Wall Sockets with USB C

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https://www.screwfix.com/p/british-...xOlv-1lobM5tN07JNS4aAlBpEALw_wcB&gclsrc=aw.ds

The problem with these is that the usb c outputs a maximum of 15 watt and the knightsbridge version outputs a max on 20 watts. I need about 25 watts for the Samsung S10 for the fast charge.
This is a question of protocols controlling voltage and current. Any fast charge over about 10W is likely to be using 9V fast charge.

Wall sockets will most likely be simple 5V outputs with a very high current rating. Which isn't how phones tend to do fast charge.

In the same way as they're unlikely to charge 19V PD (power delivery) protocol devices. e.g. laptops like the Macbook Pro.
 
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Got four of these from Screwfix a few weeks ago, https://www.screwfix.com/p/lap-13a-...arger-white-with-colour-matched-inserts/728fv. Only fitted them earlier this week and they work fine and match the other LAP sockets in my study. Not tested with both [usb] sockets under load, hopefully will be up to the job of powering a pi 4 when I get on.

I’ve been considering powering a rpi via a socket with usb. Are they rated for continuous power? I’m concerned they’ll get hot due to the zero airflow around the transformer. Can’t find any official info on the specs tho.
 
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I’ve been considering powering a rpi via a socket with usb. Are they rated for continuous power? I’m concerned they’ll get hot due to the zero airflow around the transformer. Can’t find any official info on the specs tho.
I'm planning on doing the same but not got around to it yet. Have an rpi2 or 3 running from it at the moment, not checked for any heat issues.
 
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any update on this?

there are a half dozen double sockets in the house i'd love to replace with combo-USB-C sockets, but not doing it until i can get 65w Power Delivery.
 
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any update on this?

there are a half dozen double sockets in the house i'd love to replace with combo-USB-C sockets, but not doing it until i can get 65w Power Delivery.
I don't know if I'd hold my breath for PD in a wall plate TBH. It's bound to be a larger bit of citcuitry due to higher voltages and currents.
 
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I don't know if I'd hold my breath for PD in a wall plate TBH. It's bound to be a larger bit of citcuitry due to higher voltages and currents.

I think you'll just need deeper back boxes. You can get 47mm double gangs which I reckon should easily accomodate it, given the surface area. I do wonder if the heat generated could be a constraint though?
 
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there is a US (?) format wall-socket i've seen for sale for the last 8 months.

it has two PD sockets, and touts its 'gallium-nitride' circuitry as something that permits high efficiency.
 
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there is a US (?) format wall-socket i've seen for sale for the last 8 months.

it has two PD sockets, and touts its 'gallium-nitride' circuitry as something that permits high efficiency.

Got a link mate? I'd be very dubious about anything that doesn't adhere to UK standards. Switchmode supplies often have a very wide input voltage range, so the USB side may be fine, the sockets themselves could be a different matter.
 
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oh, the socket itself is of no interest as it supports yank format plugs, i only mention it as the only true USB PD socket I have found on the market.

https://www.amazon.com/Leviton-T5635-W-Delivery-Charger-Tamper-Resistant/dp/B07PTWG5DV

Silly me, of course. As I suspected it makes use of depth and fills pretty much the whole cavity. The two part nature of US socket systems may help it vent better? At least it looks like the design tries to dump some heat out the front.
 
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don't bother. USB standards keep evolving. It'll be out of date in no time. We got our place wired last year and they tried to give us 2x2A usb-A sockets with the plugs. I told them not to bother as they'd need replacing before too long. I'd rather have an adaptor for whatever my phone is at any given time. Plus you can't depower USB sockets, they always use trickle current to detect if something is plugged in, which just seems wasteful to me.
 
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don't bother. USB standards keep evolving. It'll be out of date in no time. We got our place wired last year and they tried to give us 2x2A usb-A sockets with the plugs. I told them not to bother as they'd need replacing before too long. I'd rather have an adaptor for whatever my phone is at any given time. Plus you can't depower USB sockets, they always use trickle current to detect if something is plugged in, which just seems wasteful to me.

Yea I completely agree.

Apparently USB-C PD was at one point "the future" but it seems many phones has gone down the higher voltage/lower amp QC type protocols which don't require the wider cables etc.

But broader than this charging protocols have become a bit of a minefield. It's literally not worth the hassle over just plugging whatever type adapter your device comes with into a regular plug socket.
 
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don't bother. USB standards keep evolving. It'll be out of date in no time. We got our place wired last year and they tried to give us 2x2A usb-A sockets with the plugs. I told them not to bother as they'd need replacing before too long. I'd rather have an adaptor for whatever my phone is at any given time. Plus you can't depower USB sockets, they always use trickle current to detect if something is plugged in, which just seems wasteful to me.
This.

Such a bonkers waste of money to build a standard that changes constantly into a core part of your house infra.
 
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This.

Such a bonkers waste of money to build a standard that changes constantly into a core part of your house infra.

That's a bit extreme. USB A connectors have been around for well over 20 years and were used through USB1, USB2 and now USB3. Whilst the majority of new devices are built with the USB C connector, it'll likely still take to the end of this decade before the USB A connector has vanished from most homes.

I don't believe they've even come up with a next gen connector (no reason to?) so USB C connectors are likely to be around for the next 20-30 years i'd bet.

The availability and cost is also significantly better than when the OP made this thread, you can find sockets around the £10-15 mark which is hardly a waste of money if they can support the USB C connector for the next 20+ years.

Also the original comment about power draw, the ones i've got the USB circuits have a draw of 75mW, which i work out to cost about 0.09p a year in running costs. If that's a concern then i'd urge them to not look at the running costs of some of their kitchen appliances.
 
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That's a bit extreme. USB A connectors have been around for well over 20 years and were used through USB1, USB2 and now USB3. Whilst the majority of new devices are built with the USB C connector, it'll likely still take to the end of this decade before the USB A connector has vanished from most homes.

I don't believe they've even come up with a next gen connector (no reason to?) so USB C connectors are likely to be around for the next 20-30 years i'd bet.

The availability and cost is also significantly better than when the OP made this thread, you can find sockets around the £10-15 mark which is hardly a waste of money if they can support the USB C connector for the next 20+ years.

Also the original comment about power draw, the ones i've got the USB circuits have a draw of 75mW, which i work out to cost about 0.09p a year in running costs. If that's a concern then i'd urge them to not look at the running costs of some of their kitchen appliances.
The physical connector is only 1 very small part of the equation, as I am sure you are aware.

Here is the list of power related spec changes (the relevant bit for the topic at hand):

Release name Release date Max. power Note
USB Battery Charging Rev. 1.0 2007-03-08 5 V, ? A
USB Battery Charging Rev. 1.1 2009-04-15 5 V, 1.8 A Page 28, Table 5–2, but with limitation on paragraph 3.5. In ordinary USB 2.0's standard-A port, 1.5A only.[46]
USB Battery Charging Rev. 1.2 2010-12-07 5 V, 5 A [47]
USB Power Delivery Rev. 1.0 (V. 1.0) 2012-07-05 20 V, 5 A Using FSK protocol over bus power (VBUS)
USB Power Delivery Rev. 1.0 (V. 1.3) 2014-03-11 20 V, 5 A
USB Type-C Rev. 1.0 2014-08-11 5 V, 3 A New connector and cable specification
USB Power Delivery Rev. 2.0 (V. 1.0) 2014-08-11 20 V, 5 A Using BMC protocol over communication channel (CC) on USB-C cables.
USB Type-C Rev. 1.1 2015-04-03 5 V, 3 A
USB Power Delivery Rev. 2.0 (V. 1.1) 2015-05-07 20 V, 5 A
USB Type-C Rev. 1.2 2016-03-25 5 V, 3 A
USB Power Delivery Rev. 2.0 (V. 1.2) 2016-03-25 20 V, 5 A
USB Power Delivery Rev. 2.0 (V. 1.3) 2017-01-12 20 V, 5 A
USB Power Delivery Rev. 3.0 (V. 1.1) 2017-01-12 20 V, 5 A
USB Type-C Rev. 1.3 2017-07-14 5 V, 3 A
USB Power Delivery Rev. 3.0 (V. 1.2) 2018-06-21 20 V, 5 A
USB Type-C Rev. 1.4 2019-03-29 5 V, 3 A
USB Type-C Rev. 2.0 2019-08-29 5 V, 3 A Enabling USB4 over USB Type-C connectors and cables.
USB Power Delivery Rev. 3.0 (V. 2.0) 2019-08-29 20 V, 5 A [48]
USB Power Delivery Rev. 3.1 (V. 1.0) 2021-05-24 48 V, 5 A [49]
USB Type-C Rev. 2.1 2021-05-25 5 V, 3 A [50]





And then within the standards we have additional technologies like QuickCharge, which is an additional controller within the charger:



Technology Voltage Maximum New features Release date Notes
Current
Power[a]
Quick Charge 1.0 Up to 6.3 V[13] 2 A 10 W
  • AICL (Automatic Input Current Limit)
  • APSD (Automatic Power Source Detection)
2013 Snapdragon 215, 600[14][15]
Quick Charge 2.0
  • Class A: 5 V, 9 V, 12 V
  • Class B: 5 V, 9 V, 12 V, 20 V[16]
1.67 A, 2 A, or 3 A 18 W (9 V × 2 A)[17]https://en.wikipedia.org/wiki/Quick_Charge#cite_note-19
  • HVDCP (High Voltage Dedicated Charging Port)
  • Dual Charge (optional)
2014[c] Snapdragon 200, 208, 210, 212, 400, 410, 412, 415, 425, 610, 615, 616, 800, 801, 805, 808, 810[19]
Quick Charge 3.0 3.6–22 V[20] in 0.2 V increments.[16] 2.6 A, or 4.6 A[20] 36 W (12 V × 3 A)
  • HVDCP+
  • Dual Charge+ (optional)
  • INOV 1.0 & 2.0
  • Battery Saver Technologies
2016 Snapdragon 427, 430, 435, 450, 617, 620, 625, 626, 632, 650, 652, 653, 665, 820, 821[19]
Quick Charge 4
  • 3.6–20 V in 20 mV increments via QC
  • 5 V, 9 V via USB PD[21]
  • 3–21 V in 20 mV increments[22] via USB PD 3.0 PPS (Programmable Power Supply)
  • 2.6 A, or 4.6 A via QC
  • 3 A via USB PD
  • 100 W (20 V × 5 A) via QC[17]
  • 27 W via USB PD
  • HVDCP++
  • Dual Charge++ (optional)
  • INOV 3.0
  • Battery Saver Technologies 2
  • USB PD compatible
2017 Snapdragon 630, 636, 660, 710,[23][24] 835[25][26]
Quick Charge 4+
  • Dual Charge++ (mandatory)
  • Intelligent Thermal Balancing
  • Advanced Safety Features
Snapdragon 670, 675, 720G, 712, 730, 730G, 845, 855, 865[27][28]
Quick Charge 5 >100 W
  • >100 W charging power
  • 100% in 15 minutes
  • Better thermal management (not more than 40 °C)
  • Dual Charge
2020 Snapdragon 865, 865+, 870, 888


And this is ignoring the various varieties of PD that exist (and desperately need to be upgraded to enable quick charging for laptops).
 
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