Hybrid battery charger/tester
US11163006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2017 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Aug 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/392
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hybrid battery charger-testing device is described being a modification of a battery charger having a DC output stage, and a boost converter added to the DC output stage of the charger, the boost converter being configured to output pulses and/or a continuous AC wave for testing a battery. The hybrid charger can be used to output a purely AC test wave, e.g. sinusoidal wave for an electrochemical impedance spectroscopy test, to output pulses such as HPPC pulses and/or to perform GITT or incremental charge tests. For example, determination of battery parameters by diagnostic testing can be achieved by combining the existing functionality of a battery charger with test procedures involving currents much lower than used during charging of the battery or of returning battery energy to the electricity grid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.