Welcome to Synthiam!

The easiest way to program the most powerful robots. Use technologies by leading industry experts. ARC is a free-to-use robot programming software that makes servo automation, computer vision, autonomous navigation, and artificial intelligence easy.

Get Started
United Kingdom
Asked — Edited
Resolved Resolved by Dunning-Kruger!

Wall Wart Power

Hi there all,

My ez b is here. Yeah

Whilst testing I was just wondering if I could use a wall wart to power the ez b to save my batteries?

The one that I have in mind is

Input 100 -240V
50/60Hz0 15A
Output 7V 42A

Before I go and blow up my beloved ez b I thought I would check with my peers on the forum

Thanks guys and girls


ARC Pro

Upgrade to ARC Pro

Unleash your creativity with the power of easy robot programming using Synthiam ARC Pro

#1  
42amp output? Yikes!... It must be the size of a toaster!.... Maybe you mean 4.2amp? What was it's intended use?... If it is indeed a 7Vdc output it will be fine... the high Amps are irrelevant as the device draws what it needs... It's the other way round that would pose a problem (not enough amps)...

It's not a battery charger, right? Because that won't work...
United Kingdom
#3  
Thanks @Richard R its definitely 42A I got it from a car boot sale so not sure what its original purpose was.
@DJ Sures thanks for the link, but it didn't work?
United Kingdom
#4  
Oh dear I posted before marking as resolved :-)
United Kingdom
#5  
A 15A 230v load shouldn't be connected to a 13A outlet. Under full load conditions it'll be pulling over 3Kw and over the 13A limit for a socket outlet. I've seen sockets melt because of high loads (granted they were in a commercial kitchen), did it come with a 3 pin 13A plug top?
#6  
@Rich.... Jeez dude you catch everything. Seriously good point....In North America house wiring is generally rated at 15amp max....
United Kingdom
#7  
I work for an electricians so its part of one of my many jobs to catch these things. I just spent 3 months doing just that.
United Kingdom
#8  
Hi all,

this is a sealed plug and adapter (like you would find to charge a mobile phone), you have got me worried about using it now.

i will post a pick when i get home, to settle it :-)

thanks for the interest and discussion.
United Kingdom
#9  
You could always make up a small extension lead using 2.5mm 3 core flex and in effect change the moulded plug to a standard plugtop with a 13A fuse in it, that way the plug top fuse should blow before you get any problems.

It's likely to only pull a full load if your EZ-B and accessories are demanding a combined 42A anyway. When pulling less it should have less of a demand on the AC side.

The house wiring should be 2.5mm ring main backed up by a 32A MCB or RCD so the cable can take the 15A load and depending on the make of socket that may take 15A, MK rate theirs at 13A maximum (however I am sure they can be pushed as anything can, MK just wouldn't accept liability or blame)
Login to post a comment