I have seen pcb-trace fuses on a power supply PCB in a Tektronix 577
curve tracer, which I think is from the '70s. So, this technique seems
to be around for a while and to me it can makes sense for certain
uncritical applications (e.g. tripping extremely unlikely and only for
full shorts, delay time uncritical etc.... )
Derk
logicresearch wrote:
>
>
> Hi,
>
> I have two photos at <http://www.logicresearch.co.nz/pcbfuse.html
> <http://www.logicresearch.co.nz/pcbfuse.html>> of the pcb tracks being
> used as a fuse.
> I've not seen this before, and I thought you might like to see how it
> worked.
> Has anyone here got the maths on track widths and thickness for this?.
>
> Daryl Mills
> LogicResearch
>