Adaptive current control for inductive loads

摘要

A current control system for controlling current provided to a load includes a current sensor 20 that senses a current to the load; a first power switch selectively enabled to supply power to the load and disabled to prevent power from being supplied to the load; and a control circuit 26. The control circuit includes a comparator 28 that compares the sensed current with a commanded current to determine whether to enable or disable the first power switch, and a timer circuit 34 that prevents the power switch from being enabled by the comparator more than once within a predetermined time period.