Auxiliary power device and user system including the same
US9013944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Oct 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A user system is provided which includes a storage device and an auxiliary power device configured to supply a power to the storage device, wherein the auxiliary power device includes a first one direction device configured to supply a supply voltage from an external power supply to the storage device, a charging unit configured to be charged by the external power supply, a second one direction device configured to selectively supply an output voltage of the charging unit to the storage device, a voltage detector configured to detect a level of the output voltage of the charging unit and to output a first control signal to the storage device, and a switching unit connected between the charging unit and the second one direction device and configured to operate in response to a second control signal from the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.