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Vehicle-mounted audio system and audio line switching circuit

A technology for switching circuits and audio lines, which is applied in the direction of transducer circuits, electrical components, sensors, etc., can solve the problems of long time consumption, inconvenient operation, and low efficiency, and achieve simple operation, clear contrast effect, and convenient use Effect

Inactive Publication Date: 2019-10-11
广州市车厘子电子科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] After the original car audio system is refitted and upgraded, how to judge that the refitted sound effect is better than the original car sound effect? The existing technology needs to connect the refitted circuit back to the original car audio for listening comparison. This method is clumsy, inconvenient to operate, takes a long time and is inefficient

Method used

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  • Vehicle-mounted audio system and audio line switching circuit
  • Vehicle-mounted audio system and audio line switching circuit
  • Vehicle-mounted audio system and audio line switching circuit

Examples

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Embodiment 1

[0042] see Figure 1-5 shown.

[0043] The audio line switching circuit of this embodiment mainly includes: a power supply circuit 101 , a wireless control circuit 102 , and a relay circuit 103 .

[0044] Wherein the power supply circuit 101 is electrically connected to the power supply voltage input end of the wireless control circuit 102, and provides the power supply voltage to the wireless control circuit 102, and the wireless control circuit 102 includes a wireless interface ( Figure 4 Not shown), the control circuit 1021, the wireless interface accesses the external wireless control signal D2, and the control circuit 1021 outputs the control signal MUSIC-SELO-6C to the control terminal of the relay circuit 103 under the trigger of the wireless control signal D2, and the relay circuit 103 Triggered by the control signal MUSIC-SELO-6C to switch:

[0045] Specifically, see Figure 5 As shown, the relay circuit 103 includes multiple sets of contacts, and each set of cont...

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Abstract

The invention relates to the field of automotive electronics, and discloses a vehicle-mounted audio system and an audio line switching circuit. The audio line switching circuit comprises: a power supply circuit used for providing power supply voltage for a wireless control circuit; the wireless control circuit which comprises a wireless interface used for receiving an external wireless control signal, and a control circuit, wherein the input end of the control circuit is electrically connected with the wireless interface, the output end of the control circuit is electrically connected with thecontrol end of a relay circuit, and the control circuit is used for outputting a control signal to the relay circuit according to the wireless control signal; a relay, wherein the first contact is electrically connected with the first audio output circuit, the second contact is electrically connected with the first audio output circuit, and the third contact is electrically connected with the playing circuit, and the relay is used for connecting the third contact with the first contact and disconnecting the third contact from the second contact when the control signal is at a first level, anddisconnecting the third contact with the first contact and connecting the third contact with the second contact when the control signal is at a second level.

Description

technical field [0001] The invention relates to the field of automotive electronics, in particular to the field of vehicle tuning systems, and discloses a vehicle audio system and an audio circuit switching circuit. Background technique [0002] After the original car audio system is refitted and upgraded, how to judge that the refitted sound effect is better than the original car sound effect? In the prior art, the refitted circuit needs to be connected back to the original car audio system for listening comparison. This method is clumsy, inconvenient to operate, takes a long time, and has low efficiency. Contents of the invention [0003] One of the objectives of the embodiments of the present invention is to provide a vehicle audio system and an audio circuit switching circuit. [0004] In the first aspect, an embodiment of the present invention provides an audio line switching circuit, including: [0005] The power supply circuit is used to provide a power supply vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2420/03
Inventor 秦先清何志辉李富强韦贤艺李艳雄李亚
Owner 广州市车厘子电子科技有限公司
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