Ring oscillator and method for controlling start-up of ring oscillator
US10917076B1 · kind B1 · utility
1Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Mar 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0094
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A ring oscillator includes at least one oscillator stage having a first output and a second output and a start-up circuit. The start-up circuit includes a plurality of AC coupling capacitors receiving the first output and the second output, and a plurality of switches connected to the AC coupling capacitors. The start-up circuit is configured to provide a differential start-up voltage to at least one node of the oscillator using the plurality of switches and the AC coupling capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.