Buffer amplifier structures with enhanced linearity
US6778013B1 · kind B1 · utility
13Cited by
13References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/168
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Buffer amplifiers are provided with a replica current generator that supplements a buffer transistor and is configured to provide a replica current which substantially equals required load currents in the amplifier's output load. Because the current of the buffer transistor remains constant, its base-emitter voltage Vbe remains constant and the amplifier linearly reproduces the input signal Sin across the output load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.