Re: [CAD_CAM_EDM_DRO] Resettable Fuses

Hi Wayne;

I have not done what you describe, in fact I have not implemented the
devices at all. They are however temperature sensivtive devices and
that does cause me some alarm.

The closest analog that I've had negative experience with are the
tempearture sensivtive switches that used to be used on the old Bandit
DC servo cards. These were problematic. I realize the implemetation
isn't even close to the same but I developed a bad taste in my mouth for
flakey electronics because of them.

Obviously what you describe is a differrent device altogether. It
would probably be best to contact the manufacture for suggestions or
reccomendations. Maybe a PDF download might have such info for
you. I would imagine it would be a trick to size them correctly.

Dave


Wayne C. Gramlich wrote:

>All:
>
>Has anybody had any experience placing any of the
>resetable fues (aka Polymer Positive Temperature
>Coefficeint -- PPTC) in line with their stepper
>motor coils to provide over-current protection.
>If so, did they work out? or where there unintended
>consequences?
>
>Any feedback on this issue would be appreciated.
>
>-Wayne
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