System to accelerate settling of an amplifier
US7142057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2005 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Jul 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45432
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method are used to accelerate settling or steady state of an amplifier in an amplifier system. This is used to ensure the amplifier reaches steady-state within a specified time period from stand-by or another state without using more current than is needed for steady-state. A comparator in a common-mode feedback system compares a desired amplifier output signal to one or more nodes of the amplifier. A result of the comparison is compared to a threshold value using a comparator in a settling acceleration system. If the result crosses the threshold, a controller turns on a driver in the settling acceleration system. The driver pulls on one or more nodes of the amplifier, which, along with a driver in the amplifier system pulling on the node, quickly brings the amplifier to settling or steady state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.