Univerally adaptable multi-function portable power supply unit for ac/dc conversion which including backup battery and battery charger
US5689412A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Apr 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention is a multi-function power supply, i.e., a power-mate unit, for providing DC input to a portable electronic device, e.g., a notebook computer, operable with a rechargeable battery. The power-mate unit includes an AC plug for electrically connecting to an AC power source for receiving the AC input current. The power-mate unit further includes an AC/DC power supply for converting the AC input current to an external DC operation current suitable for operating the portable electronic device. The power-mate unit further includes a backup battery pack connected to the AC/DC power supply for receiving a backup battery charging current for charging the backup battery pack wherein the backup battery pack further providing a backup DC current to the portable electronic device. The power-mate unit further includes a backup battery monitoring and display for continuously monitoring a charge capacity of the backup battery pack and for displaying the charge capacity. And, the power-mate unit further includes an electronic device plug-in jack for electrically connecting the power-mate unit to the electronic device for providing the external DC operation current and the backup DC cur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.