8 Pad Launch Controller


Posted on Mar 30, 2013

The overall design went through a number of design changes as I tried one option after another and in the end, the simplest one won out. I had tried to utilize all electronic (no relay) circuitry but creating the high power circuits was too much of a challenge and so I reverted back to a mechanical relay design.



In general, the controller uses a 3 position key switch to select either a Continuity only, Safe, or Pads Armed circuit. The continuity circuits use MOSFETs to drive the indicator lights (either type 1816 12v bu




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