Circuit for limiting temperature without distortion in audio power amplifiers
US5107389A · kind A · utility
8Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | May 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/447
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for limiting temperature without distortion in audio power amplifiers, comprising a temperature sensor for sensing the temperature in an audio power amplifier, and a variable-gain amplifier connected ahead of the audio power amplifier circuit and having a gain control input connected to the temperature sensor to vary the input signal of the audio amplifier in a linear manner. A linear limitation of the power, and therefore of the temperature, is thus obtained in the audio amplifier without introducing distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.