Amplifying circuit having a pull-up circuit and a pull-down circuit for increasing slew rate
US7449952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2007 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Jul 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45248
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifying circuit includes an operational amplifier, a pull-up circuit and a pull-down circuit. The operational amplifier generates a first pull-up signal, a first pull-down signal and an output signal, wherein the phases of the first pull-up signal and the first pull-down signal are out of phase with the output signal. The pull-up circuit includes a first controlling module for outputting a second pull-up signal according to the first pull-up signal, and a first adjusting module for adjusting the output signal according to the second pull-up signal. The pull-down circuit includes a second controlling module for outputting a second pull-down signal according to the first pull-down signal, and a second adjusting module for adjusting the output signal according to the second pull-down signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.