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kinabaloo · 07-08-2009, 01:27 AM

A kit that may be helpful for modders / experimenters.

Based on an LM317 voltage regulator.

LM317 - 3-Terminal Adjustable Regulator

Kit of parts with circuit board. Can be changed to output 4.4v or whatever by changing one or two resistors or adding a zener diode (see the LM317 datasheet).

Active Robots - Sparkfun Breadboard Power Supply - UK

Could be made adjustable over a desired output voltage range.

Suitable for mods with 2 batteries (6v+) or usb where you would prefer a lower voltage for your atomizer.

Laredo7mm · 07-08-2009, 01:41 AM

Nice find kinabaloo. Should work very well for experimentation given its large Vin range.

Too bad the LM317 has such a high voltage drop out. Someone should make one of these with an LDO (hint to TI).

kinabaloo · 07-08-2009, 01:45 AM

Quote:

Originally Posted by Laredo7mm

Nice find kinabaloo. Should work very well for experimentation given its large Vin range.

Too bad the LM317 has such a high voltage drop out. Someone should make one of these with an LDO (hint to TI).

There is this one LM1086 - 1.5A Low Dropout Positive Regulators

which i believe is compatible and has a lower dropout.

The unit is a little big for most mods, but could be a nice desktop experimenting unit.

Laredo7mm · 07-08-2009, 01:53 AM

Quote:

Originally Posted by kinabaloo

...The unit is a little big for most mods, but could be a nice desktop experimenting unit.

That's what I was thinking. Just plug it into just about any wall wart and away you go.

kinabaloo · 07-08-2009, 02:00 AM

Quote:

Originally Posted by Laredo7mm

That's what I was thinking. Just plug it into just about any wall wart and away you go.

Indeed, And it's so much easier to build with a circuit board.

Add a pot with carefully selected resistors that form the voltage selection and one has a 3.5v - 6v (say) supply.

kalc · 07-09-2009, 06:20 PM

Sorry , wrong thread!!

07-08-2009, 01:27 AM	#1
kinabaloo ECF Veteran Join Date: Mar 2009 Location: london uk / beijing china Posts: 3,306	Lower / adjustable voltage from USB or 2 batteries A kit that may be helpful for modders / experimenters. Based on an LM317 voltage regulator. LM317 - 3-Terminal Adjustable Regulator Kit of parts with circuit board. Can be changed to output 4.4v or whatever by changing one or two resistors or adding a zener diode (see the LM317 datasheet). Active Robots - Sparkfun Breadboard Power Supply - UK Could be made adjustable over a desired output voltage range. Suitable for mods with 2 batteries (6v+) or usb where you would prefer a lower voltage for your atomizer. __________________ Link: Vaping Buzzz : Article Base & FAQ ... New Design Last edited by kinabaloo; 07-08-2009 at 01:29 AM.*

07-09-2009, 06:20 PM	#6
kalc Full Member Join Date: Jun 2009 Location: Delhi, India Posts: 72	Sorry , wrong thread!! __________________ kallol Last edited by kalc; 07-09-2009 at 06:23 PM.

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07-08-2009, 01:41 AM	#2
Laredo7mm Senior Member Join Date: Mar 2009 Posts: 154	Nice find kinabaloo. Should work very well for experimentation given its large Vin range. Too bad the LM317 has such a high voltage drop out. Someone should make one of these with an LDO (hint to TI).