Patent ID: 8339727

Claim:
A method, comprising: controlling a motor to actuate a head about a surface of a rotating recording medium, the motor being associated with first and second states of electric current, wherein a duration of the first state is longer than a duration of the second state, wherein controlling the motor comprises operating first pre-driver circuitry that controls current to the motor under a first mode and operating second pre-driver circuitry that controls current to the motor under a second mode; detecting an instance of the first state; and initiating, when the instance of the first state is detected, a switch from the first mode to the second mode to control the motor, wherein the switch is based on a condition of operation with respect to the rotating recording medium, wherein the switch comprises activating the second pre-driver circuitry and deactivating the first pre-driver circuitry, and wherein a start-up time of the second pre-driver circuitry is shorter than the duration of the first state.