| 摘要 |
A magnetic recording control circuit for controlling current through a magnetic recording head includes a switch network, a signal coupler, and a current reducer. The switch network is connected to first and second magnetic recording head node regions and includes first, second, third, and fourth switches each having a variable magnitude conduction path and a control region. The signal coupler includes an input region and a plurality of output regions each connected to the control region of a corresponding switch. The current reducer is connected to the first magnetic recording head node region and shunts current away from the signal coupler.
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