Computer having a dual mode power supply for implementing a power saving mode
US6092207A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1997 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Dec 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3215
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer includes a dual mode power supply that includes a main voltage converter and a standby voltage converter. The main voltage converter generates a main operating voltage at a normal operating current. The standby voltage generator generates a standby voltage at a standby current. The power supply outputs a dual mode output that includes both the main voltage and the standby voltage. The standby current is less than the normal operating current. The computer includes a host processor, a memory array, and a wake-up device. A power management device is coupled to the host processor and receives at least the standby voltage. The dual mode output from the power supply is input to the wake-up device and the memory array to allow the computer to be placed in a power saving mode by terminating supply of the main voltage. While in the power saving mode and receiving only the standby voltage, the wake-up device can wake-up the computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.