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Turn the lights off when you go to bed.
noise machine
No it’s not lol they still flicker out eyes just dont pick it up
It has a 60Hz electric waveform in, and it produces visible light, which is in part a ~500THz wave.
Do you think we will ever change our power grid to have a higher frequency so that our bulbs don’t flicker when we record things?
Good LED bulbs have a smoothing capacitor after the full bridge rectifier. This allows the LED to maintain most of its output during the low points in the cycle, resulting in minimal to no flicker when recording.
Alright, show me your eyebrows
He electrocuted himself
Implying there’s more than one
Peh chu chu peh chu chu peh monobrow wiggle
I loled
Buffer the input in a battery then use dc out from the battery to power your lights, no flickering. No need to reconfigure the entire grid and every device on it for niche applications.
Just rectify the AC, if the voltage isn’t too much.
You don’t need a buffer unless the power fluctuates.
Not a licensed electrician
High frequency is generally bad for transmission line losses, so getting power from A to B is better at lower frequency — DC is a great option here.
If we switched to DC, many things would still flicker though as they would presumably use switching power supplies, but those could be relatively high frequency like you said.
Interestingly, airplanes use 400Hz, as transmission over distance doesn’t matter, and transformers can be made much smaller/lighter.
Also if we switched to DC, you’d need costly dcdc transformers to step up the voltage for transmission and back down again for domestic usage
Aren’t switching mode power supplies smaller and more efficient than regular AC transformers anyway?
As far as I understand, a DCDC converter is less efficient and more expensive than an equivalent ACAC converter. I don’t know about switching power supplies, and whether that’s true or extendable to the transformer case, sorry.
Long distance point to point power transmission (like internationally) is often DC because transmission losses become more important.
For incandescent bulbs the power drop around the zero voltage cross doesn’t last long enough to extinguish the filament, since it’s basically just glowing from being heated. The only lights which actually do “flicker” under nominal conditions are old ballast driven florescent lights. Most modern LEDs rectify the AC and modern CFLs boost the line frequency to like 20kHz to prevent the arc from getting extinguished.
Modern CFLs use an arc? I thought they were cathode based, emitting UV from forcing mercury vapour to dance
