Feedback controlled power limiting for signal amplifiers
US7733174B2 · kind B2 · utility
2Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2008 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G11/002
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus is provided. The apparatus includes an amplifier, differential amplifiers, and FETs. The amplifier has an intermediate node and an output node, and the amplifier is adapted to receive an audio signal. Each differential amplifier amplifies the difference between an output voltage from the output node with a reference voltages. The FETs are coupled in series with one another between a first and a second voltage, and each FET receives an output from at least one of the differential amplifiers. Additionally, the intermediate node is coupled to a node between at least two FETs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.