> >Yes. I'd have chosen a non-Schottky, fast recovery diode.
>
> I'm kind of confused; Isn't a Schottky diode a fast recovery diode?

Yes

> Could you give an example as to what diodes you would have used
> for this ?

Common types would be UF400x, UF540x. I also use the BYx ultra-
fast in small SMPS. There are many varieties of eg BYV, BYW

For reference

1N540x, Standard Recovery > 500ns

http://parts.digikey.com/1/parts/412455-diode-standard-3a-100v-do-201ad-1n5=
401-e3-54.html

UF400x, Reverse recovery time 50ns/75ns

www.fairchildsemi.com/ds/UF%2FUF4007.pdf

UF540x, Reverse recovery time 50ns/75ns

www.ygchina.com/sdygpdf/zxejg/uf/UF5400THRUUF5408.pdf

BYV28, Reverse recovery time 50ns max

www.vishay.com/docs/86043/86043.pdf

Which you choose depends on specific requirements especially re
amperage. A Schottky is perfectly acceptable, but I suspect that it
is more applicable to protect FETs rather than BJTs, due to its low
Vf rather than speed

As I mentioned though, IANA diode expert

Joe=20

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