Patent ID: 6975473

Claim:
An overshoot protection system, comprising: a biasing system operative to provide an input bias to associated output circuitry based on a mode signal indicating a first of at least two operating modes; a masking system operative to mask the input bias from being provided to the associated output circuitry for an initial part of the first operating mode based on the mode signal indicating a transition to the first operating mode, whereby overshoot in the input bias that is received by the output circuitry is mitigated; the first operating mode corresponding to a write mode of a disk drive system; in combination with disk drive system to mitigate overshoot in write current provided to an inductive load of the disk drive system, the input bias defining an input bias current, the combination further comprising a current mirror operative to provide the write current as a function of the input bias current; and further comprising a digital-to-analog converter that provides the input bias current to a switch connected between the converter and an input of the current mirror according to at least one reference voltage, the switch being operative to provide the input bias current to the current mirror based on the mode signal, the masking system coupled to steer the input bias current away from the input of the current mirror for the initial part of the write mode in response to the mode signal indicating the transition to the write mode.