[Milsurplus] Attention Smart People:

[J. Forster]

Nothing.

The two diodes with one side connected to GROUND are backwards.

-John

============


> Please take a look at this full-wave doubler circuit:
>
> http://www.kwarc.org/bulletin/99-04/tech_corner.htm
>
> At the end of the page is this warning:
>
>     This circuit can be operated off the AC line 120 or 230 V).
>     BUT the negative ground must be left floating since
>     one side of the line Is grounded and YOU CANNOT ground
>     both the Input and the NEG (or POS) DC or else B O O M!
>
> I guess I'm stupid (I've only had one cup of coffee, so there's my
> excuse),
> because I don't see a current path from the DC B+ side
> to the AC line, other than ground which is supposed to be -0- potential
> on both sides.  Now, if your B- ground came loose on the power supply
> and you didn't have a grounded line cord installed
> (which would be even stupider than me with this kind of voltage)
> you'd have full B- on the chassis to ground and your wife
> would have to pay for a funeral.
>
> OK... what am I missing here?
>
>
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