Power supply device and method
US12328016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2023 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Aug 3, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/342
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply device includes a first battery and a second battery, and a first switching unit, configured to select the first battery to supply power to a load; a second switching unit, configured to select the second battery to supply power to the load; a processing unit, configured to detect power of the first battery and the second battery; when the power of the second battery is greater than a first preset value, the processing unit disconnects the first switching unit and turns on the second switching unit to enable the second battery to supply power to the load; the processing unit controls the second battery to charge the first battery when the power of the first battery is less than a second preset value; and when the power of the first battery is greater than a third preset value, the second battery stops charging the first battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.