Adaptive voltage scaling power supply for use in a digital processing component and method of operating the same
US6548991B1 · kind B1 · utility
41Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2002 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jan 19, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/613
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
There is disclosed an adaptive voltage power supply that finely adjusts VDD to an optimum level. The adaptive voltage power supply comprises: 1) a first charging circuit capable of increasing a reference voltage on a charge capacitor in response to receipt of a first VDD control signal; 2) a second charging circuit capable of decreasing the reference voltage on the charge capacitor in response to receipt of a second VDD control signal; and 3) a power supply capable of receiving the reference voltage on the charge capacitor and generating an output power level, VDD, determined by a level of the reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.