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Current Dump

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Hope you can help, what Im wanting to do is dump around 3 - 5 Amps out to 4 DC coils in sequence when a ir sensor was obstructed in between each coil for around a 10th of a second each.

Worked out what im getting at yet? :D

The ciruit would have to run off a 9.6V 2000mAh battery..

Thanks for you time :)
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