Coil driving system, information storage apparatus, and...

Details Coil driving system, information storage apparatus, and... Coil driving system, information storage apparatus, and...

2005-07-12

2005-07-12

Psitos, Aristotelis M (Department: 2653)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

Reexamination Certificate

active

06917567

ABSTRACT:
A predetermined electric current is supplied to coil by changing a pulse width of a voltage applied to the coil according to a current instruction value. An electric current which flows through the coil is detected; the thus-detected current value is compared with the current instruction value; the voltage applied to the inductance device is turned on/off according to the comparison result; and an off time for which application of the voltage to the coil is interrupted is controlled according to the current instruction value.

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