Hello all,

I am building a very complex multi-dimensional magnetic levitation device. I have full functionality using l298h motor bridges, however these can not support the amperage we will need when the device undergoes up to 9 gs.

Battery: 11.1v with up to 90 amps burst.

As per our calculations, at most we will be pushing 8.7 amps of current. So, I will need two devices:

One that is compact, accurate with error less than 1%, can read many times a second, interfaces with arduino, and can handle up to 8.7 amps of current.

The other must also be compact, interface directly with the battery, can handle harsh adjustment of current quickly, and also has a very low error.

Any help is greatly appreciated, including help with logic to control three solenoids using a given device. I have been on the software side for several years but am just getting into hardware.

Thank you!