Atom 5V DC regulated power supplies

discussion of games, software, hardware & emulators relating to the Acorn Atom and Acorn System machines.
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Graeme Roberts
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Atom 5V DC regulated power supplies

Post by Graeme Roberts » Wed Mar 28, 2018 7:41 pm

All,

Curious to know which regulated 5V DC power supplies you're using to feed your Atoms, assuming you've made the conversion from 8V internal regulated to 5V external.

Attached are a couple of pictures of the PSU's I've used. The first is a variable voltage universal wall wart supplying 1500mA.
IMG_1448.JPG
While the second is the Cisco / Lite-On PE1170 which supplies 5V at 3000mA using a 5.5 x 2.1 mm jack.
IMG_1449.JPG
This particular PSU is common on eBay as it's used to power Virgin HD boxes but delivers enough juice to support a fully loaded Atom.
https://www.ebay.co.uk/sch/i.html?_from ... 0&_sacat=0

Interested to know what you use to power your machine.

Graeme.

crj
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Re: Atom 5V DC regulated power supplies

Post by crj » Wed Mar 28, 2018 7:50 pm

Those wall warts with the twisty-screwdrivery thing for varying the voltage say they're regulated, but I'm pretty skeptical!

Graeme Roberts
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Re: Atom 5V DC regulated power supplies

Post by Graeme Roberts » Wed Mar 28, 2018 7:59 pm

Hi,

It read 4.93V on my multi meter at the tip, so I decided to give it a go :wink:

The Cisco PSU is slightly 'hotter' at 5.35V, but again powers the Atom with no problems.

Graeme.

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oss003
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Re: Atom 5V DC regulated power supplies

Post by oss003 » Wed Mar 28, 2018 8:03 pm

I'm using an USB 5V 2A power supply.
With all these modern addons, the power consumption is a lot lower than the original Atom with the 2114's.

Greetings
Kees

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