Digitally controlled voltage generator
US9224351B1 · kind B1 · utility
1Cited by
7References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2015 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Apr 13, 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.