# Tag Info

6

First the disclaimer - if you modify the robot by defeating or replacing the protection features you're on your own. That being said here is some useful information that will hopefully help you make good design decisions. The fuse is actually a PTC. The benefit is when you eventually accidentally short battery to ground in your project the PTC protects but ...

3

I've gotten stuck in a rut with grasping what the "U" control signal actually refers to in the physical system But you've written what it is already! $$\dot{x} = Ax + Bu$$ It's whatever the input to your system is. Maybe it's speed, or thrust, or acceleration. It's the thing that is exciting your system. I'm looking at your equations and I don't ...

2

You are assuming that your voltage divider will split the 9 volts into 4.5V and 4.5V, but this relies on the upper resistance and the lower resistance values being equal. The issue you've got is that your motor is in parallel with one of your resistors. The formula for total resistance of resistors in parallel is:  R_{total} = \frac{1}{\frac{1}{R_1} + \...

1

I think there is information missing to analyze the problem. If that's an rpm-torque graph the fast answer is to search the largest combination of torque*rpm... And for the reduction ratio, 1:1 is the most efficient if you don't have any constraints 😅. But optimal will always depend on the application. And if you want motor efficiency you need to look at ...

Only top voted, non community-wiki answers of a minimum length are eligible