Connecting Grounds in PCB Design
Thought for 1 min 31 sec
Short answer:
- Yes. You don’t need to draw one big ground wire. Just place the Ground symbol wherever a node should be on GND; they are all the same GND net.
- If you want multiple, separate grounds (e.g., analog vs digital), create additional ground nets using a portal-with-ground-symbol for each secondary ground and use those where needed.
What Flux documentation says:
"In Flux, working with a single ground is very straightforward. Add a standard ground symbol to your schematic and simply wire it up. Flux will then take care creating a ground plane for you.
Working with multiple grounds is also straightforward in Flux, but simply requires adding a portal with a ground symbol for additional secondary grounds." Source
If you tell me whether you want a single GND or distinct grounds (AGND/DGND), I can help you set it up accordingly.
Well, this circuit is entirely analog, so I think that will simplify things. I don’t care how many ground symbols there are, just that the power supply and the rest of the circuit are visually connected via said grounds for aesthetic purposes.
Thought for 1 min 36 sec
Yes—use a single GND net and place as many ground symbols as you like for clarity. Every Ground symbol belongs to the same net, so the supply ground and the rest of the analog circuit are logically connected without drawing one long wire.
What Flux documentation says:
"In Flux, working with a single ground is very straightforward. Add a standard ground symbol to your schematic and simply wire it up. Flux will then take care creating a ground plane for you.
Working with multiple grounds is also straightforward in Flux, but simply requires adding a portal with a ground symbol for additional secondary grounds." Source
If you ever decide to show named connections instead of wires, you can also use Net Portal labels with the name “GND” for the same effect.
Use net portals
Single vs multiple grounds
Add secondary ground
Ground plane behavior
Schematic aesthetics
