Method and apparatus for adjusting the power supply voltage provided to a microprocessor
US5694028A · kind A · utility
5Cited by
1References
5Claims
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Assignee
Inventors
Key dates
| Filing date | May 20, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | May 20, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/465
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and apparatus for adjusting power supplied to a device when the device has a first and a second power input. A first voltage level and a ground potential are provided and a second voltage level is created as a function of the first voltage level. The second voltage level is then buffered with a power transistor and, if the second voltage level is needed for a particular device, the buffered second voltage level is selectively applied to the device. The circuit is disabled when the second voltage supply is not needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.