Class-AB output stage
US8493150B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/3022
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An output stage of a class-AB amplifier, including: a first transistor of a first channel type between a first terminal of application of a first voltage and an output terminal of the stage, having its gate connected to a first input terminal of the stage; a first transistor of a second channel type between this output terminal and a second terminal of application of the first voltage, having its gate connected to a second input terminal of the stage; and second and third transistors of the second channel type between the output terminal and the first transistor of the second channel type, the gate of the second transistor being connected to the midpoint of a resistive dividing bridge between said output terminal and the gate of the third transistor of the second channel type, and the gate of the third transistor being biased to a fixed voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.