steven Posted October 8, 2005 Report Share Posted October 8, 2005 :) Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 8, 2005 Report Share Posted October 8, 2005 Hi Steven,Why did you parallel three protection diodes?The 1000 volt 1N5408 has a peak current rating of a whopping 200A!I doubt that the flyback current exceeds 20A and is a very short duration so surely a single diode is fine. ;DPlease post the schematic again since it got lost in the forum. Quote Link to comment Share on other sites More sharing options...
steven Posted October 8, 2005 Report Share Posted October 8, 2005 :)audio guru those 1n5408 diodes in my dicksmiths catalouge says they are rated at 3 amps so i dont know where ya got the amps details on them from, as for the diodes well i got the idea of useing three of them from the circuit schematics for the high velocity electromagnetic launcher or ring shooter so i thouth id borrow that and use it for this coil gun gee it sure goes better now anyhow that circuit i posted agers ago to the topic chargeing of capacitor by bakr its in the high voltage stuff section as for the circuit i used to charge the capacitor with not includeing the modifications here it is Quote Link to comment Share on other sites More sharing options...
steven Posted October 8, 2005 Report Share Posted October 8, 2005 :) Quote Link to comment Share on other sites More sharing options...
steven Posted October 8, 2005 Report Share Posted October 8, 2005 :)heres the more detailed bit of the circuit i borrowed the 3 diode idea from Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 8, 2005 Report Share Posted October 8, 2005 Hi Steven,I don't believe Dick Smith's electronic components and used car parts (hee, hee ;D) catalog. I look at the manufacturer's datasheet: Quote Link to comment Share on other sites More sharing options...
steven Posted October 9, 2005 Report Share Posted October 9, 2005 :)audio guru there we are 3.0 amps forward current ha ha ha ha as said and the wire size of the diode well my 10 watt resister has bigger legs than that. oh thats a good idea that used car parts hey well im looking for a v8 engine to put in me coilgun to drive it to the test zone lol ha ha ha ha Quote Link to comment Share on other sites More sharing options...
steven Posted October 30, 2005 Report Share Posted October 30, 2005 here is the circuit i use to power the disc shaped flyback transformer with for my high voltage photo flash cap charger that i use for powering my revised coil gun Quote Link to comment Share on other sites More sharing options...
steven Posted October 30, 2005 Report Share Posted October 30, 2005 :)the 555 timer and irf540 or 640 or 740 n channel ,mosfet and potentiometers are separate and not on the board so the pins you see are where the wires from the timer and mosfet and potentiometers run to . here is another flyback ill be useing in this latest cap charger for the coilgun now ive had to replace a section of the circuit board with pvc as it was broken Quote Link to comment Share on other sites More sharing options...
steven Posted October 30, 2005 Report Share Posted October 30, 2005 :)the white stuff you see on that flyback was to keep the loose pins in place through the pvc i cut and shaped to replace the broken off circuit board section, Quote Link to comment Share on other sites More sharing options...
steven Posted October 30, 2005 Report Share Posted October 30, 2005 :)here is my revised cut down mini coilgun i used before with the charged up caps i charged up useing my high voltage photo and non photo flash cap charger Quote Link to comment Share on other sites More sharing options...
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