Output stage of a power amplifier having a switched-bulk biasing and adaptive biasing
US8624678B2 · kind B2 · utility
32Cited by
58References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45394
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier (PA) using switched-bulk biasing to minimize the risk of output stage snapback effect is disclosed. An adaptive biasing of the output stage prevents device breakdown while accommodating large voltage swings. These protection techniques can be applied to all types of cascode configurations of a PA, including single-ended, differential, quadrature, segmented and any combination thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.