In message
<64D32EE8B9CBDD44963ACB076A5F6ABB02716FE8@Mailbox-Tech.lecotech.local>,
dated Thu, 17 Sep 2015, "Kunde, Brian" <brian_ku...@lecotc.com> writes:
These power supplies are power-factor corrected. I will check with
engineering if such components are damaged.
As you describe the damage, the PFC circuit would be in that area, so it
is involved.
The large line filters are internal to our instruments so yes, they are
always in the circuit ahead of all AC within the instrument.
I suspect that something is causing the stored energy in the filter to
be dumped into the PFC circuit. This may be due to the PFC circuit
itself. I was marginally involved in a discussion of stability issues in
PFC circuits, but it was highly mathematical so I didn't learn much.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
When I turn my back on the sun, it's to look for a rainbow
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
-
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