Pulse-drive resonant clock with on-the-fly mode change
US9618966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Aug 18, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A pulse-drive resonant clock with on-the fly mode changing provides robust operation in a resonant clock distribution network, in particular for processor circuits having a dynamically-varied operating frequency. The clock drivers for the resonant clock distribution network include a pulse width control circuit having selectable operating modes corresponding to multiple clocking modes of the resonant clock distribution network. The pulse width control circuit includes a delay line that has a selectable delay length to provide pulse enable signals that control the pulse widths of the clock drivers in a sector of the resonant clock distribution network. The delay line responds to a mode control signal so that at least one pulse width of the output is changed from a first pulse width to a second pulse width without generating half-cycles with a pulse width narrower than the first or second pulse width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.