Disk drive and calibration method therefor
A disk drive device and actuator technology, which is applied in the direction of driving/moving recording heads, support heads, instruments, etc., can solve problems such as actuator oscillation, and achieve the effect of suppressing instability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0039] Hereinafter, preferred embodiments to which the present invention is applied are described. For clarity of explanation, the following description and drawings contain appropriate omissions and simplifications. In all the drawings, the same elements are denoted by the same reference numerals, and their repeated descriptions are omitted if not necessary for clarity of explanation. Next, preferred embodiments of the present invention will be described by taking an example of a hard disk drive (HDD) as an example of a disk drive device.
[0040] A feature of this embodiment is velocity feedback control of the VCM driving the actuator. The HDD includes a detection circuit and a controller for detecting the back EMF voltage of the VCM. The controller performs correction operation processing on the detected back EMF voltage, and executes speed feedback control of the VCM using the result of the operation. The controller calibrates the correction operation coefficient before...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com