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audio differential circuit

A differential circuit and audio technology, applied in the direction of transducer circuits, electrical components, sensor components, etc., can solve the problems of differential signal instability and large interference, and achieve the effect of maintaining stability, reducing signal interference, and high sound quality

Active Publication Date: 2020-02-18
SHENZHEN ATTE INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above situation, it is necessary to provide an audio differential circuit for the problem of unstable differential signal and large interference in the prior art

Method used

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Embodiment Construction

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing the embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only. ...

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Abstract

The invention provides an audio differential circuit comprising two audio differential balance circuits connected in parallel, wherein each audio differential balance circuit comprises an audio signalinput circuit and an audio power amplifier connected with the audio signal input circuit, each audio differential balance circuit further comprises two differential signal output circuits connected with two output ends of the audio power amplifier and a differential signal feedback circuit connected with the two differential signal output circuits, the differential signal feedback circuit comprises a first feedback circuit and a second feedback circuit, one end of the first feedback circuit and one end of the second feedback circuit are respectively connected with the two differential signaloutput circuits, and the other end of the first feedback circuit and the other end of the second feedback circuit are respectively connected with an audio playing module. The audio differential circuit in the embodiment of the invention can output stable differential signals and minimize the signal interference to meet the requirements of high sound quality.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to an audio differential circuit. Background technique [0002] With the improvement of people's living standards, electronic products with increasingly rich functions have become more and more popular, bringing great convenience to users' lives. During the use of electronic products, the audio playback function is an important function of electronic products, and people have higher and higher requirements for audio playback effects. [0003] In order to reduce signal interference and improve the signal-to-noise ratio of the amplifier system, audio signals are generally transmitted differentially. However, in the existing differential signal transmission process, the differential signal may be too large or too small, and its stability is poor, which affects the sound effect. Although the differential transmission of audio signals reduces interference to a certain exten...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
Inventor 代宇峰沈澈李辉王云华
Owner SHENZHEN ATTE INTELLIGENT TECH CO LTD