[pure-silver] Re: Worlds Fastest Camera Defies Gravity...
- From: Peter Badcock <peter.badcock@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 6 Jun 2005 09:47:26 +1000
From my experience, (electrolytic) capacitors burn (or more likely explode!)
when either
i) you apply a sufficiently high voltage to it (i.e. somewhat more than it
is rated to), or
ii) the polarity is reversed.
In your flash unit (i) could have happened if some other part of the
circuit went bunkum , or someone plugged it in to a power supply that was
higher than its rated voltage.
(ii) could have happened if someone plugged the power supply in the wrong
way around.
Flash units have very high voltage electrolytic capacitors in them (usually
200-300V), which means if you replace the cap, just be careful when testing
it out.
I used to blow up capacitors for fun when I was a kid, and also
accidentally when building my thesis project's power supply! Tantalum
capacitors give the biggest bang for your buck.
regards
Peter Badcock
On 6/6/05, Ray Rogers <earthsoda@xxxxxxxxx> wrote:
>
> and I was thinking I might be able to figure
> out type and value of the burnt out capcitor
> and replace it...
>
> of course, it might be wise to figue why it burnt out
> in the first place.
>
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