Looking at a couple of electric match vendors, they recommend 1 Amp (.75 Amp minimum) to fire. I would suggest designing for that if you plan to fire Pyro charges with this circuit.
I have successfully used 1s1p LiPo batteries as small as 250mAh (with 35c rating) to fire such charges. Jeremy Louke On Nov 10, 2016 2:46 PM, "Aaron Baker" <bitmapve...@gmail.com> wrote: > I'm trying to design a firing circuit for use on an amateur rocket > avionics board, for deployment of some kind of device during a flight. The > primary use is probably parachute deployment, but I could imagine other > uses like staging. I have a couple questions: > > -What kind of current would be useful to have? I'm shooting for a couple > hundred mA at 3.3 V, but that's just a guess. Need to know for my cap and > transistor choices. > -What kind of connector would people expect to see in that context? > > Thanks, > Aaron > > _______________________________________________ > psas-team mailing list > psas-team@lists.psas.pdx.edu > http://lists.psas.pdx.edu/mailman/listinfo/psas-team > > This list's membership is automatically generated from the memberships of > the psas-airframe, psas-avionics, and psas-general mail lists. Visit > http://lists.psas.pdx.edu to individually subscribe/unsubscribe yourself > from these lists. >
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