Power supply circuit with power saving capability
US5737616A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/325
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A power supply circuit efficiently saves electric energy consumed by a central processing unit and a peripheral assembly through coordination between power supply modes of the central processing unit and the peripheral assembly. The central processing unit has a register for establishing a status of an internal power supply of the central processing unit, a first mechanism for changing the internal power supply into the status established by the register, and a second mechanism for outputting a status signal indicative of the status. The peripheral assembly having a peripheral circuit, a peripheral device, and a power supply control block for changing power supply statuses and clock statuses of the peripheral circuit and the peripheral device based on the status signal outputted from the second mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.