Connecting multiple batteries to battery powered devices
US5621301A · kind A · utility
38Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Sep 27, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit for serially connecting multiple batteries to a battery-powered device such as a notebook computer or camcorder so that the device will serially charge or discharge the batteries. The device includes at least two controllable switch circuits for selectively connecting batteries to the battery-powered device, a power flow sensor for sensing power flow from the device to the selected battery or vice-versa, and a selector circuit for sequentially enabling the switch circuits to sequentially connect the batteries to the battery-powered device so that the batteries will sequentially charge or discharge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.