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26th October 2004, 05:27 PM
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#1 |
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diyAudio Member
Join Date: Jan 2004
Location: Cortez Colo.
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1 farad = 1,000,000.uf
and if so how do they make the auto audio 1 farad cap so small?
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26th October 2004, 05:45 PM
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#3 |
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diyAudio Member
Join Date: Dec 2003
Location: Near Seattle
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Roughly put:
cap-size ~ capacitance x voltage handling the size of the cap is porportional to it's capacitance and voltage handling. So, if you only need a small amount of voltage handling, you can make the capacitance fairly high in a pretty small size. Such as those 1F 5v caps that are the size of a few poker chips stacked. Those 1F car caps are not that small... -- Danny |
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26th October 2004, 05:49 PM
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#4 |
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diyAudio Member
Join Date: May 2004
Location: manila
 
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the caps are usually rated at 20-25V DC,
I don't think they are small considering the size and voltage rating. for size comparisons, I usually multiply the voltage and capacitance ratings. (pointless but it makes some sense.  )so if the cap is 20v X 1000000uF, it would be approximately the same size as 100V 200000uF. 
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26th October 2004, 05:50 PM
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#5 |
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diyAudio Member
Join Date: Jan 2004
Location: Cortez Colo.
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I have 4 15,000uf caps and combined they are larger in physical size then a 1 farad cap. So it is the voltage rating that makes the difference.
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26th October 2004, 06:04 PM
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#6 | |
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diyAudio Member
Join Date: Apr 2004
Location: Kharkov
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Quote:
capasitor size ~ capacitance x (voltage) ^2 ) RTFM
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26th October 2004, 07:06 PM
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#7 |
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diyAudio Member
Join Date: Aug 2004
Location: SF Bay Area
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RTFM
Ripe Tomatoe From Molokai Right Turn For Missouri Roam The Frontier Miss Rough Tough Female Masseuse Right Tuthe Front Mister Real Tough Farm Maiden Read That First Mommie Real Transistors From Motorola nah, can't get it.  Prosit 
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26th October 2004, 07:10 PM
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#8 |
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diyAudio Editor
Join Date: Dec 2001
Location: San Francisco, USA
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Read The !@#$ Manual?
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26th October 2004, 07:14 PM
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#9 |
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diyAudio Member
Join Date: Aug 2003
Location: Long Island, New York
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By jove, I think you've got it.
__________________
----------------------------------------------- Kilowattski |
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