The inductor would store and return most of the energy. Your control circuit would only supply the rest - adding flexibility and taking out any temperature drifts.
Farnell stocks "power chokes" in that ball park
offers 68mH - you'd need three in series - and can take 600mA. They are intended to be used "current compensated" for mains filtering, so it's not a slam dunk, but might be worth thinking about.