Quadratic current slew control circuit
US9966094B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2017 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Sep 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and techniques relate to current slew control circuits. According to an aspect, a system implementing the quadratic slew control aspects comprises a disk; a read/write head; and a slew control circuit coupled to the read/write head, the slew control circuit configured to:receive an input current signal, apply a slew current to the input current signal in response to a change in a power setting for the read/write head, and provide an output current signal that is adjusted to a quadratic current slew based on the applied slew current, the output current signal generating an output voltage characterized by a linear slew and controlling a movement of the read/write head over the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.