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Post by brucew268 on Dec 15, 2021 10:25:41 GMT
The few power supplies I've built and/or modified, the common has been floating rather than earthed to the chassis, even on the external LPS. I've read some advocating earthed and others advocating floating. However, all of the panel mount DC power sockets I find on Mouser or RSOnline have bare metal connections to the chassis. I got a cheap floating one off Ebay but...
Can you recommend a good source for a floating style DC socket?
(Wasn't sure where to post this.)
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Post by firebottle on Dec 15, 2021 11:03:16 GMT
Switchelectronics.co.uk do a compact isolated socket, DC-022B
Actionhardware.co.uk do a larger one, the DC-009B
I have used both before but I think the DC-009B is better quality.
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Post by brucew268 on Dec 15, 2021 14:13:34 GMT
Switchelectronics.co.uk do a compact isolated socket, DC-022B Actionhardware.co.uk do a larger one, the DC-009B I have used both before but I think the DC-009B is better quality. Thank you, Alan. the first one looks like the one I use now. The second one handles better current (30V @1a), though if I do a HC power supply with 18V @3.5A that would exceed the rating and I suppose I'd have to use a standard earthed socket that handles 5A. |
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Post by firebottle on Dec 15, 2021 15:25:33 GMT
I'm not convinced you would as I have seen these types of connector on things that take rather more than 1A, particularly laptops.
Providing the socket and mating plug feel tight I don't think there is too much of a problem.
Does you load really take 3.5A or is that the theoretical maximum?
Most items I have actually measured in operation seem to take around half the stated rating.
YMMV
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Post by brucew268 on Dec 15, 2021 16:01:43 GMT
Yes my NUC only peaks at 1.1A during boot up, though haven't yet tried things Euphony with Youtube or Qobuz playing through it to see the maximum in use. The SMPS supplied is 3.42A.
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