Feedback control for efficient high-speed battery charging
US10243457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Nov 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage regulator system, comprising: a switched capacitor (SC) regulator that operates at a switching frequency and receives an input voltage; and a controller configured to control an operation of the SC regulator by adjusting the switching frequency of the SC regulator based on efficiency. In some embodiments, the switching frequency is swept to determine a best efficiency. In some embodiments, the switching frequency is swept at each of a plurality of values for the input voltage. In some embodiments, the system includes further one or more switches in series with the SC regulator. In some embodiments, the SC regulator includes an output terminal that is coupled to a battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.