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Joined 1 year ago
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Cake day: June 7th, 2023

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  • jjagaimo@lemmy.cato196@lemmy.blahaj.zoneCan I have a rule?
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    19 days ago

    As if im going to be relying on source non-havers in an apocalypse. True apocalypse I’m dying because no way in hell I want to survive just to suffer and meet a grizzly death (e.g. from radiation, zombies, etc.). Something recoverable I’m fine, got my food, water and electricity sorted out. Also a backup copy of wikipedia :•)






  • Dimmers will typically use a triac which cuts up the sinusoidal waveform. It doesnt actually lower the amplitude per se, but it limits the fraction of the time the waveform is on. Kinda like this. This means that a lot of the time the led isnt gettingas much or any power. The average power will be lower, and if the LED driving circuitry isnt designed to compensate for this, the LED will flicker.

    Clarification on triacs: they get turned on a certain fraction of the way into the cycle. Triacs will stay on until the voltage across them is 0. Conveniently the zero-crossing of the AC wave (when the wall voltage crosses zero to start foing negative or from negative to positive) does just that.







  • jjagaimo@lemmy.cato196@lemmy.blahaj.zonerule
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    2 months ago

    Technicaly it is connected through the breaker so you could only supply as much to the rest of the house as that breaker can pass. Not ideal or the proper way of doing it though. Also the reason to disconnect from the grid is that you could start feeding downed power lines, and if line workers go out to work on the lines they can be electrocuted. Also, theres no telling when power will return. There should be a separete input for the generator and a transfer switch to switch between the generator and grid.