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Calculating of not-polarized capacitors or electrolytics in series.

It calculates the total capacity of two or more capacitors connected in series, this configuration could be necessary to treat high voltage or to obtain not standard capacities.

Capacitors in series.
Scheme capacitors in series
  • Possible configurations:
  • A) Electrolytics capacitors in series.
  • B) Electrolytics capacitors in antiseries.
  • C) Various capacitors in series.

Insert the values only for the capacitors needed leaving empty the others.

Data input :

Measure unit for cap.

Value . . . C1





Results :

Percentage of alternate voltage resulting on each capacitor.

V1 %

V2 %

V3 %

V4 %

V5 %

Total resulting capacity . . .

Wait calculate

The voltage percentage resulting on each capacitor is valid when the series works with an alternate system or with residual ripple.
In case of pure continuous voltage (or without ripple) the voltage on each capacitor is due to the parasitic resistance of the same and it is surely different from that on alternate current.

For power supply :
To avoid unbalancement of the voltage on each capacitor in series, can be added a resistor in parallel to each other with a value as such to reduce the differences due to the parasitic resistance (different for each capacitor, also if they are of the same capacity).
Balancing resistor on capacitors in series. This solution is good only when every capacitor in series has the same value, also the resistors must have the same value.

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