Magnetic head driving unit

Details Magnetic head driving unit Magnetic head driving unit

1983-08-16

1986-01-14

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 555

Patent

active

045648727

ABSTRACT:
A magnetic head driving unit according to the present invention includes a microprocessor. The microprocessor determines whether a first seek operation for positioning the head on an initial position of a cylinder is completed. If the first seek is not completed, analog switch is triggered ON by a control signal from the microprocessor. Upon the ON operation of the analog switch, the limiter restrains a driving current for a motor in a predetermined value, thereby preventing overrun of the motor.

REFERENCES:
patent: 4375611 (1983-03-01), Greig
patent: 4395742 (1983-07-01), Ostroff
patent: 4479177 (1984-10-01), Berti

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