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Registered Member #1537
Joined: Thu Jun 12 2008, 06:44PM
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Posts: 51
hi there, i have searched all over the web for the circuit diagram of disposable cameras. the goal is to use the transformers to charge a cap bank for a ciol gun but to use multiple transformers all running of of one (high power) transistor to maximise power and to keep it compact. if any one knows of were i can find the schematics of the cameras and or substitute ways to use the transformers to charge caps please send them my way thanks
Registered Member #607
Joined: Tue Mar 27 2007, 10:39AM
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Posts: 64
I think something like Sams Fotofacts may have them. I remember seeing ascii style graphics on the web some years back involving a Kodak disposible camera. Not sure if the two are related, but could be worth a search on Google. Cheers. Mark H.
Registered Member #1537
Joined: Thu Jun 12 2008, 06:44PM
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Posts: 51
hi there i have just tried two of these circuits but there is a problem. when i power the circuit up all it does is make the transistor very hot. i have made the circuit with a high power transistor and only used the charging part of the circuit - any more reliable circuits you know of
Registered Member #1537
Joined: Thu Jun 12 2008, 06:44PM
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with the 555 timer i guess you can just set it up to produce square wave pulsed dc - then run that through the primary of the transformer right. im guessing i will have to tune the 555 to get the most efficient output. - with that setup will it still put out the same voltage as the origioal camera circuit?
Registered Member #1407
Joined: Fri Mar 21 2008, 07:09AM
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Posts: 222
polop wrote ...
with the 555 timer i guess you can just set it up to produce square wave pulsed dc - then run that through the primary of the transformer right. im guessing i will have to tune the 555 to get the most efficient output. - with that setup will it still put out the same voltage as the origioal camera circuit?
Registered Member #350
Joined: Mon Mar 27 2006, 05:14PM
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Posts: 106
polop wrote ...
with the 555 timer i guess you can just set it up to produce square wave pulsed dc - then run that through the primary of the transformer right. im guessing i will have to tune the 555 to get the most efficient output. - with that setup will it still put out the same voltage as the origioal camera circuit?
You can not connect the 555 directly to the primary. You need to put a transistor in between. So the 555 is connected to the base of the transistor and the collector is connected to the primary.
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diposable cameras
