3 ms·
DC to AC converters in common inverters (where your battery power gets turned into AC wall current) are usually digital (mosfets usually) and unless they're run
by tgtweak 8y ago
DC to AC converters in common inverters (where your battery power gets turned into AC wall current) are usually digital (mosfets usually) and unless they're running at 96khz+, which is probably not the case even with "pure sine wave" inverters¹, they could also introduce some noise. Additionally, if you were charging the batteries at the same time, that charger could be carrying some noise into the DC current.
Visible stepping on a "pure sine wave" inverter:
¹ https://m.youtube.com/watch?v=7-Issb89NhQ&t=7m20s https://m.youtube.com/watch?v=7-Issb89NhQ&t=7m20s
- ip26 8y agoSo many things these days just convert AC back to DC though. (Maybe not vintage audio equipment though)
- tgtweak 8y agoTragically, an amplifier, especially the analog ones, are just very accurate current inverters:)
- camtarn 8y agoI'd love to see somebody sell an old-fashioned motor-generator set for generating absolutely pure sine-wave current from a noisy input. Give it a really heavy flywheel and maybe some complicated flexible interconnect between motor and generator, to remove any effects of the input power. Or, even better, have the motor crank up some sort of mechanical/hydraulic/pneumatic power storage, then switch off to let the generator run for an hour or so.
- tgtweak 8y agoYeah I mentioned it in my other comment, spinning flywheel generator with a motor on one side and generator on the other would work well here too filter out any noise. Some datacenters have these attached to their generators to avoid the need for huge battery banks. They can actually support several megawatts. They spin constantly at the motor's rpm with a clutch that engaged when the input power is lost. This instantly jump starts the generator, at the grid's phase, and prevents