> Byron believes (with tongue firmly planted in cheek) that switching
> magnetics are a black hole for all knowledge and the source of all that i=
s evil
> in electronics design. Russell has countered:
>=20
> "Do NOT be afraid of an inductor based circuit. With off the shelf and of=
f the
> net circuits and advice from here you should have no excessibely major [t=
m]
> problems with the converter."
>=20
> So I'm here to put this hypothesis to the test. For my electric riding mo=
wer
> project I see two switching projects that would really be helpful.
> Both are based on the 48V 47Ahr Chevy Volt module that I bought to run th=
e
> mower.

Just revisiting this as I saw a pointer to this device on a Circuit Cellar =
email.

http://www.linear.com/product/LT8304

Looks like it could do the job (I haven't run through the required charging=
 rate etc. numbers though) and it has very simple magnetics and no opto.

Precede it with a PFC chip to keep the input voltage within its maximum and=
 all should be easy peasy.

Also check the 'Other people also viewed' links at bottom for similar (poss=
ibly better) devices.



--=20
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