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Joined: Sun Mar 16 2008, 06:18PM
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Posts: 111
I am trying to make my own camera circuit by reusing the transformer, I will then use a transistor and a 555 timer. My main question is at what frequency should I make the 555 timer oscillate?
Also, I built a simple 555 driver using a capacitor and 2 resisters in an astable configuration. Now for some odd reason when ever I increase the voltage it starts to oscillate the led faster. Is this a normal function of the 555 or is my circuit messed up? I think it has something to do with the capacitor taking longer to discharge at the higher voltage but I am not sure.
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What frequency does a camera circuit operate at?
