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US 8,913,342 B1Granted
Data storage device adjusting range of microactuator digital-to-analog converter based on operating temperature
AssigneeWestern Digital Technologies, Inc.
InventorsYanning Liu, Timothy A. Ferris
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Abstract
A data storage device is disclosed comprising a disk, a head, and a microactuator configured to actuate the head over the disk. The data storage device further comprises control circuitry comprising a digital-to-analog converter (DAC) configured to generate a control signal applied to the microactuator. The control circuitry measures an operating temperature and then adjusts a range of the DAC based on the measured operating temperature.
Claims12
A data storage device comprising:
- a disk;
- a head;
- a microactuator configured to actuate the head over the disk;
- and
- control circuitry comprising a digital-to-analog converter (DAC) configured to generate a control signal applied to the microactuator, the control circuitry configured to:
- measure an operating temperature;
- and
- adjust a range of the DAC based on the measured operating temperature.
5 more elements
A method of operating a data storage device comprising, the method comprising:
- generating a control signal using a digital-to-analog converter (DAC);
- applying the control signal to a microactuator configured to actuate a head over a disk;
- measuring an operating temperature;
- and
- adjusting a range of the DAC based on the measured operating temperature.
2 more elements
Dependencies are inferred from the claim text.