Battery string performance measurement
US7772852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Sep 21, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/386
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A DC power supply system in which the resistance of a battery is measured. The voltage of the DC power supply is reduced such that the battery supplies some current to the load, and the voltage and current are measured. The voltage of the DC power supply is further reduced such that the battery supplies increased power to the load, and the voltage and current are measured. A resistance value is computed, and may be compared with various pre-established criteria. The battery resistance may also be measured by comparing the charging time of a known resistive-capacitive circuit with the charging time established at a prior measurement epoch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.