Analog/digital conversion circuit
US9606511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2016 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Mar 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/164
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a first AD converter converts a first voltage into a first digital signal. A voltage/time conversion circuit acquires a residual corresponding to a difference between the first voltage and a result of having converted the first digital signal into an analog signal and converts the residual into a time signal according to a voltage in a first capacitor. A time/voltage conversion circuit converts the time signal into a voltage signal according to a voltage in a second capacitor. A second AD converter converts the voltage signal into a second digital signal. A digital processing circuit outputs a third digital signal to adjust a current value of first or the second current sources based on the second digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.