Pulse Motors: MHOP #6: Startup by Setpoint Control, Reversed Running

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Here I demonstrate that no starting spin is needed. The op-amp comparator is so sensitive that it doesn’t take much magnet motion to cause a detectable voltage in the sense coil and flip the comparator state to turn on the drive coil.

Schematic for the op-amp section and power section here:
http://www.overunity.com/13852/self-accelerating-reed-switch-magnet-spinner/msg372619/#msg372619

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