Portable power supply unit providing backup battery, battery charger, and universal adapter
US5783927A · kind A · utility
35Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1995 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Sep 28, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention discloses a power supply unit for providing DC input to a portable electronic device which is operable with a rechargeable battery and an AC/DC adapter receiving power from an AC power source. The power supply unit includes a set of DC jacks of different sizes for connecting to the AC/DC adapters to receive a DC input voltage. The power supply unit further includes a backup battery pack for providing input voltage to the portable electronic device. The power supply unit further has a charging circuit for charging the rechargeable battery for the electronic device and the backup battery pack of the power supply unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.