Inductance must be around 27uH, 180uH will result in inability to produce full output swing at high frequencies, althogh a frequency response plot won't show substantial roll-off.
A simple but very good solution is to use micrometals toroids in -2 material. If you prefer ferrite, things become a bit more complex. A gap between the two core halves is required and it has to be sized for proper saturation current, but a too long gap will leak too much flux and result in unwanted heating of magnet wires near the gap.
The original UcD modules use RM ferrite cores with the gap in the inner leg and foil winding. How did you make your ferrite inductors?
A simple but very good solution is to use micrometals toroids in -2 material. If you prefer ferrite, things become a bit more complex. A gap between the two core halves is required and it has to be sized for proper saturation current, but a too long gap will leak too much flux and result in unwanted heating of magnet wires near the gap.
The original UcD modules use RM ferrite cores with the gap in the inner leg and foil winding. How did you make your ferrite inductors?
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