Transformer less battery charger system
US9843206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2015 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transformer less battery charger system. In one embodiment, the battery charger system includes input terminals for receiving an AC voltage, output terminals for receiving terminals of a rechargeable battery pack, and a non-isolated DC-DC converter coupled between the input terminals and the output terminals. A device is also coupled somewhere between the input terminals and the output terminals. The device is configured to selectively and indirectly couple the input terminals to the output terminals. More particularly, the device indirectly couples the input terminals to the output terminals when the rechargeable battery pack terminals are received by the output terminals, and the device indirectly decouples the input terminals from the output terminals when the rechargeable battery pack terminals are separated from the output terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.