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Old 28th March 2004, 12:00 AM   #1
Magura is offline Magura  Denmark
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Default Capacitors in series???

I have a handfull of caps thats rated 40V. Now id like to run 60V rails, can i couple 2 of them in series and get the equalent of a 80V cap with twice the ESR ??

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Old 28th March 2004, 12:03 AM   #2
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you will get some double voltage half capacitance caps. So if you want double voltage and same capacitance you need to parallel two of the two in series caps and thus need four.
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Old 28th March 2004, 12:10 AM   #3
Magura is offline Magura  Denmark
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Thanks.

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Old 28th March 2004, 01:20 AM   #4
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Isn't it important to parallel the series caps with resistors to properly split the load? I read that somewhere once... Otherwise the top cap sees most of the voltage and still runs the risk of operating beyond its rating.

Or something like that.javascript:smilie('')

-RobRoy
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Old 28th March 2004, 02:01 PM   #5
Magura is offline Magura  Denmark
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To couple caps in series seems to all in all being a bad idea

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