a lot of power supplies have a lot of "noise" in the what is supposed to be sine-wave signal... UPS devices usually have fancy filters that soak up the noise and their output is highly sinusoidal, with very little higher frequency harmonics
they call this "dirty power" and it can destroy delicate electronics
though, a lot of the AC->DC converters in computers and chargers and such, the better quality ones, anyway, have meaty capacitors and FETs and whatnot to deliver a stable voltage... the dirty electricity can have negative health effects too if there is a lot of frequencies in ranges that disrupt our electromagnetic sensing organs (almost all organisms, even bacteria, are influenced by direction and oscillations in electromagnetic fields around them)
the effect can range from minor to debilitating but it can also be very bad for electrical devices
also some dodgy crappy china electronics like in washing machines and such can emit emf back into the house wiring that make the problem worse
mleku
npub1fj…mleku
2025-05-30 18:35:01
in reply to nevent1q…mcye
Author Public Key
npub1fjqqy4a93z5zsjwsfxqhc2764kvykfdyttvldkkkdera8dr78vhsmmlekuPublished at
2025-05-30 18:35:01Event JSON
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"content": "a lot of power supplies have a lot of \"noise\" in the what is supposed to be sine-wave signal... UPS devices usually have fancy filters that soak up the noise and their output is highly sinusoidal, with very little higher frequency harmonics\n\nthey call this \"dirty power\" and it can destroy delicate electronics\n\nthough, a lot of the AC-\u003eDC converters in computers and chargers and such, the better quality ones, anyway, have meaty capacitors and FETs and whatnot to deliver a stable voltage... the dirty electricity can have negative health effects too if there is a lot of frequencies in ranges that disrupt our electromagnetic sensing organs (almost all organisms, even bacteria, are influenced by direction and oscillations in electromagnetic fields around them)\n\nthe effect can range from minor to debilitating but it can also be very bad for electrical devices\n\nalso some dodgy crappy china electronics like in washing machines and such can emit emf back into the house wiring that make the problem worse",
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