240W USB-C PD chargers are nearly here, says Framework CEO
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Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#2It seems Gallium Nitride are quite the revolution in power density for charging equipment
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#3Great! I'm going to need something like fpx or fabpide2 with a Lenovo connector and at least 135 watts so I can avoid buying more Lenovo charging bricks for the couch, bedroom, second desk, travelling...
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#4Waste heat seems like it would be a thing? Even at 95% efficiency (which is unrealistic), we're looking at a 12W heater.
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#5Waste heat seems like it would be a thing? Even at 95% efficiency (which is unrealistic), we're looking at a 12W heater.
240W chargers were a thing even before that, for gaming laptops. The only difference here is that it goes through USB-C PD, instead of a large-ish barrel jack, right? 95% efficiency probably refers to the adapter itself, where it shouldn't matter that much. Additionally, GaN is now a thing, so efficiency should be better than what it was 10 years ago.
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#6Waste heat seems like it would be a thing? Even at 95% efficiency (which is unrealistic), we're looking at a 12W heater.
It says in the article:
>> The company says it uses Weltrend WT6676F, ON Semi NCP1622, and JoulWatt JW1556 controllers, as well as GaN switching parts from both GaN Systems and Navitas “peaking at an amazing 93% efficiency” for this 180W adapter. Both those parts and Chicony’s assistance as a power supply manufacturer are obviously there for other companies to use as well.
So likely even less efficiency for the higher rating. I'm very interested to see how they're venting this heat passively.
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#7Is it possible for a (laptop + USB-C PD power charger) to support multiple charging rates?
My Lenovo Legion 5 has a 300W charger. Caveats: (a) I'm not sure if that's input power or output power; and (b) it's not a USB-C PD connector , but my question isn't specific to this laptop.
Airplane A/C power outlets aren't willing to deliver that much power. And even if I was willing to slow-charge the laptop on an airplane or with my car, the laptop isn't willing to cap the charge rate, so it's simply not an option.
So I'm wishing for some scheme that lets me slow-charge a laptop in those situations, even if it meant having two different A/C adapters.
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#8why was 240W picked as the upper limit for PD? Why does there even need to be an upper limit?
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#9Waste heat seems like it would be a thing? Even at 95% efficiency (which is unrealistic), we're looking at a 12W heater.
It says in the article: >> The company says it uses Weltrend WT6676F, ON Semi NCP1622, and JoulWatt JW1556 controllers, as well as GaN switching parts from both GaN Systems and Navitas “peaking at an amazing 93% efficiency” for this 180W adapter. Both those parts and Chicony’s assistance as a power supply manufacturer are obviously there for other companies to use as well. So likely even less efficiency for the highe…
Should pipe it off to be a coffee cup heater.
Re: 240W USB-C PD chargers are nearly here, says Framework CEO
#10It seems Gallium Nitride are quite the revolution in power density for charging equipment
I now own two Anker GaN chargers. They're awesome. I carry this single little 70 watt brick, 1x usb-a 2x usb-c ports. Charges everything. Even my macbook pro, albeit at a slower rate.