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> Interesting read. As my voltage is so low, my take away from the
> article is that I should stick with a FET. Still, it's good to know a
> bit more about IGBTs.

They mention low voltage lighting, which I assumed to be halogens
and transformers rather than LEDs

Your LED load is quite large, compared with what most people
would experience, but it probably isn't quite enough to justify an
IGBT although I'm sure an IGBT would work

It was a suggestion in case you had problems with the wiring such
as switching transients etc that can be an issue for FETs which don't
have enough protection. In the worst-case scenario you could be
PWMing a lot of current into "some" inductance. Destructive noise
can also be induced onto long wiring from external sources too, and
it might be an idea to consider a sprinkling of remote ultrafast diodes
(anti-parallel to the LEDs) as well as the local Schottkys and zeners
protecting the FETs

Joe


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