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The EU is enforcing USB-C on portable devices

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Someone:

--- Quote from: Monkeh on June 09, 2022, 10:39:08 pm ---
--- Quote from: julian1 on June 09, 2022, 08:15:05 pm ---Does the enforcement apply to the USB-C PD (power delivery) negotiation protocol? Trying to remember from Dave's old video, it required a fairly complicated proprietary solution, and couldn't be done with just firmware + phy.

--- End quote ---


--- Quote ---2. Hand-held mobile phones, tablets, digital cameras, headphones, headsets, handheld
videogame consoles and portable speakers, in so far as they are capable of being
recharged via wired charging at voltages higher than 5 volts or currents higher than 3
amperes or powers higher than 15 watts, shall:
(a) incorporate the USB Power Delivery, as described in the standard EN IEC
62680-1-2:2021 ‘Universal serial bus interfaces for data and power - Part 1-2:
Common components - USB Power Delivery specification’;
(b) ensure that any additional charging protocol allows the full functionality of the
USB Power Delivery referred to in point (a).
--- End quote ---

--- End quote ---
Which leaves my worry that 5V x 3A with no PD negotiation will persist as the cheap/lowest common denominator that will become "standard".

Monkeh:

--- Quote from: Someone on June 09, 2022, 10:43:46 pm ---Which leaves my worry that 5V x 3A with no PD negotiation will persist as the cheap/lowest common denominator that will become "standard".

--- End quote ---

This is fine. This is specifically so dumber devices can charge without needing extra complexity - you do not need USB PD capability in a headset, for example.

Someone:

--- Quote from: Monkeh on June 09, 2022, 10:47:58 pm ---
--- Quote from: Someone on June 09, 2022, 10:43:46 pm ---Which leaves my worry that 5V x 3A with no PD negotiation will persist as the cheap/lowest common denominator that will become "standard".
--- End quote ---
This is fine. This is specifically so dumber devices can charge without needing extra complexity - you do not need USB PD capability in a headset, for example.
--- End quote ---
Yes, the devices do not need it, but without standardized negotiation for high current 5V charging there will still be compatibility issues between charging sources and devices... and the specific worry I keep bringing up:

if devices are the mandate, USB-C connection but the volume/cheap stuff can persist with 5V <3A dumb endpoints
that is not going to deliver reusable and convenient charge anything power adaptors (USB-C PD)

So the claimed  motivation to reuse adaptors isnt best served by this.

Berni:
Yep regular 5V non USB-PD will still be around for the simple cases.

It is not a bad thing either. The law is not about forcing cheep chargers to be more performant. There will always be cheap small low wattage chargers on the market because that's all that some people want or need. You bought a charger that is not physically capable of more performance, so this is what you get.

This is more about making the fast chargers interchangeable with each other. Right now your "Qualcomm Quick Charge 4" charger will not fast charge a Apple device or a device that supports "Huawei SuperCharge" or "Samsung Adaptive Fast Charging" or "OnePlus Wash Charge"all those fall back to the usual 5V at 2A or 3A. So you have a fast charge capable charger but it refuses to perform better than a normal slow charger because it doesn't understand what the phone wants it to do. USB-PD that comes with USB-C is what aims to solve this by standardizing on this one protocol. So your Samsung charger could fast charge a Huawei or iPhone or OnePlus

There ware attempts to standardize connectors on smartphones for years before the first iPhone was released. For example HTC (That was making WindowsMobile smartphones back when iOS or Android did not even exist yet) was putting miniUSB connectors on there devices (microUSB didn't exist yet either) and moved on to special 12 pin miniUSB connectors. These new 12 pin versions ware still compatible with the normal 5 pin miniUSB cables but had extra pins that are used to support things like Audio in/out, RS232 (Yes PDAs had those back then) etc.. But the rest of the industry was not impressed and stuck to there weird proprietary connectors.

tszaboo:

--- Quote from: Someone on June 09, 2022, 11:03:12 pm ---
--- Quote from: Monkeh on June 09, 2022, 10:47:58 pm ---
--- Quote from: Someone on June 09, 2022, 10:43:46 pm ---Which leaves my worry that 5V x 3A with no PD negotiation will persist as the cheap/lowest common denominator that will become "standard".
--- End quote ---
This is fine. This is specifically so dumber devices can charge without needing extra complexity - you do not need USB PD capability in a headset, for example.
--- End quote ---
Yes, the devices do not need it, but without standardized negotiation for high current 5V charging there will still be compatibility issues between charging sources and devices... and the specific worry I keep bringing up:

if devices are the mandate, USB-C connection but the volume/cheap stuff can persist with 5V <3A dumb endpoints
that is not going to deliver reusable and convenient charge anything power adaptors (USB-C PD)

So the claimed  motivation to reuse adaptors isnt best served by this.

--- End quote ---
For a type-c device, to have 5V available for you, the only necessary electronics is 2x 5.1KOhm resistors between the CC lines and ground. There are also Type C plugs available with only like 6 pins, that can be used for charging only.

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