adamking · HackerTrans

الشهر الماضيdiscuss

Creatine is one of the few supplements I actually notice a difference if I quit taking. Happy to see it’s benefits extend to beyond performance in the gym.

adamking

قبل 4 أشهرdiscuss

> no significant skin effect at 400Hz -> use speaker wire, lol

now run that unshielded wire 50 meters past racks of GPUs and enjoy your EMI

> The 400Hz distribution industry is massive; the entire aerospace industry runs on it

nothing in that catalog is rated for 100kW–1MW rack loads at 800Vrms

> 3 phase @ 400Hz is x6 = 2.4kHz... Your PSU is now 14 diodes and a ceramic cap

you still need an inverter-based UPS upstream, which is the exact conversion stage DC eliminates

> large voltage/current DC breakers are.. gnarly, and expensive. DC does not like to stop flowing

SiC solid-state DC breakers are shipping today from every major vendor

> DC-DC converters are great, but you're not going to beat a transformer in efficiency or reliability

wide-bandgap converters are at 95%+ with no moving parts

adamking

قبل 4 أشهرdiscuss

Rich!= smart

adamking

قبل سنتينdiscuss

> Having to work in an office for $300k/year

More like $98k/year on average

adamking

قبل 3 سنواتdiscuss

My 2023 Chevy Bolt EUV does exactly this with SuperCruise, in layers. Look away from the road for a few seconds? Visible warning. Keep looking away? Audible warning. Still looking away? SuperCruise disables, slows the vehicle to a stop, and calls OnStar.

adamking

قبل 3 سنواتdiscuss

and no moving internal parts + mostly sealed from dust. I'll do the same with mine.

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