Multi-stage amplifier including a pre-driver stage
US11152899B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jan 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/5003
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multi-stage amplifier including a pre-driver stage, and method of operating the same. In one example, the amplifier includes an output stage with a first output transistor coupled to an oppositely doped second output transistor and to an output terminal. The pre-driver stage includes with a first driver transistor coupled to the first output transistor, and a second driver transistor coupled to the second output transistor. The pre-driver stage also includes a first current mirror and a second current mirror coupled to the first driver transistor and the second driver transistor. The pre-driver stage also includes a first translinear loop having a first translinear loop transistor and a second translinear loop having a second translinear loop transistor coupled to the first output transistor and the second output transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.