I have created a complete (as complete as the manufacturer's data provides) ferrite bead model. That includes:
- RLC parameters, losses over the plotted frequency range
- Core saturation
- Compatible with AC and transient analyses
- Stable, continuous, analytical functions used to extend sparse data to all operating conditions (making reasonable assumptions where extrapolating)
So what, you ask? Sure, saturating models have been around for a long time. So have ferrite bead models.
Well, I've never seen the two combined, and I certainly haven't seen one with this level of detail.
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