Programmable auto-converting analog to digital conversion module
US6559783B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Aug 16, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1225
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and device automatically convert a plurality of analog input channels using a single analog to digital conversion circuit. The device includes a multiplexer, an analog to digital conversion circuit and a configurable channel controller. The multiplexer has at least two analog input channels. The multiplexer also has control inputs and an output. The analog to digital conversion circuit is coupled to the output of the multiplexer and a clock signal. The analog to digital conversion circuit outputs a conversion value based on a voltage associated with the output of the multiplexer in successive clock cycles. The configurable channel controller outputs a control signal to the control inputs of the multiplexer to automatically select successive ones of the at least two analog input channels for conveying to the analog to digital conversion circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.