Embedded speaker protection for automotive audio power amplifier
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United States of America Patent
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Oct 24, 2017
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N/A
app pub date -
Nov 18, 2016
filing date -
Dec 30, 2011
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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.
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