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From: Kevin McMurtrie
Subject: Re: Piezo Ignitor to power an LED -- any ideas?
References: <firstname.lastname@example.org> <email@example.com>
User-Agent: MT-NewsWatcher/3.2 (PPC Mac OS X)
Date: Thu, 21 Nov 2002 19:44:16 GMT
NNTP-Posting-Date: Thu, 21 Nov 2002 11:44:16 PST
In article <firstname.lastname@example.org>,
>On Thu, 21 Nov 2002 14:56:06 GMT, "Sir Charles W. Shults III"
>> Why not use a rare earth magnet moving through a coil? You can get a
>>amount of power out of that. They even make flashlights that use it- you
>>the flashlight and the magnet creates enough current to charge it (really
>>charging a capacitor) which provides light...
>>My robotics, space and CGI web page - http://home.cfl.rr.com/aichip
>Unfortunately I can't say why, but I need to use the piezo ignition,
>or the general impact-causes-electricity effect of piezo elements.
>I've seen those flashlights though, and they're quite cool. :)
>The way the idea idea worked in my head was to get to the point where
>I could use multiple clicks of the piezo--or multiple piezo ignitions
>in parallel--to charge a capacitor. The capacitor would then slowly
>discharge over time into the LED. The next step after that would be
>running power through a pulsed power supply such that the LED blinks
>rapidly enough that it's perceived to be constantly on, but uses
>significantly less power than it would if it were.
>Any further ideas would be appreciated. :)
Can't you whack a piezo speaker instead? It's 1000 times better
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