Voltage-to-time converter, and voltage-to-digital converting device having the same
US7916064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2009 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jun 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage-to-digital converting device includes a first voltage-to-time converter outputting a first delay clock having a first time delay relative to a reference clock in response to an input voltage, and a second voltage-to-time converter outputting a second delay clock having a second time delay relative to the reference clock in response to a feedback voltage. The first and second time delays correspond respectively to the input and feedback voltages. A time-to-digital converting circuit receives the first and second delay clocks from the first and second voltage-to-time converters, compares phases of the first and second delay clocks, generates the feedback voltage based on result of phase comparison made thereby, and outputs a digital signal upon detecting that the phases of the first and second delay clocks are in-phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.