Voltage monitoring system for an electric power source of a disc

Details Voltage monitoring system for an electric power source of a disc Voltage monitoring system for an electric power source of a disc

1985-10-28

1987-01-13

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Miscellaneous

360 69, 360 75, 360 60, G11B 1904

Patent

active

046369058

ABSTRACT:
The monitoring system includes two voltage detectors, each of which has hysteresis, wherein write, read, head feeding operations, and a motor driving function can be performed when the power source is in excess of an upper reset level, and, when the voltage decreases below an upper set level, writing is inhibited while the other operations can still be performed, and when the voltage further decreases below a lower set level operation of the entire drive is inhibited.

REFERENCES:
IBM TDB, vol. 20, No. 8, "Magnetic-Recording Write-Current Shutdown Upon Power Failure" Nomura, 1/78, pp. 3241-3242.
IEEE Trans. on Magnetics, vol. 14, No. 4, "Microprocessor Applications in Disk Storage Systems" Johann, 7/78, pp. 203-206.

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