Battery balancing and current control with bypass circuit for load switch
US10992144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Nov 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit provides for regulating charge and discharge current of a battery. A bypass circuit is connected to a terminal of the battery and connected in parallel with a load switch. The bypass circuit may selectively direct a bypass current around the load switch. A controller can operate in plural modes to control the bypass circuit. In a first mode, the controller controls one or more parameters of the bypass current based on values corresponding to a current at the terminal, a voltage at the terminal, and/or a temperature of the battery. In a second mode, the controller controls the bypass circuit to disable the bypass current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.