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echo: rberrypi
to: ALL
from: JOHN ALDRIDGE
date: 2021-01-17 17:52:00
subject: Re: Battery Powered Proje

In article , tnp@invalid.invalid says...
>
> On 16/01/2021 20:09, David Higton wrote:
> > Using an inductor in a conventional step-down switching regulator is
> > much more efficient, and of course requires the inductor to store
> > energy.
> >
>
> No, it doesn't have to store ALL the energy - like it does in a step up
>
> And if you don't mind massive ripple, it isn't needed *at all*.
> Consider a 6V battery deeding a 3V lamp. Simply chop the 6V on a 50%
> duty cycle and there you are. No choke needed at all.

25%?

John

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