| 摘要 |
A system includes a first current generator and a second current generator. The first current generator generates a first current to bias an actuator arm against a spring when a control signal is received. The first current generator discontinues the first current to release the spring and accelerate the actuator arm when servo signals are generated. The second current generator generates a second current that biases the actuator arm away from the spring when the first current is discontinued.
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