Digitally controlled voltage generator
US9478188B1 · kind B1 · utility
3Cited by
8References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2015 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Dec 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0876
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digitally controlled voltage generator is disclosed for use in applications requiring fine resolution voltage control, such as generating a common voltage for a liquid crystal display. A constant resistance digital to analog converter (DAC) is configured to provide appropriate voltage steps by tuning bias resistors to generate desirable reference voltages for the DAC. The bias resistors are configured to be tuned after placement and routing steps in an integrated circuit design.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.