Inductive load driver slew rate controller
US9312852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2014 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jun 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0072
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit and method for digital controlling the slew rate of load voltage are provided. The circuit is comprised of a digital slew-rate control unit that utilizes a feedback signal to generate control signals where the feedback signal indicates the observed rate of voltage change on the load. The circuit is further comprised of a load driver circuit that is operated by the control signals and provides a slew-rate controlled output voltage used to operate a load switch, where the load switch provides power to the load. The circuit is configured to operate the load switch using a slew-rate controlling driver, depending on the state of the load switch transition, and a non-controlling driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.