Programmable DC voltage generator
US6914548B2 · kind B2 · utility
0Cited by
8References
31Claims
0Family size
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Key dates
| Filing date | Apr 30, 2001 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Feb 16, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An efficient technique for generating accurate on-chip DC reference voltages is based on filtering a digital pulse modulated sequence in order to extract its average value encoding a DC level, A passive on-chip filter is used for simplicity with an all-digital modulator implementation. Modulation is proposed using pulse-width and preferably pulse-density modulation methods. The latter has the advantage of using a significantly smaller filter which translates into a smaller implementation and faster operational settling times. Many digital pulse modulation generators are proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.