Systems and methods for supplying different voltage levels with shared current
US10211815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Mar 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0315
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated circuit includes a first portion of a stacked ring oscillator coupled between a first supply voltage node and a common node, wherein the first supply voltage node provides a local supply voltage for the first portion and the common node provides a local ground for the first portion. The integrated circuit includes a second portion of the stacked ring oscillator coupled between the common node and a second supply voltage node wherein the common node provides a local supply voltage for the second portion and the second supply voltage node provides a local ground for the second portion. The integrated circuit also includes a voltage divider having a first resistive element coupled between the first supply node and the common node and a second resistive element coupled between the common node and the second supply node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.