Re:Pump up the charge: Getting -5V from a 5V power supply
by 0134340 on Monday October 11, 2021 @05:27AM
(#28826419)
Interesting. I never cared to learn how we get negative voltages from power supplies but turns out it's all just a big pump and dump scheme.
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Re:Pump up the charge: Getting -5V from a 5V power supply
by jacquesm on Monday October 11, 2021 @09:38AM
(#28828169)
Only for very small currents. For larger currents you use a proper DC-DC converter; another stage on your switched supply or more windings on your transformer if you're still in the Analog Age.