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coilgun question, could someone explain what an SCR is to me and how to incorporate it in a coilgun circuit? Answered

i am a novice "coilgun maker," and understand all the principals and such involved in it. now that im moving to more advance coilgun design, i need to understand what an SCR is/does. wiki can only teach u so much :D
any help or answers to this question will b greatly appreciated!

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steveastrouk
steveastrouk

9 years ago

An SCR is a very fast silicon switch. It can turn on and pass a lot of current very quickly. It cannot be turned off readily though.

Steve

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asantiago2
asantiago2

Answer 9 years ago

Okay thx for the info. Now a quick question, where should i put it in my coilgun circuit, like i was thinking of attaching it to the momentary switch im using.
Also do u no any place that sells them? Internet or store

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frollard
frollard

Answer 9 years ago

almost exclusively internet --

Where in the circuit - it would go where the switch WAS...it is handy because it isn't mechanical like a switch or relay, and won't weld shut like some switches will with huge current.

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asantiago2
asantiago2

Answer 9 years ago

Thx again. I believe i understand now. Final follow up question how are they rated by how much voltage it takes to switch em on or what?

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steveastrouk
steveastrouk

Answer 9 years ago

Rated by maximum single voltage, maximum pulse current, contuinuous current etc etc. . Switchng time in a toy coil gun is unlikely to be an issue. You really need to discharge a nice fat capacitor into the gate connection to turn them on most efficiently.

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R.A.T.M
R.A.T.M

Answer 9 years ago

i wold sagest a relay like this guy uses u can get relays and switches scrs and all the things dreams are made of at radioshack and stores similar i wold say use a relay triggered by a momentary switch and a 9 volt if you don't have a radioshack near you order from there site or others like it 

 the relay may look complicated but rely there not u just need to look at a circuit