Control circuit and method for thin film head writed river
US5550502A · kind A · utility
22Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | May 23, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/09
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A write driver control circuit controls the voltage level input to a switch circuit, providing increased range for head voltage swings and fast current switching, providing a write driver circuit with a variable voltage level which tracks the write current, as well as temperature and process variations, but which is independent of power supply voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.