I'm wondering if there is anyone out there with a definitive answer to why and/or what standard would call out the usage of the different voltage sources. There are Bars, Arrows, Dots, Waves, etc. I have in the past defined this, but I'm wondering if there are actual standards that also define it.
What I've used in the past is:
- Wave: AC power source
- Bar: DC Power Source (regulated)
- Circle: DC Power source (unregulated)
- Arrow: no idea...
If anyone has any reference to something more concrete, I would love to hear it (and bonus if there's actually reasoning to why we have so many available).
Update: Picture added.