Discharge balancing device, discharge balancing method, and power supply system
US9837833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge balancing device, for balancing a plurality of electric energy storage units connected in series in a discharge stage, comprising a plurality of bypass units, respectively connected to the plurality of electric energy storage units in parallel, configured to drain bypass currents from the plurality of electric energy storage units according to control signals; an energy condition measurement circuit, coupled to the plurality of the electric energy storage units, configured to measure energy conditions of the plurality of electric energy storage units; and a balancing control unit, coupled to the energy condition measurement circuit and the plurality of bypass units, configured to generate each of the control signals according to the energy conditions measured by the energy condition measurement circuit, so as to control each of the plurality of bypass units whether to drain a bypass current from a corresponding electric energy storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.