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Comment by jacknews | Hacker News Reader

Good job. Basically anything up to 100w, unless it has some other niche requirement (waterproof, etc) should be mandated USB C, IMHO.

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That's basically the EU's requirement. Mobile phones get all the coverage, but the requirement covers mobile phones, tablets, digital cameras, headphones and headsets, handheld videogame consoles, portable speakers, e-readers, keyboards, mice, portable navigation systems, earbuds and laptops; as long as they are rechargeable via a wired cable that delivers up to 100w.

The specific law covers electronic devices with a built in radio and battery.

USB-C goes to 240W these days.

But imagine the size of that power brick.

I believe 240W charging uses 50V@±5A.

Looking at a 240W power adapter (https://www.slimq.uk/products/240w-charger-1) the whole thing doesn't seem that much bigger than a regular old laptop charger. Modern GaN chargers are quite compact for the punch they pack.

They don't make it clear but it seems like that only supports 240 watt over the barrel plug.

If such a high charging power level is needed anyway, does requiring USB-C charging make the power brick any larger?

I'm concerned about how much regulations we are introducing

Indeed, on the other hand this should be an opportunity to dispense with a whole load of regulations related to powering small devices, and just replace it all with "USB C".

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