Quentin wrote:
>
>Wojciech Zabolotny wrote:
> >
> > Hi All,
> >
> > I've bought a few second hand old DC/DC converters (ASTEC AD1D15A10 and
> > AD1D12A10). Unfortunately I couldn't find their pin layout.
>How many is a few? Enough to sacrifice one?
>Connect up an input supply to any input pin.
>You have a 50/50 chance to find the right connection.
>

I'm sure someone will have an answer posted while I'm still typing this. :=)

In case nobody does:

If you decide to use this 50/50 route, I'd suggest using a current-limited
variable supply to drive the converter. Monitoring the input current while
raising the supply voltage should keep you from blowing the converter.

If these converters have reverse-voltage protection, you'll get no output
voltage and no input current when the connections are backwards.

If they don't, I would expect that you'd see a large input current.

In either case, you should be able to determine the polarity without blowing
the converter.

Just my $0.02, Bob


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