Gilles
that study was fascinating! Thank you.
Graham
GTH wrote:
>
> Hi all,
>
> For what it's worth, I made some investigation with the help of a
> friend, and opened a few failed Rotax regulators.
> It appears that the more power you draw from the regulator, the higher
> the junction temperature, and the more likely the failure.
>
> Bob Nuckolls provides a nice circuit proposition for the Rotax
> alternator/regulator, with overvoltage protection.
> I personnally would and did shun the Rotax circuit proposition.
>
> Also, I would like to point out that the alarm lamp is driven by the
> regulator, and so can't be expected to provide any degree of protection.
>
> Some pictures and thermal info here
> http://contrails.free.fr/elec_ducati_en.php
>
> Best regards,
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