What sort of battery are you using, LiPo? If you’re using a FETS switch for
your pyro outputs, you’ll need a resistor otherwise you’ll fuse them shut on
power-up. As you might imagine this creates a very dangerous situation when you
have charges hooked up.
Judging only off your demographics, your plans for current sound fine, but
there are other factors to consider too like what voltage is required for your
emtaches to fire. 3.3v is probably enough for many, but not all. What type of
“connector” are you referring to? I’m also curious if you’re using barometric
And test, test, test! I’ve seen far too many expensive lawndarts as a result of
people flying homebrew recovery systems without testing them.
[mailto:psas-team-boun...@lists.psas.pdx.edu] On Behalf Of Aaron Baker
Sent: Thursday, November 10, 2016 2:45 PM
Subject: [PSAS] Question for amateur rocketers
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
-What kind of connector would people expect to see in that context?
psas-team mailing list
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