last highlighted date: 2023-06-21
Highlights
- The core has a maximum flux density that is set by the material properties of that core, not by an air gap. If a core has a maximum flux density of say 1.7T then it saturates at 1.7T no matter how large of an air gap that may be within it.
- Tags: inductors
- Note: maximum flux density vs air gap
- This is often why some may think it increases the flux density of a core because, after all, you can put much more current into this gapped inductor than without the gap and not saturate the core. In fact though, this greater current is required to achieve the same flux density as without the gap.
- Tags: inductors
- Note: air gap= same flux density with higher current