Class AB operational buffer
US7358812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Jun 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45192
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A class AB operational buffer comprises an output stage, a voltage supply circuit to provide a first voltage and a second voltage to drive the output stage, a first current source to provide a first current, a second current source to provide a second current, a first current mirror having a first reference branch coupled with the first current and a first mirror branch coupled with the second current through the voltage supply circuit, and a second current mirror having a second reference branch coupled between the second current source and first mirror branch and a second mirror branch coupled between the first current source and first reference branch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.