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1. 08:58 AM - Re: Re: IVO Prop current limiter (Robert L. Nuckolls, III)
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| Subject: | Re: IVO Prop current limiter |
At 11:06 PM 5/27/2017, you wrote:
>>>with the engine off, the prop and circuit behaved normally. With
>>>the engine running, the prop current is shut down almost
>>>immediately, though a small bit of pitch change does occur prior to cut-off.
>>>
>>>--------
>>>Doug
>
>Could this have something to do with the higher system voltage when
>the engine is running?
possibly . . . but I think not. The
current limiter is configured to 'latch'
into an OFF state approx 200 mS after
a current limit on the order of 9A is
achieved.
The 'latch' is subject to premature triggering
if subjected to noise which I suspect is coming
from the ship's alternator.
Emacs!
Doug,
Try tacking this combination of components onto
your assembly. The experiment is to see if adding
a smoothing capacitor to the circuit's power
source will sufficiently attenuate the antagonistic
energies. The 100 uF cap is the 'smoother' while
the 10 ohm resistor mitigates inrush currents impressed
on the circuit when the directional control switch
closes . . .
Bob . . .
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