Jaguars vs Victors

[techhelpbb]

Originally Posted by Matt Krass

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?

Now I see what you intended. Thanks.

Well for one thing there's the current sensing resistor in the Jaguar which is not in your diagram.
If you look at Ether's link of the manual it's in the schematic on page 23 pretty much dead center.