Systems and methods for monitoring high charge levels in rechargeable batteries
US12149106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2024 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jan 5, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An indexed sequence of bits in a buffer is allocated for tracking a battery charging state. The indexed sequence of bits has a first number of bits. A battery voltage of a rechargeable battery is sampled at a sampling rate. For each sampled battery voltage, the battery voltage is compared with a voltage threshold. A next bit position in the indexed sequence of bits is identified. In accordance with a determination that a comparison result is true, a predefined first value is added to the next bit position. A second number of bits that are filled with the predefined first value is determined. A ratio between the second number and the first number is also determined. In accordance with a determination that the ratio exceeds a threshold step-down ratio, a battery charge voltage is stepped down. The rechargeable battery is charged to a step-down voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.