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3rd May 2009, 03:51 PM
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#11 |
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diyAudio Member
Join Date: Jan 2009
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Tking ones ears off???Is that legal???
To SY...ok, if you must !!!
BTW...what happens to voltage handling when caps are in parellel???  "You can't make chicken salad from chicken crap" My Grandpa |
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3rd May 2009, 04:42 PM
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#12 |
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diyAudio Member
Join Date: Jan 2005
Location: Chicago
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The voltage ratings are additive in series....just the opposite of capacitance value
Two 100uF 100V caps in series would be 50uF 200V rating... Just the opposite when in parallel Two 100uF 100V caps in parallel are 200uF and 50V rating. I think I got that right...been a long morning without coffee...
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Pillage Before You Burn. |
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3rd May 2009, 06:15 PM
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#13 |
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diyAudio Member
Join Date: Mar 2007
Location: Middle of Nowhere
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voltage rating doesn't change when adding capacitors in parallel, but doubles when adding similar caps in series...
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In the immortal words of Socrates, "I drank what!?" |
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3rd May 2009, 06:46 PM
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#14 | |
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diyAudio Member
Join Date: Dec 2008
Location: Victoria, BC
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Quote:
As I recall:the voltage rating on the cap refers to how much voltage can be applied to the 'plates' in the cap before 'breakdown' ie flashover or shorting between plates. If you have caps in series, you have to make sure the applied voltage is 'shared' equally between the two caps, to be able overall to handle 2x the rated voltage for each cap. The standard method for doing this is to put a fairly high value, low-wattage resistor in parallel with each of the series caps. If you have caps in parallel, then each cap is 'on its own' as far as handling voltage applied, so the parallel combo has the same voltage rating as the individual caps. Summary (as I see it): Series caps- 2 x rated voltage of each cap, with balancing resistors Parallel caps- 1 x rated voltage of each cap. Cheers John |
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3rd May 2009, 07:28 PM
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#15 |
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diyAudio Member
Join Date: Jan 2005
Location: Chicago
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Whoops. I stand corrected,
From www.noahtec.com/series-parallel-capacitance.htm - "the working voltage of parallel capacitor is equal to the lowest working voltage rating in the combination"
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3rd May 2009, 07:39 PM
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#16 |
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diyAudio Member
Join Date: Mar 2009
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