 What to look for in photodiodes for coilgun optics.
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El_Roberto
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Registered Member #1774
Joined: Wed Oct 22 2008, 02:51AM
Location:
Posts: 135
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Well that sucks because the only optoisolator that I can find that has nS rise time cost $5 each and I would need 6 of them, so they might end up being the most expensive part of my project! Are you saying to use transistors to trigger the optoisolator?
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guitardude012
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Registered Member #968
Joined: Fri Aug 24 2007, 04:54PM
Location: Norman, Oklahoma
Posts: 104
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Yeah optoisolators are expensive. Usually you have to use transistors cause the photodiode does not allow for much current normally.
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blackgrunge
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Registered Member #1889
Joined: Mon Dec 29 2008, 07:36AM
Location:
Posts: 55
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Optos are extremely cheap if you look in the right place. Here's a site where you can get 10 for $2.20
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