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Unread 02-03-2012, 23:07
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Matt Krass Matt Krass is offline
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Re: Jaguars vs Victors

Quote:
Originally Posted by techhelpbb View Post
Sorry, I'm not following. It might just be me, but I think I should take you up on your offer to provide that illustration of what you propose.
Excuse the crudity of this model, it's not to scale...

So, with the Jaguar in forward, and the Victor in reverse, in the on period for both, Node A will be at +12V, and Node C will be at 0V, flowing some current through dynamic load R1, and B would be at 0V and D at +12V, so current is flowing the opposite way through R2.

When the PWM goes off, let's assume the Victor stays on longer for the sake of argument, so C stays at 0V, D stays at +12V, and A also goes to 0V, and B goes to +12V... No current flows.

Ok, so what obvious thing did I miss?
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Matt Krass
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I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)

Last edited by Matt Krass : 02-03-2012 at 23:10. Reason: Adding explanation of my thoughts