Switched gain amplifier circuit
US6724252B2 · kind B2 · utility
131Cited by
38References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7227
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier chain that switches between a saturated mode of operation and a linear mode of operation comprises at least two amplifier stages. A switch is associated with the first amplifier stage and dampens the gain of the amplifier chain when the switch is closed. In a first embodiment, this is done by bypassing the first amplifier stage. In second and third embodiments, this is done by providing a feedback loop to the first amplifier stage. Dynamic device scaling and changing the bias may also be used to affect the performance of the amplifier chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.