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Unread 07-01-2011, 18:02
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Ether Ether is offline
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Re: Modeling motor control

Quote:
Originally Posted by Kevin Sevcik View Post
Yes, but with a 1V drop, which will drain the current a fair bit quicker.
I plugged an additional 1 volt into the analysis mentioned in my earlier post; it makes very little difference with a CIM.

I don't have L values for other motors.

Quote:
And the more important difference that if your current decays quick enough that you'd start regenerative braking, the diodes will stop that. So the "Forward-Open" mode has an advantage in the (rare) case that a motor is turning fast enough with low enough current that you'd encounter reverse torque.
Good point. That may (or may not) happen with other motors.



Last edited by Ether : 07-01-2011 at 18:46. Reason: corrected typo