Droop detection for low-dropout regulator
US9946278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Nov 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/125
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A processor system includes first and second regulators for regulating an adjusted supply voltage. In one embodiment, the regulator system comprises a digital low-dropout (DLDO) control system comprising first and second regulators that generate a plurality of control signals to regulate an adjusted power supply voltage and that generate a charge when a droop level falls below a droop threshold value. The first regulator implements a first control loop and the second regulator implements a second and much faster acting control loop. A supply adjustment block with the two regulators and control loops are provided for each processor core allowing different cores to have different regulated supply levels all based on one common supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.