supply from 2xAA

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Here is an idea for using two AA batteries to get a 12V power supply.

Antoine

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LT1302 vs. LT1302-5
05/13/2016 at 14:57 • 0 comments

For my first try, the output was about 30V! Far more than the attended 12V.
It appears that I am not using a LT1302 but a LT1302-5 for which some R4 and R5 are internally mounted. So, if you are using a LT1302-5 too, remove R4 and use a 570k resistor for R5.
(There is an intern 315k resistor so 315k + 570k ≈ 866k.)