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Unread 28-12-2013, 17:17
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Re: Jaguar Speed & Position Control with Encoders

Quote:
Originally Posted by Ether View Post
Victors will accept 200 Hz input PWM frequency.
Yeah, but the point Jared was making was that the pulse width coming from the sidecar is about 20 ms, so you still can't get better than about 50 hz.

Also, I'm having a really hard time thinking of an FRC application where you need to update 1000 times per second over 100 or 200. It seems to me that in a single millisecond, a negligible amount of change can be done to the speed of a motor, and that some sensors won't show a change over 1/1000 of a second.

Has anybody really seen a benefit from really fast PID loops?