Power management system having charging control unit and power switching control unit
US8482260B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2009 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | May 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power management system is described. The power management system includes an input power selecting unit, a charging control unit and a power switching control unit. The input power selecting unit receives a plurality of input power sources for selecting one of the input power sources to be inputted to the electronic apparatus. The charging control unit includes a charging controller and a battery. The charging controller receives a charge-enabling signal. The battery is charged by a second voltage and selectively supplies a battery power. The power switching control unit outputs a driving voltage to drive the electrical apparatus based on an adaptor-enabling signal and a power-detecting signal when the power switching control unit switches the input power sources and the battery power to select one of the input power sources and the battery power. The power switching control unit actuates the charging control unit by the adaptor-enabling signal and a system-enabling signal for charging the battery by the second voltage generated from one of the input power sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.