Voice coil motor feedback control circuit

Details Voice coil motor feedback control circuit Voice coil motor feedback control circuit

1997-03-17

1998-10-06

Masih, Karen

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, 318801, 318798815, 318280, 318290, 3689072, 388903, 3889072, 363 98, 363132, 361 30, 360 75, 360137, 360 5805, H02K 2300

Patent

active

058181806

ABSTRACT:
A circuit for driving a voice coil motor used to position the heads of a disk drive is disclosed. The circuit consists of a an H-bridge circuit, a controller, and a feedback loop. The feedback loop prevents the BEMF from driving a voltage on the voice coil motor above the supply voltage.

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