Electronic devices having complementary current mirror circuitry
US12228952B2 · kind B2 · utility
0Cited by
45References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2022 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Aug 18, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2210/025
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic device may include wireless circuitry having digital-to-analog converters, filters, mixers, and current buffers disposed between the filters and the mixers. The current buffers may provide proper resistance termination for the filters. The current buffers may include current mirrors formed from diode-connected n-type transistors and diode-connected p-type transistors, which collectively provide a linear input resistance. The current mirrors may receive a high voltage from a voltage regulator having a replica current mirror and proportional-to-absolute-temperature current sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.