A question about output current control

Discussion in 'Embedded Systems and Microcontrollers' started by maz719, Feb 23, 2009.

  1. maz719

    Thread Starter New Member

    Feb 23, 2009

    I was hoping someone here could help point me in the right direction with this.

    My aerospace senior design project is on a CubeSAT attitude determination and control board, and it calls for regulated current through three magnetic torquers. Basically these torquers are just wires in a circular patter on a flat board, which produce a torque on the earths magnetic field (a very small one at that). My question is, is there anything out there that could regulate a single line of current that can be connected to our onboard computer? Like say we want to run current through one of the torquers, is there a small controller that would let me tell it to run a current at a certain value, and then change that value a few seconds later to slow the rotation of the satellite down? Constant current is not desired here but it seems we may have to use it if there is no other way to output variable current.

    If futher clarification is needed please ask, any response or help will be greatly appreciated.
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    What is the range of current?