Autonomous adapter pass through mode for buck-boost battery charger
US11205915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Dec 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to certain aspects, the present embodiments are related to systems and methods providing an autonomous adapter pass through mode in a battery charger. For example, when an adapter is connected to the battery charger, but the system is idling, embodiments allow for power from the adapter to be directly coupled to the battery charger output, and main switching to be stopped, thereby dramatically reducing battery charger current consumption. These and other embodiments provide various circuitry and techniques to ensure that the battery is protected in this mode. According to further aspects, the present embodiments provide for the charger itself to autonomously enter and exit the adapter pass through mode, thereby eliminating the need for excessive processing overhead in components external to the battery charger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.