Power gating switch tree structure for reduced wake-up time and power leakage
US11676897B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 2021 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Jul 10, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An aspect relates to an apparatus including a first and second power rails; a first set of power switch cells coupled to the first and second power rails, the first set of power switch cells being cascaded from an output to an input of a control circuit; and a second set of power switch cells coupled to the first and second power rails, the second set of power switch cells being coupled to one of a pair of cells of the first set, the first output, and the first input of the control circuit. Another aspect relates to a method including propagating a control signal via a first set of cascaded power switch cells to sequentially couple a first power rail to a second power rail; and propagating the control signal via a second set of power switch cells coupled between a pair of cells of the first set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.