Digital-analog conversion method and device
US9774338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jun 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a digital-analog conversion method and device for adjusting a reference current to be used in a digital-analog conversion, by using a common mode feedback device, and the digital-analog conversion method of the present invention comprises the steps of: generating a reference current by receiving a reference voltage; converting a digital signal into an analog signal by receiving the generated reference current; detecting a common mode voltage, which is the average value of a both-end voltage of the converted analog signal; comparing the detected common mode voltage with the reference voltage; generating a feedback signal on the basis of the comparison result; and adjusting the reference current according to the generated feedback signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.