[NJARC] Filter capacitors in series

[Al Klase]

Phil,

When electrolytics are used in series, the usual practice is to put a 
resistor in parallel with each cap to equalize the DC voltage each one 
sees.  In this case 100K or 220K half-watters should do the trick.  Then 
you have an 11uF 200-volt cap.  Without the resistors, the cap with the 
least leakage will have to withstand a disproportionate share of the 
total applied voltage.

Hope that helps,
Al

Phil Vourtsis wrote:

>Visit our web site - See http://www.njarc.org
>_______________________________________________
>Guys,
>   I'm replacing a 10uf 150 volt filter cap and I have a bunch of 22uf 100
>volt capacitors. I know if I put two of these in series the 22 uf becomes 11
>uf. But will the voltage rating be 200 volts? If so, then I will use them in
>this application. I'm not going to apply power until I hear from you guys.
>
>Phil Vourtsis
>Pres. New Jersey Antique Radio Club
>
>---My memory's not as sharp as it used to be. Also, my memory's not as sharp
>as it used to be.
>
>
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>  
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-- 
Al Klase - N3FRQ
Flemington, NJ
http://www.skywaves.ar88.net/