Circuit for securing output distortion, in particular of final stages of audio devices
US5068620A · kind A · utility
9Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Nov 1, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3217
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for sensing the output distortion of amplifier stages of the type which has a first input which receives a voltage signal to be amplified, a second input connected to a feedback network and an output which generates an amplified output signal. The circuit comprises at least one comparator, which receives in input a first signal which is correlated to the voltage signal and a second signal which is correlated to the output signal of the amplifier stage, and is enabled so as to generate a distortion signal in output when the second signal exceeds the first one in terms of absolute value, i.e. in the presence of distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.