ADAPTIVE CURRENT CONTROL FOR INDUCTIVE LOADS

摘要

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