Determination of inductor current during reverse current in a boost converter
US9912238B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2014 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jan 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/004
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
During operation of a boost converter conditions may exist that result in a reverse current through the boost converter, such as when a load drop from the boost converter occurs. During the reverse current period, inductance value determinations made during a forward current period may be used to estimate a magnitude of the reverse current and this estimate used by a controller to control the boost converter and return the boost converter to normal operation. The controller may control the boost converter by changing a ratio of charging and discharging time for an inductor of the boost converter, decreasing a bandwidth of the boost converter, and/or increasing a resistance of the boost converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.