General > General Technical Chat
The EU is enforcing USB-C on portable devices
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madires:

--- Quote from: eugene on June 24, 2022, 06:46:00 pm ---Not everyone agrees with that ideology, but I honestly don't see how this particular situation of multiple charging ports is improved in more than a trivial way at the expense of a free market. I mean, I have thought hard about it, and read the first few pages of this thread to understand the viewpoints of others, but I honesty can't think of a significant real world advantage to the regulation.

--- End quote ---

Besides the goal to reduce e-junk there is a very practcal aspect for users:
  Bob: Oops, I left my charger at home. Can I borrow yours?
  Alice: Sure!
This wouldn't work without a standard charging port (unless both have the same device/brand). Or take my father for example. He loves to plug in the next best charger which has a matching plug. Ever tried to charge a three cell Li-Ion battery with 40V? IMHO, it would a good idea to also have a standard charging port with a protocol similar to USB PD for high power battery packs, like for power tools. Two standard chargers (one as spare or for a second battery) instead of 10 different chargers, some with the same connectors, would save money, save real estate on the bench, save ressources (production) and reduce e-junk.
KaneTW:
Looking forward to:
1. Increasing the BOM cost of my device if I draw more than 15W
2. Having to wait a year for USB-PD parts during this or the next supply shortage
3. Noncompliant USB-PD sinks that sink 5V/3A all the time without negotiation
4. Dealing with blown up ICs because USB-C ports are prone to shorting VBUS to data lines when removing them, and not everyone puts in port protection
5. Being forced to use USB-C ports in a portable rugged device (nb: didn't check if the standard applies to them) and getting dirt/liquid stuck in them

etc, etc.
PlainName:

--- Quote from: langwadt on June 25, 2022, 02:18:53 pm ---
--- Quote from: SilverSolder on June 25, 2022, 10:42:06 am ---
--- Quote from: dunkemhigh on June 24, 2022, 09:30:43 pm ---Duh! I'm thinking of the A  :palm:

There must be some reason though. Even fairly recent Garmins use the mini over micro.

--- End quote ---

I just got a brand new Garmin and was surprised to find Mini USB still alive and well....

--- End quote ---

I'm not sure "alive and well" is what it is, it is discouraged but still allowed by USB-IF

I suspect Garmin stick to it because there is a crapton of old holders out there that have a mini-B charging cable

--- End quote ---

Maybe, yes. But mini-B is a lot easier to plug in than micro-B. Sometimes I have to invert the micro-B just to show the damn device I'm doing it wrong and then put it back the right way to get it to go in. It's perverse. With mini-B they just slide in first time.

But the whole question of USB as sole power on satnavs and dashcams is a puzzle. Asking for 12V up the jacksie, that one. I don't think it's so they can be plugged into a PC as well because using the same connector for that it has to figure out if there's a PC or car connected. With a 12V input for the car and USB for the PC there's no problem.
SilverSolder:

--- Quote from: dunkemhigh on June 25, 2022, 05:10:24 pm ---[...] Sometimes I have to invert the micro-B just to show the damn device I'm doing it wrong and then put it back the right way to get it to go in. It's perverse. [...]

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Hahaha yes, I see the same behaviour.  It's as if you have to trick it into working. ..     pretty remarkable design, really, given its simplicity!  :D
tooki:

--- Quote from: dunkemhigh on June 25, 2022, 05:10:24 pm ---Maybe, yes. But mini-B is a lot easier to plug in than micro-B. Sometimes I have to invert the micro-B just to show the damn device I'm doing it wrong and then put it back the right way to get it to go in. It's perverse. With mini-B they just slide in first time.

--- End quote ---
Micro-B and standard A both have that issue. Even Intel, the inventor of USB, has made fun of that:  ;D





P.S. We can thank Apple for USB-C being reversible: they pushed for that feature at the USB-IF.
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