289Views10Replies

# Can capacitors be wired in a series?

I am pretty sure a series goes from + to - to + ext. and parallel is grouping all + and all - separately. Is it possible to wire capacitors in a series

289Views10Replies

I am pretty sure a series goes from + to - to + ext. and parallel is grouping all + and all - separately. Is it possible to wire capacitors in a series

## Comments

Best Answer 10 years ago

Yes, it increases the voltage they can handle, but reduces their capacity. Series capacitors 1/total capacitance = 1/ c1+1/c2+1/c3 etc....

Answer 10 years ago

Reciprocal resistance is called "conductance". Does the reciprocal of capacitance have a name? Like maybe "emptynance", or something like that?

Answer 10 years ago

Susceptance I think.

Steve

10 years ago

Yes you can, but why do you ask?

L

Answer 10 years ago

Capacitors usually didn't have any output on the - I don't think, because you attach + to + to charge them and discharge them. That would mean that only one would charge, but I am wrong apparently so thanks.

Answer 10 years ago

You go:

+CAP-+CAP-

so you're still charging the same way.

L

10 years ago

If you know the formulas for combining resistors, they're exactly opposite for capacitors.

R1 and R2 in series equals R1+R2

C1 and C2 in parallel equals C1+C2

R1 and R2 in parallel equals 1/(1/R1+1/R2)

C1 and C2 in series equals 1/(1/C1+1/C2)

Hadn't thought about the effect on voltage they can handle. that's not one I've ever needed to calculate. Steve's observation makes sense, I think, but I'm not sure offhand what the formula would be. Easy enough to look up with a websearch if you need it.

Answer 10 years ago

Its not a GOOD idea to rely on them to volt share, since the capacitance can be +100% / - 50% in cheap electrolytics.

Answer 10 years ago

That was my feeling, but since it would never have occurred to me to try it...

Answer 10 years ago

Yeah, same as how parallel lowers resistance but increases amperage allowance...