High speed inductor current driver with minimum overshoot

摘要

A high speed write driver for an inductive head of a magnetic storage medium is provided which contains a mechanism to reduce the inductive head current overshoot and therefore reduce jitter and, thus, increase the write cycle frequency. An input voltage control stage controls a voltage applied to the inductive head from the voltage source. A current supply to supplies current to the inductive head element, and a damping circuit in communication with the inductive head element. An overshoot suppressor circuit is provided such that the input voltage control tage is responsive to the overshoot suppressor circuit.