The time to charge a capacitor is given by the RC time constant. It is limited by the power rating of the resistor. The inductor is used to limit the current to the flash tube and/or combined into an autotransformer for a final voltage boost before the flash. Triggering is done differently on different types of strobe circuits, but cameras I believe use an SCR or triac that gets gated when you snap the picture. An automatic trigger would have to be implemented.
Sent via BlackBerry by AT&T -----Original Message----- From: John Gotschall <[email protected]> List-Post: [email protected] Date: Mon, 27 Oct 2008 06:52:25 To: KRnet<[email protected]> Subject: Re: KR> camera strobes Changing the flash rate may not be easy. often the flash rate is simply the amount of time it takes to charge the capacitor. If you reduce the capacitor size, it will speed up but then there is less energy available for the flash. Changing the charge current (to charge the existing capacitor faster) would require a redesign of the inductor and it's switching circuit, kind of a big job (unless you like to spend many hours winding transformers). Better to find another one with the correct flash rate already available. jg On Mon, 2008-10-27 at 12:24 +0000, [email protected] wrote: > I remember hearing about the camera strobe a few years ago and I had done > some testing of my own on another type of strobe. I had taken a fire alarm > system out of a building and it had stand alone strobes that were wall > mounted (simplex was the brand) they operated on 12 v and were self > contained. I hooked one up in the garage and left it run steady for over a > month and it never missed a beat. They are small and light and would only > need the power source from the plane, the strobe pack would be at the wing > tip and as far away from the radios as possible. The down side and the reason > I did not us that was that they flashed on about a 5 second cycle, I thought > that was to long and would have to use 2 on each tip to get the required > flash time. I know that Steve Makish works in the industry and may have the > knowledge to make something like this work. I have them laying aroound > somewhere yet if anyone wants to persue it. Just fuel for thought for the > experimenters out there. > Joe Horton > >_____________________________________________________________ > Find success and happiness with drug and alcohol rehabilitation. Click now. > http://thirdpartyoffers.juno.com/TGL2121/fc/Ioyw6i3nCeL11Wc4dmI0ixb4Pk26hLPmdaZmgGPfipkYT6raAd6Rji/?count=1234567890 >_______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to [email protected] please see other KRnet info at http://www.krnet.org/info.html
