Anti-pop method and apparatus for class AB amplifiers
US7777569B2 · kind B2 · utility
0Cited by
12References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2009 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45726
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for actuating an amplifier to generally eliminate a pop is provided. Accordingly, a plurality of current sources is actuated in an input stage, and a plurality of bias voltages are applied to the input stage. After a predetermined period after the step of applying a plurality of bias voltages to the input stage and the step of actuating a plurality of current sources in an input stage, a control circuit is actuated, and a transistor within a control amplifier stage is turned on at a predetermined rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.