Patent ID: 9105276
Filing Date: 2015-08-11
Classification: G11B

Abstract:
1. A data storage system, comprising: a preamplifier, the preamplifier including write block circuitry, the write block circuitry including a steady state current level block, a first current overshoot block and a second current overshoot block, wherein the steady state current level block, the first current overshoot block and the second current overshoot block are configured for generating a plurality of signal outputs, the preamplifier configured for generating and transmitting an output derived from the plurality of signal outputs; write coils, the write coils being operationally coupled with the preamplifier; a write head, the write head being magnetically coupled with the write coils, the write coils configured for controlling magnetization of the write head, the write head being operationally coupled with the preamplifier, the write coils and write head configured for receiving the transmitted output from the preamplifier; and a recording medium, the recording medium being operationally coupled with the write head, wherein the write head is configured for writing data to the recording medium based upon the received preamplifier output, the preamplifier output including a write current waveform having a steady state current level that is controllable via the second current overshoot block.