Quote:
Originally Posted by Tankdude
For a cut off there is a little circuit involving a opamp and diodes, OR get a speedcontroller for a model airplane. I'm sure you can hot wire it to fire and they (most) come with a battery cut off.
If your interested in the optamp I have the parts here but lost the diagram.
|
I think I can work something out with the MOSFETs. Perhaps a comparator arrangement which compares the battery output voltage stepped down through a voltage divider against the output from say a 6v regulator.
Basically when the output of the battery drops below 12v across a 50% voltage divider (6v) it drops below the 6v reference provided by a regulator output which is also fed by the battery output.