100v+ dc to ground = +100 volts
100v- dc to ground =-100 volts.
What happens if these 2 touch???
Is this done to basically have 2 100v DC power supplies available?
Yes the easy way to go is after mkt LEDs and shitcan the high voltage circuits altogether.
Just curious how these voltages are used in the displays.
The displays need high voltage between 160-220 volts. Bally chose to go 180. Williams is getting a 200 volt range the displays themselves see the 200 volts as the -100 acts as ground reference.
Quoted from pevo:What happens if these 2 touch???
Something's gotta give. Same thing as if you touch both wires of a power outlet together. A spark, and something blows up.
But as Slochar says, if you need 200v between two wires, a +100 volt supply 'measured to ground', and a -100v 'measured to ground' can be used... because the difference in voltage between those two wires is 200v.
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