Disk drive motor spin-up control

Details Disk drive motor spin-up control Disk drive motor spin-up control

1998-12-04

2000-06-20

Sircus, Brian

Electricity: motive power systems

Motor load, armature current or force control during...

318778, 318798, 318806, 318809, 318439, 318473, 360 7303, H02P 104, H02P 126, H02P 528, G11B 1546

Patent

active

060781580

ABSTRACT:
A motor control processor controls motor spin-up in a disk drive by detecting environmental temperature at the spindle motor of the disk drive, controlling commutation phase advance to generate substantially maximum torque if the detected environmental temperature indicates that maximum torque is needed, and adjusts the commutation phase advance for optimal efficiency after the maximum torque is no longer needed. Following motor start and reaching operational speed, the motor is operated in a steady-state maximum operating efficiency mode unless sensed environmental temperature indicates that maximum torque, rather than maximum efficiency, is needed. The system determines that the need for maximum torque has passed either when a predetermined time interval after motor start expires or by repeatedly polling motor temperature information.

REFERENCES:
patent: 3908130 (1975-09-01), Lafuze
patent: 4835448 (1989-05-01), Dishner et al.
patent: 5097189 (1992-03-01), Ito et al.
patent: 5268627 (1993-12-01), Baik et al.
patent: 5436544 (1995-07-01), Matsubara et al.
patent: 5466999 (1995-11-01), Hutsell
patent: 5471353 (1995-11-01), Codilian et al.
patent: 5777447 (1998-07-01), Okano
patent: 5986419 (1999-11-01), Archer et al.
D.F. Glaess et al., "Variable Torque Constant Motor Drive", Feb. 1996, IBM Technical Disclosure Bulletin, vol. 39, No. 02, pp. 149-150.

Affiliated with

Also associated with

Rating

Disk drive motor spin-up control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk drive motor spin-up control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive motor spin-up control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1855974