Multi-information source shared audio circuit special for display control all-in-one personal computer

Abstract

The invention relates to a circuit structure, in particular to a multi-information source shared audio circuit special for a display control all-in-one personal computer. The multi-information sourceshared audio circuit comprises a main control chip, a communication module, an audio module, earphone interfaces and loudspeaker interfaces, wherein the communication module and the audio module are connected to the main control chip, and the earphone interfaces and the loudspeaker interfaces are connected to the communication module and the audio module through audio signal channels; and the communication module and the audio module are connected to the input ends of the audio signal channels in parallel, the earphone interfaces and the loudspeaker interfaces are connected to the output endsof the audio signal channels in parallel, the control end of the main control chip is connected with the audio module, the signal receiving end of the main control chip is connected with the communication module, and an audio power amplifier chip is arranged between the audio signal channels and the loudspeaker interfaces. According to the multi-information source shared audio circuit, by adoptingmulti-audio signal shared earphone and audio power amplifier loudspeaker technologies, the function that the display control all-in-one personal computer can broadcast designated voice is achieved, the requirement that more audio modules broadcast audio signals can be met, operation is convenient, the labor intensity of workers is reduced, the production efficiency can be guaranteed, and the costcan be effectively reduced.

Description

technical field [0001] The invention relates to a circuit structure, in particular to an audio circuit shared by multiple sources of a display control all-in-one machine. Background technique [0002] At present, most display and control all-in-one machines (referred to as industrial PCs) do not have built-in speakers, and cannot broadcast specified content by voice. Workers need to keep their eyes on the display screen, which is very inconvenient to operate. Not only is the labor intensity of workers high, but it will also affect production efficiency. To separately install the voice broadcasting equipment, the production cost will be increased. Contents of the invention [0003] In order to solve the defects and deficiencies in the above-mentioned prior art, the present invention provides a technology that uses multiple audio signals to share earphones and audio power amplifier speakers, and realizes the function that the display control integrated machine can broadcast ...

AI Technical Summary

Problems solved by technology

[0002] At present, most display and control all-in-one machines (referred to as industrial PCs) do not have built-in speakers, and cannot broadcast specified content by voice. Workers need to keep their eyes on the display screen, which is very inconvenient to operate. Not only is the labor intensity of workers high, but it will also affect production efficiency. To install voice broadcast equipment separately, it will increase the production cost

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