[sdiy] Voltage vs current, was Low voltage synthesis?
btremblay at me.com
Wed Jan 19 14:43:32 CET 2022
As a software engineer I see voltage as “interface” and current as “implementation”.
Voltage measures what “should” be there. Current describes the electrons in motion. When you implement electronics you are concerned with manipulating currents. When you are all done with your breadboard, you buffer the outputs and inputs to make them work the way the “should” with voltages. Of course there are exceptions where it’s the voltage at the input of a semiconductor that matters, but once that semiconductor is in a network of components, it’s current that gets the voltage where you want it.
So being able to think 90% of the time in current is productive.
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