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Jeff Liebermann Jeff Liebermann is offline
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Default Why do some manufacturers wrap the electrolytic capacitor that gets the hottest in a switching power supply in shrink wrap?

On Wed, 31 Aug 2011 11:14:07 +1000, "Phil Allison"
wrote:

"Jeff Liebermann"

Electrolytic caps do not normally get hot. There is a temperature
rise equal to the ripple current times the square of the ESR
(equivlent series resistance).



** Wanna try that again ??


Oops.
Powah = Ripple Current squared times ESR.
Thanks (grumble)...

Pro audio is the same as consumer audio, except for the price tag and
the hype.


** Only true of most Chinese made stuff.


I didn't know that anything was made outside of China these days. If
the boards and boxes aren't built in China, the components probably
are made in China.
http://www.made-in-china.com/products-search/hot-china-products/Pro_Audio.html
http://www.made-in-china.com/Consumer-Electronics-Catalog/Professional-Audio-Lighting.html
http://www.diytrade.com/china/4/products-list/0-k-c-1/pro_audio.html
http://www.alibaba.com/countrysearch/CN/pro_audio.html




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