Embedded speaker protection for automotive audio power amplifier
US10050595B2 · kind B2 · utility
0Cited by
11References
20Claims
0Family size
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Key dates
| Filing date | Oct 3, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Oct 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit can be used in a speaker system. The circuit includes an amplifier with an output configured to be coupled to a speaker. An offset comparator has an input coupled the output of the amplifier and is configured to provide an offset control signal. A digital circuit has a first input coupled to an output of the offset comparator, a second input configured to receive an amplifier control signal, a third input configured to receive a play control signal, and an output configured to provide a forced mute signal that can be used to control the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.