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Mains socket with USB built in

Discussion in 'Electrics UK' started by KennyPowers, 21 Oct 2017.

  1. JohnW2

    JohnW2

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    I'm sure that's true. Of course, the ones that are currently available (and like I have) were not available as early as you have been talking about, since that was decades before anyone had even dreamed of BS1362 fuses!
    That's obviously true, but individual experiences vary. For example, my current mobile phone and tablet are the first I've had which have used USB charging (rather than a wallwart).
    It would be nice to think so, but manufacturers of mass-market products have the ability (which they sometimes exercise) to effectively 'force' changes on consumers/users, even if the existence of a 'clear advantage' (other than to those selling the 'new technology) is debatable! Maybe 'non-contact' (no connectors at all) charging will start showing its face?

    Kind Regards, John
     
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  3. ericmark

    ericmark

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    I have some with 2 USB outlets and some with 4 USB outlets, all seem to be paired as far as max current goes, so 4 outlet = 2 x 2.1 amp although marked at 4.2 amp you can't get that from one socket, others are marked 3.1 amp per pair. However the output also depends on the leads used, the Samsung own lead charges a lot faster than a pound world lead both from the same USB outlet. Think I have 6 in mums house and one in caravan, and one at home that will change when we return home.

    The main advantage is items are not unplugged I would find before USB sockets the main central heating hub unplugged so some one could charge their phone now there are enough outlets without people doing that.

    I would be interested to see if any device actually takes the full 3.1 amp from a socket? At 1650 mAh at 3.1 amp it would take just over half an hour to charge from flat, never seen a phone charge that fast so suspect they don't use the full 3.1 amp even at 2.1 amp that's 50 minutes not even seen one half charge in an hour so in real terms does not seem to matter if rated 3.1 or 2.1 amp they in real terms take same time to charge phone as in the main it is the lead which limits the charge.
     
  4. DetlefSchmitz

    DetlefSchmitz

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    Out of interest...
    The IEC and Europe both created a requirement that all new phones should charge via USB in order to reduce the movement to landfill of millions of proprietary chargers. This seems to have been very successful.
    The industry is moving towards a new USB connector (Type-C) together with PD (Power Delivery) which offers up to 100W on a smaller flippable connector. It is expected that this connector will totally replace Type-A and Type-B, and indeed some major vendors are now offering only Type-C USB.
    The IEC have recently taken the unusual step of publishing (at a fee) the already freely available USB-IF Power Delivery Spec, which requires type-C connectors for its delivery, so we can anticipate that charging phones (and other things) will soon use the Type-C connector as the result of European law.
     
  5. JohnD

    JohnD

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    Hurrah! What a wonderful thing international co-operation can be!
     
  6. mattylad

    mattylad

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    I have one of these in my youngest's bedroom (21) he uses it to charge his phone while he sleeps all day... :)
    Seems to work well.

    Bernard, can I ask what PCB CAD system it is you use with that dongle?
     
  7. bernardgreen

    bernardgreen

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    Zuken-Redac Cadstar Release 7 Schematics and PCB
     
  8. KennyPowers

    KennyPowers

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    Looking at the reviews on Screwfix, it seems to suggest you need quite a deep back box (to house the transformer I assume)

    I've never had to change a back box before, are they all pretty much the same size, apart from the depth?

    As the transformer is built into the socket, I guess it is unfused too.
     
  9. JohnW2

    JohnW2

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    Yes, more-or-less identical - as they have to be since accessories are all the same size.
    If they are of a reputable make, one would hope that they would have some internal protection ('fusing'), in case a fault results in excessive current, but it would presumably not be a 'replaceable' fuse.

    Kind Regards, John
     
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  11. KennyPowers

    KennyPowers

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    Just took off the front socket bit, there is a 25mm deep metal back box. It looks like it is right up against breeze block, so swapping with a 35mm one would not be a simple straight swap.
     
  12. ban-all-sheds

    ban-all-sheds

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  13. JohnW2

    JohnW2

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    Quite. That point has already made, and presumably means that it won't be all that long before these "holes in sockets" become increasingly less useful unless one is prepared to mess about with USB-C adaptors or adaptor cables.

    Kind Regards, John
     
  14. KennyPowers

    KennyPowers

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    I think it will still be a good while yet before the USB port is retired. They might upgrade the data rate of it again, but the power pins should stay the same for backward compatibility.

    If a USB socket is £20. and lasts say 2 or 3 years before the technology is old hat, than that's good enough for me. I wouldn't do every socket in the house though.

    It seems I would have to drill/chip some wall away to accommodate the deeper back box, so I might put this project on hold for a bit...
     
  15. JohnW2

    JohnW2

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    As I understand it, it's far from as simple as that. For a start, USB-C connectors are not (physically or electrically) compatible with the A/B ones we currently use - and they use 'intelligent leads' (necessary because the connectors are reversible, like the iPhone 'Lightning' connector). So, as I said, adapters or adapter cables will be necessary to use USB-C devices with current USB sockets.
    If that's how you feel, then that's obviously fine, since I'm sure they will have plenty of use for at least 2-3 years!

    Kind Regards, John
     
  16. Iggifer

    Iggifer

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    BG make USB sockets which fit a 25mm knockout box. They’re not even really a squeeze. They’re no MK or Hager but a ton better than a 99p shop adapter.

    Alternatively the likes of Schneider make a 10/16mm spacer shelf so it spaces the socket off the wall, but also adds a lip at the top so you can put your device on the shelf to charge
     
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  17. Iggifer

    Iggifer

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    Tell a lie, the shelf is not a spacer, but they do make a spacer and the shelf you could use in tandem. Everything I’ve mentioned is available from Screwfix
     
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