Embedded speaker protection for automotive audio power amplifier

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United States of America Patent

PATENT NO 9532142
SERIAL NO

15158854

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Abstract

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A digital circuit can be used in a speaker system. An intermediate node provides a speaker protection control signal. A first latch for receives an offset control signal. A first logic gate receives a play control signal, the offset control signal, and the speaker protection control signal. A second logic gate is coupled to the first latch for receiving the play control signal and the speaker protection control signal. A second latch is coupled to the first logic gate for providing a forced mute signal. A third latch is coupled to the second logic gate and to the intermediate node.

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Patent Owner(s)

  • STMICROELECTRONICS (SHENZHEN) R&D CO. LTD;STMICROELECTRONICS S.R.L.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, XiangSheng Shenzhen, CN 15 24
Meroni, Cristiano Milan, IT 12 31
Xiong, Xian Feng Shenzhen, CN 4 1
Yang, Mei Shenzhen, CN 61 650

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