Implementing dual speed level shifter with automatic mode control
US8751982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Dec 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and circuit for implementing a dual speed level shifter with automatic mode control, and a design structure on which the subject circuit resides are provided. A low speed level shifter and a high speed level shifter are used to provide a wide frequency range of operation. The circuit operates in one of a low speed mode or a high speed mode. The appropriate mode is selected automatically by detecting the frequency of the signal to be level shifted. When the incoming signal is slower than a reference frequency, the low speed level shifter is selected, and when the incoming signal is faster than the reference frequency, the high speed level shifter is selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.