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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: Need an overview to replace fixed voltage reg with adjustable voltage reg, posted by Cleet Torres on March 19, 2014 at 13:41:37:
Here you go man. No spreadsheets necessary!
The thing you gotta watch with that 100ohm you have is power. At the kind of current that will flow with 100 ohms as R1 will require a (15-1.25)^2/100 = 1.89 + margin W of resistor. A bit over the top really.
Probably makes more sense to use the 100 ohm for the r2 spot.
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Follow Ups
- RE: Need an overview to replace fixed voltage reg with adjustable voltage reg, - Ugly 19:03:35 03/19/14 (3)
- RE: Need an overview to replace fixed voltage reg with adjustable voltage reg, - Cleet Torres 20:46:20 03/19/14 (2)
- RE: Need an overview to replace fixed voltage reg with adjustable voltage reg, - Ugly 21:34:26 03/19/14 (0)
- RE: Need an overview to replace fixed voltage reg with adjustable voltage reg, - Ugly 21:13:44 03/19/14 (0)
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