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Audio power amplifier integrated circuit and audio equipment

An audio power amplifier circuit and integrated circuit technology, applied in the field of audio power amplifier integrated circuits and audio equipment, can solve the problems of poor power amplifier effect and low integration, and achieve the effects of improving driving capability, power amplifier driving voltage protection, and comfortable hearing experience.

Pending Publication Date: 2020-12-04
SHENZHEN NSIWAY TECH
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Problems solved by technology

[0004] The purpose of this application is to provide an audio power amplifier integrated circuit and an audio device, aiming to solve the technical problems of low integration and poor power amplifier effect in the traditional audio power amplifier method due to external power supply

Method used

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  • Audio power amplifier integrated circuit and audio equipment
  • Audio power amplifier integrated circuit and audio equipment
  • Audio power amplifier integrated circuit and audio equipment

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Embodiment Construction

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0042] It should be noted that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

[0043] see figure 1 , is a schematic diagram of a structural ...

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Abstract

The invention discloses an audio power amplifier integrated circuit and audio equipment. The audio power amplifier integrated circuit is used for amplifying an audio signal output by an audio source to drive an audio load. The audio power amplifier integrated circuit comprises a power supply circuit, an audio power amplifier circuit and an adaptive circuit. The power supply circuit is used for outputting a power supply voltage. The audio power amplifier circuit is connected with the power supply circuit and the audio load, and is used for receiving the power supply voltage and then working, amplifying the audio signal and then outputting a power amplifier signal to drive the audio load. The adaptive circuit is connected with the power supply circuit and the audio power amplifier circuit and is used for sampling the audio signal and increasing the power supply voltage when the amplitude of the audio signal is greater than a set threshold. The technical problems of relatively low integration level and relatively poor power amplifier effect caused by external arrangement of a power supply in a traditional audio power amplifier method are solved.

Description

technical field [0001] The present application relates to the technical field of electronic circuits, in particular to an audio power amplifier integrated circuit and an audio device. Background technique [0002] With the continuous advancement of semiconductor technology, analog signals are often quantized and encoded into digital signals for storage and transmission. In the field of analog audio, the sound signal will be sampled and converted into a digital signal through an analog-to-digital converter. To restore the sound signal, it will be converted into an analog signal through a digital-to-analog conversion circuit, and the sound signal can be obtained after filtering. Usually, the driving ability of the analog-to-digital converter is relatively weak, and the power of the audio signal needs to be amplified before the multimedia device can be driven. In order to output louder sound, the audio equipment needs to continuously increase the voltage at the power output te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/187H03F3/213
CPCH03F3/187H03F3/213
Inventor 施乐付凌云顾浩浩
Owner SHENZHEN NSIWAY TECH
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