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banned on 5/26/2009 Registered Member #1877
Joined: Mon Dec 22 2008, 02:03AM
Location:
Posts: 147
Barry wrote ...
hotcrazyfruit wrote ...
Barry wrote ...
Because it's the leakage through the internal resistance that can generate heat and boil the electrolyte until it explodes hot acid in all directions.
ITS ACID!!!! omfg.
hehe, I see the light dawns over the result of an experiment gone horribly wrong. Yeah, hence the root word "electrolyte". You've discovered that, in addition to leakage current, massive dielectric breakdown and internal arcing will also boil the acid. Next time get a video for us!
Electrolytic capacitors are made by etching a dielectric layer on aluminum foil. Each company's particular chemical bath is a closely-held secret cocktail of juices designed to gain advantages over other manufacturers. But it always starts with acid.
Cheers, Barry The trouble with being punctual is that nobody's there to appreciate it.
lol, i think i should just get a video camera, things hapen all the time, i got a shock from a fully charged 262.5 joules cap on the weekend, got a HORRIBLE shock, and gave me a nasty burn, the next worse was a bank of 24 photo flash caps, i didn't know the exposed bottoms of them actually held a current, i thought they were isolated until it was too late. but its funny cuz i just look at my freind and laugh.
Registered Member #1819
Joined: Thu Nov 20 2008, 04:05PM
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Posts: 137
Barry wrote ... Good idea. It's a system - all the parts had better be able to operate at the desired levels. Sometimes the SCR is the limiting factor, but it's a little harder to guesstimate the peak surge current expected.
The current is (ideally) equal to J = 0.5 * L * I^2, where J is the stored energy in the capacitors, L is the coil inductance, and I is the peak current. Of course, you have to calculate the energy loss due to resistance.
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newbie question on caps
