Smart battery, secondary smart battery connection apparatus of portable computer system, AC adapter implementing same, and connection method thereof
US6509717B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jul 26, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An smart battery apparatus for connecting a smart battery to a portable computer system includes a primary smart battery and a secondary smart battery, each having a first connector and a second connector installed at an exterior for connecting the secondary smart battery to the primary smart battery. A smart battery selecting unit is also included for selecting the primary smart battery or the secondary smart battery and controlling the selected battery so as to supply power to a portable computer system. A system power supply unit supplies the power selected by the smart battery selecting unit and appropriate power for operating the system. A SM BUS (System Management Bus) host is checking operation states or operation information of both smart batteries and requesting a charge state of each smart battery. An AC/DC adapter receives AC power from an AC power source and outputs DC power, and a charging unit receives the DC power from the AC/DC adapter and supplies power to change the primary smart battery or the secondary smart battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.