Originally Posted by ericg
BigFish, but would you agree that in this case, the reson for the mower shutting down is the fact that there was no battery voltage to the B+ terminal of the regulator? I have never seen the setup that you are referring to without a regulator. How does the ac voltage from the stator become dc for the clutch? Do they use a diode which is a cheap regulator since the clutch is the only load?
No, that's not the case at all. His particular Kohler rect/regulator doesn't require 12V to get motivated.
I didn't say the no battery units didn't have a regulator. Most all use a rectifier/regulator to convert the AC to DC.
Most diode only systems offer no current-voltage regulation. (Think B&S powered lawn tractors etc )