Linear power supply
#6
(2017-08-31, 01:23)JupiterJoe Wrote: At least you aren't under power, but I don't know if over is good either... I wonder if it makes any difference?

I found that the USB voltage can't be adjusted on the unit I got, but there's another DC output that can be. I tested that one, and it's 5 volts on the nose. I just need to get an adapter for the plug that will connect to a USB plug. (Already have one on order) 

What kind of power supply are you using?

This will handle all the required stuff....
https://www.powerstream.com/AC-1898.htm
Many of us use this little jewel... you just need to hardwire a mini-usb connector to it,
since it doesn't come with one...,. set it for 5 volts, tape down that selection switch, and rock on...
$15.25 plus shipping.... I've got a house full of 'em.
supplies plenty of current, regardless of the voltage you 'signal' page displays... works fine.

Overvoltage ain't good... down to about 4.25 should work, but I wouldn't run mine that low!!!! Not for long!
don't let it go over about 5.25....If I'm below about an indicated signals page voltage of 4.65-4.75 something is likely amiss... not enough current from wall wart, or at the margin, for example.  if you've got a good, current rated supply, it should regulate at source fine.
See the specs on that 1898.... the source input on my BLUE at 115V right now is showing 4.95 volts with DVM, signals page is indicating 4.55...   (i've a pre-release controller with piggy-back power supply mod board hung on... ).... My Red is on the button at 5.0 source, and 4.75 on signal page.
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Messages In This Thread
Linear power supply - by JupiterJoe - 2017-08-30, 18:24
RE: Linear power supply - by kriu - 2017-08-30, 19:49
RE: Linear power supply - by JupiterJoe - 2017-08-30, 20:47
RE: Linear power supply - by kriu - 2017-08-30, 21:26
RE: Linear power supply - by JupiterJoe - 2017-08-31, 01:23
RE: Linear power supply - by cutty - 2017-08-31, 02:57
RE: Linear power supply - by kriu - 2017-08-31, 08:35
RE: Linear power supply - by pasense - 2017-08-31, 09:22
RE: Linear power supply - by allsorts - 2017-09-11, 19:13
RE: Linear power supply - by pasense - 2017-09-11, 14:52
RE: Linear power supply - by kriu - 2017-09-11, 19:31
RE: Linear power supply - by allsorts - 2017-09-17, 19:05
RE: Linear power supply - by readbueno - 2017-09-18, 09:07
RE: Linear power supply - by allsorts - 2017-09-22, 23:14
RE: Linear power supply - by kriu - 2017-09-19, 20:43
RE: Linear power supply - by RichoAnd - 2017-09-19, 21:43
RE: Linear power supply - by pasense - 2017-11-07, 13:45
RE: Linear power supply - by readbueno - 2017-11-07, 14:25
RE: Linear power supply - by pasense - 2017-11-07, 14:50
RE: Linear power supply - by allsorts - 2017-11-07, 17:36
RE: Linear power supply - by AlliPlatt - 2020-04-20, 17:42

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