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Dreamcast external power supply

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ZTylerDurden717:

--- Quote from: danny_galaga on January 06, 2024, 04:43:17 pm ---
😄

There is a sort of Moore's Law happening though. The old supply has a transformer and linear regulators. Linear regs work well, but they dump the excess power as heat, right in that little console. By mass, all the new parts including the external PSU is probably half the old, because the new PSU is using buck converter tech. Even if it all went back inside the console there would be less heat in there. They still produce SOME heat though, so it's nice it's not inside anymore.

It's not all beer and skittles though. Linear regulators might waste a lot of energy by turning it into heat, but they produce a very smooth voltage. On the other hand, a $2 power supply may just kill your electronics. Hence I was glad I had a Netgear (ie a 'name' brand) supply.

This guy compares cheapo USB chargers to name brand. Same tech. Quite an eye opener

https://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html?m=1

--- End quote ---

Thanks for that wealth of knowledge  :)

danny_galaga:

--- Quote from: Zebidee on January 07, 2024, 12:49:54 am ---I had a "Counterfeit iphone" (though there is no writing on it at all) charger melt on me a year or two ago. I took a photo (attached). I see your guy gave it a massive one-bolt rating :)

Bought about five of them years ago for cheap.

Anyway, I still have a couple that haven't melted or mysteriously vanished yet, and use them occasionally, but never near anything flammable, and check regularly. If getting a bit too warm, unplug.

EDIT: after reading the article fully, I might not use them at all anymore (safety).

--- End quote ---

Yeah, I would smash and bin.

https://www.straitstimes.com/asia/australianz/woman-dies-in-australia-using-cheap-usb-style-charger

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