Capacitors in series?

[diana]

Anyone ever seen capacitors on a PC motherboard in series? I have two 820uf 6.3V caps that each read ~1600uf each in circuit. Across the two, I get ~1600uf pos of 1 to neg of 2, and 1776uf neg of 1 to pos 2.

Trying to figure if they are way out of whack on capacitance or mounted in series.

[b700029]

Re: Capacitors in series?

That would be parallel.

http://en.wikipedia.org/wiki/Series_...s#Capacitors_2

[severach]

Re: Capacitors in series?

ESR measures fairly reliably in circuit. Measuring capacitance in circuit is not reliable at all. The capacitors must be pulled to get a reliable capacitance measurement.

[PCBONEZ]

Re: Capacitors in series?

Can't measure ESR in circuit with parallel caps either.
.
That's like measuring resistors in parallel.
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