Patent ID: 7184232

Claim:
An apparatus for effecting symmetric driving of a write head, the apparatus comprising: (a) a first drive unit coupled with a first connection locus of said write head; (b) a second drive unit coupled with a second connection locus of said write head; and (c) a control unit coupled with said first drive unit and said second drive unit; said control unit effecting complementary coordination by said first and second drive units to provide a first drive signal from said first drive unit at said first connection locus and a second drive signal from said second drive unit at said second connection locus, said first and second drive signals in substantially equal magnitudes and of opposite polarities during respective time intervals of operation of said write head, wherein said first drive unit comprises at least one first current mirror structure and said second drive unit comprises at least one second current mirror structure substantially similar to said at least one first current mirror structure, and wherein said first and second drive signals include a boost signal.