Patent ID: 6215607
Filing Date: 2001-04-10
Classification: G11B

Abstract:
A, write driver circuit for selectively controlling a direction of write current flow through a magnetic head having an inductive coil, comprising:means for continually providing a first write current at a first end of the head and for continually providing a second write current at a second end of the head;forward drive means operatively connected to the first end of the head For sinking the first write current and for sinking, the second write current through the coil in a first direction;reverse drive means operatively connected to the second end of the head for sinking the second write current and for sinking the first write current through the coil in a second direction opposite the first direction; andcontrol means for controlling the forward and reverse drive means to sink both the first and second write currents so that one of the first and second write currents flows through the coil in a selected one of the first and second directions.