Controlling energizing range of mobile electronic device
US9874912B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2014 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Sep 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/263
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An energization range of a laptop PC is controlled for safety component replacement. An EC can communicate with a battery unit to control a FET of the battery unit. In a power-off state, a PWC receives electricity from the battery unit or an AC/DC adapter. In the power-off state, a system of the EC stops. When a housing cover of the laptop PC is opened, a cover switch turns ON. When a logic circuit detects the operation of the cover switch, the PWC controls a DC/DC converter group to activate the system. The EC receiving electricity turns the FET OFF. Then the PWC turns the FET OFF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.