Automobile active noise reduction and audio power amplification integrated system
An audio power and active noise reduction technology, applied in transmission systems, digital transmission systems, sound-generating devices, etc., can solve problems such as engine noise reduction, increased vehicle weight, and inability to reduce road noise, so as to reduce the development cycle and improve flexibility , Road noise reduction effect
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[0029] The invention relates to an integrated system of automobile active noise reduction and audio frequency power amplification. The system realizes the automobile active noise reduction function and the audio frequency power amplification function simultaneously by designing a set of systems. The active noise reduction function of the car includes the engine noise reduction function and the road noise reduction function. Engine noise refers to the noise transmitted to the interior of the car when the engine is running; road noise refers to the noise transmitted to the interior of the vehicle through the tires when the vehicle is moving on the road.
[0030] figure 1 Block diagram of an integrated system for automotive active noise reduction and audio power amplification, according to figure 1 As shown, the system of the present invention mainly includes:
[0031] 1. Main control chip and auxiliary circuits (such as power supply circuit, memory, debugging circuit, etc.); ...
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