Slew rate adjusting circuit and slew rate adjusting method
US10374586B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Sep 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00019
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A slew rate adjusting circuit includes: a variable delay unit configured to delay an output of a signal source in response to a first control signal; an output buffer unit configured to adjust a slew rate in response to a second control signal; a differential buffer unit configured to compare the resulting signal output from the output buffer unit with a reference voltage; a first phase comparison unit configured to compare a phase of the output of the signal source with a phase of a signal; a first count unit configured to count the signal output from the first phase comparison unit and output the first control signal; and a second count unit configured to count the signal output from the second phase comparison unit and output the second control signal based on a count result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.