Audio vibration conversion circuit

Abstract

The utility model belongs to the technical field of audio processing, and especially relates to an audio vibration conversion circuit comprising a power supply circuit, and a master control circuit, an amplification circuit and an interruption circuit which are connected with the power supply circuit. The main control circuit comprises a main control chip; the input end of the amplifying circuit is connected with the main control chip, the output end of the amplifying circuit is connected with an external loudspeaker, and the amplifying circuit is used for receiving an audio signal transmitted by the main control chip and converting the audio signal into a vibration signal; and the interrupt circuit is connected with the main control chip and is used for sending an external interrupt signal to the main control chip when receiving the external interrupt signal. According to the utility model, the power supply circuit and the master control circuit, the amplification circuit and the interruption circuit connected with the power supply circuit are arranged to convert audio signals into vibration signals, and the interruption circuit is arranged to send external interruption signals to the master control chip when receiving the external interruption signals, so that the master control chip stops playing the audio signals. A user can stop audio playing quickly and conveniently, and use requirements of the user are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of audio processing, and in particular relates to an audio vibration conversion circuit. Background Art

[0002] The audio vibration conversion circuit is an electronic device that converts sound vibrations into electrical signals. It includes a vibration sensor and a corresponding circuit design. This circuit is widely used in audio devices such as microphones, headphones, speakers, as well as sound sensors, sonar and other fields. Key technologies include high sensitivity, low noise, anti-interference and frequency response. With the continuous development of science and technology, the performance and application scope of the audio vibration conversion circuit will continue to expand, bringing more convenience to people's lives. The existing audio vibration conversion circuit does not have a quick closing structure designed, and cannot be quickly closed when the user wants to stop playing. Therefore, it is necessary to improve the existing technology to solve the above problems. Utility Model Content

[0003] The utility model aims to provide an audio vibration conversion circuit, aiming to solve the technical problem in the prior art that the audio vibration conversion circuit cannot be quickly closed according to user needs.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides an audio vibration conversion circuit, including a power supply circuit and a main control circuit, an amplifying circuit and an interrupt circuit connected to the power supply circuit; the main control circuit includes a main control chip; the input end of the amplifying circuit is connected to the main control chip, and the output end of the amplifying circuit is connected to an external speaker for receiving the audio signal transmitted by the main control chip and converting it into a vibration signal; the interrupt circuit is connected to the main control chip for sending an external interrupt signal to the main control chip when receiving the external interrupt signal.

[0005] As a preferred solution, the interrupt circuit includes an acceleration sensor chip; the first pin and the fourth pin of the acceleration sensor chip are respectively connected to the eleventh pin of the twelfth pin of the main control chip; the twelfth pin and the eleventh pin of the acceleration sensor chip are respectively connected to the fifth pin and the sixth pin of the main control chip, and are used to send an external interrupt signal to the main control chip when it is received.

[0006] As a preferred solution, the amplifier circuit includes an amplifier chip; the first pin of the amplifier chip is connected to the fourteenth pin of the main control chip, the fourteenth pin of the amplifier chip is connected to the sixteenth pin of the main control chip, and the sixteenth pin of the amplifier chip is connected to the fifteenth pin of the main control chip. The first pin, the fourteenth pin and the sixteenth pin of the amplifier chip are used to receive the audio signal transmitted by the main control chip; the ninth pin and the tenth pin of the amplifier chip are connected to an external speaker, and are used to output the audio signal to the external speaker after digital-to-analog conversion and amplification; the fourth pin of the amplifier chip is connected to the seventeenth pin of the main control chip through a third MOS tube, and is used to receive the control signal of the main control chip to turn off the amplifier chip.

[0007] As a preferred solution, the power supply circuit includes a charging socket, a charging management circuit, a linear voltage regulator circuit and a rectifier boost circuit; the charging socket is connected to the main control chip; the charging management circuit is connected to the main control chip, the charging socket and an external battery; the linear voltage regulator circuit is connected to the main control chip and the external battery, and is connected to the interrupt circuit to power it; the rectifier boost circuit is connected to the main control chip and the linear voltage regulator circuit, and is connected to the amplifier circuit to power it.

[0008] As a preferred solution, the charging management circuit includes a charging management chip, the fourth pin of the charging management chip is connected to the charging socket, the second pin and the third pin of the charging management chip are connected to an external battery, and the first pin of the charging management chip is connected to the twenty-fifth pin of the main control chip.

[0009] As a preferred solution, the linear voltage stabilization circuit includes a linear voltage stabilization chip, a first pin of the linear voltage stabilization chip is connected to an external battery, a twenty-second pin of the main control chip, and a ninth pin of the main control chip.

[0010] As a preferred solution, the rectifier boost circuit includes a rectifier boost chip, the sixth pin of the rectifier boost chip is connected to the first pin of the linear regulator chip, and the third pin of the rectifier boost chip is connected to the thirteenth pin of the main control chip.

[0011] As a preferred solution, it also includes an indicator light circuit, which includes a switch MOS tube, a first lighting chip and a second lighting chip; the gate of the switch MOS tube is connected to the tenth pin of the main control chip; the first lighting chip and the second lighting chip are connected to the drain of the switch MOS tube.

[0012] As a preferred solution, a storage circuit is further included, and the storage circuit includes a storage chip, and each pin of the storage chip is connected to the corresponding pin of the main control chip.

[0013] The above one or more technical solutions in the audio vibration conversion circuit provided by the embodiment of the utility model have at least one of the following technical effects:

[0014] The utility model realizes the conversion of audio signals into vibration signals by setting a power supply circuit and a main control circuit, an amplifying circuit and an interrupt circuit connected to the power supply circuit. At the same time, an interrupt circuit is set to send an external interrupt signal to the main control chip when it is received, so that the main control chip stops playing the audio signal, which is convenient for users to quickly stop audio playback and meet the user's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A circuit schematic diagram of a power supply circuit provided in an embodiment of the utility model;

[0017] Figure 2 A circuit schematic diagram of a main control circuit provided by an embodiment of the utility model;

[0018] Figure 3 A circuit schematic diagram of an amplifier circuit provided in an embodiment of the utility model;

[0019] Figure 4 A circuit schematic diagram of an interrupt circuit provided by an embodiment of the utility model;

[0020] Figure 5 A circuit schematic diagram of an indicator light circuit provided by an embodiment of the utility model;

[0021] Figure 6 A circuit schematic diagram of a storage circuit provided by an embodiment of the utility model;

[0022] Among them, the reference numerals in the figure are:

[0023] 100-power supply circuit; 110-charging management circuit; 120-linear voltage stabilization circuit; 130-rectifier boost circuit; 200-main control circuit; 300-amplifier circuit; 400-interrupt circuit; 500-indicator light circuit; 600-storage circuit. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] In one embodiment of the present invention, Figure 1-Figure 4 As shown, an audio vibration conversion circuit is provided, including a power supply circuit 100 and a main control circuit 200, an amplifier circuit 300 and an interrupt circuit 400 connected to the power supply circuit 100. The main control circuit 200 includes a main control chip U1. The input end of the amplifier circuit 300 is connected to the main control chip U1, and the output end of the amplifier circuit 300 is connected to an external speaker, which is used to receive the audio signal transmitted by the main control chip U1 and convert it into a vibration signal; the interrupt circuit 400 is connected to the main control chip U1, and is used to send an external interrupt signal to the main control chip U1 when receiving the external interrupt signal, so that the main control chip U1 stops playing the audio signal.

[0029] The power supply circuit 100 includes a charging socket USB1, a charging management circuit 110, a linear voltage regulator circuit 120 and a rectifier boost circuit 130. The charging socket USB1 is connected to the main control chip U1. In this embodiment, the charging socket USB1 is a Type-c charging socket. The charging management circuit 110 is connected to the main control chip U1, the charging socket USB1 and an external battery. The linear voltage regulator circuit 120 is connected to the main control chip U1 and the external battery, and is connected to the interrupt circuit 400 to power it. The rectifier boost circuit 130 is connected to the main control chip U1 and the linear voltage regulator circuit 120, and is connected to the amplifier circuit 300 to power it.

[0030] Specifically, the charging management circuit 110 includes a charging management chip U5, the fourth pin of the charging management chip U5 is connected to the charging socket USB1, the second pin and the third pin of the charging management chip U5 are connected to the external battery, and the first pin of the charging management chip U5 is connected to the twenty-fifth pin of the main control chip U1. In this embodiment, the model of the charging management chip U5 is preferably AD4057, or other chips of the same type. The linear voltage regulator circuit 120 includes a linear voltage regulator chip U6, the first pin of the linear voltage regulator chip U6 is connected to the external battery, the twenty-second pin of the main control chip U1, and the ninth pin of the main control chip U1. In this embodiment, the model of the linear voltage regulator chip U6 is preferably RT9013, or other chips of the same type. The rectifier boost circuit 130 includes a rectifier boost chip U7, the sixth pin of the rectifier boost chip U7 is connected to the first pin of the linear voltage regulator chip U6, and the third pin of the rectifier boost chip U7 is connected to the thirteenth pin of the main control chip U6. In this embodiment, the model of the rectifier and boost chip is preferably SGM6603-ADJYN6G / TR, or other chips of the same type.

[0031] The third pin of the main control chip U1 is connected to the fifth pin of the linear voltage regulator chip U6. The model of the main control chip U1 is preferably ESP32-S3-MINI-1, or other chips of the same type.

[0032] The amplifier circuit 300 includes an amplifier chip U4. The first pin of the amplifier chip U4 is connected to the fourteenth pin of the main control chip U1, the fourteenth pin of the amplifier chip U4 is connected to the sixteenth pin of the main control chip U1, and the sixteenth pin of the amplifier chip U4 is connected to the fifteenth pin of the main control chip U1. The first pin, the fourteenth pin and the sixteenth pin of the amplifier chip U4 are used to receive the audio signal transmitted by the main control chip U1. The ninth pin and the tenth pin of the amplifier chip U4 are connected to an external speaker, and the audio signal is output to the external speaker after digital-to-analog conversion and amplification. The fourth pin of the amplifier chip U4 is connected to the seventeenth pin of the main control chip U1 through the third MOS tube Q3, and is used to receive the control signal of the main control chip U1 to turn off the amplifier chip U4. In this embodiment, the model of the amplifier chip U4 is preferably MAX98357AETE+T, or other chips of the same type.

[0033] The interrupt circuit 400 includes an acceleration sensor chip U3. The first pin and the fourth pin of the acceleration sensor chip U3 are respectively connected to the eleventh pin of the twelfth pin of the main control chip U1. The twelfth pin and the eleventh pin of the acceleration sensor chip U3 are respectively connected to the fifth pin and the sixth pin of the main control chip U1, and are used to send an external interrupt signal to the main control chip U1 when receiving the external interrupt signal, and the interrupt signal includes but is not limited to the user's knocking, slapping, pressing, etc. In this embodiment, the model of the acceleration sensor chip U3 is preferably LIS2DW12TR, or other chips of the same type.

[0034] In one embodiment of the present invention, Figure 5 As shown, the audio vibration conversion circuit also includes an indicator light circuit 500, which is used to issue a light prompt according to the circuit situation. The indicator light circuit includes a switch MOS tube Q1, a first light chip ULED1 and a second light chip ULED2; the gate of the switch MOS tube Q1 is connected to the tenth pin of the main control chip U1; the first light chip ULED1 and the second light chip ULED2 are connected to the drain of the switch MOS tube Q1.

[0035] In one embodiment of the present invention, Figure 6 As shown, the audio vibration conversion circuit also includes a storage circuit 600 for locally storing audio files for playback. The storage circuit 600 includes a storage chip U2, and each pin of the storage chip U2 is connected to the corresponding pin of the main control chip U1. The model of the storage chip U2 is preferably W25Q256JVEIQ, or other chips of the same type.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An audio vibration conversion circuit, characterized in that: It includes a power supply circuit and a main control circuit, an amplifying circuit and an interrupt circuit connected to the power supply circuit; the main control circuit includes a main control chip; the input end of the amplifying circuit is connected to the main control chip, and the output end of the amplifying circuit is connected to an external speaker for receiving an audio signal transmitted by the main control chip and converting it into a vibration signal; the interrupt circuit is connected to the main control chip for sending an external interrupt signal to the main control chip when receiving the external interrupt signal.

2. The audio vibration conversion circuit according to claim 1, characterized in that: The interrupt circuit includes an acceleration sensor chip; the first pin and the fourth pin of the acceleration sensor chip are respectively connected to the eleventh pin of the twelfth pin of the main control chip; the twelfth pin and the eleventh pin of the acceleration sensor chip are respectively connected to the fifth pin and the sixth pin of the main control chip, and are used to send an external interrupt signal to the main control chip when it is received.

3. The audio vibration conversion circuit according to claim 2, characterized in that: The amplifying circuit includes an amplifying chip; the first pin of the amplifying chip is connected to the fourteenth pin of the main control chip, the fourteenth pin of the amplifying chip is connected to the sixteenth pin of the main control chip, and the sixteenth pin of the amplifying chip is connected to the fifteenth pin of the main control chip. The first pin, the fourteenth pin and the sixteenth pin of the amplifying chip are used to receive the audio signal transmitted by the main control chip; the ninth pin and the tenth pin of the amplifying chip are connected to the external speaker, and are used to output the audio signal to the external speaker after digital-to-analog conversion and amplification; the fourth pin of the amplifying chip is connected to the seventeenth pin of the main control chip through a third MOS tube, and is used to receive the control signal of the main control chip to turn off the amplifying chip.

4. The audio vibration conversion circuit according to claim 2, characterized in that: The power supply circuit includes a charging socket, a charging management circuit, a linear voltage regulator circuit and a rectifier-boosting circuit; the charging socket is connected to the main control chip; the charging management circuit is connected to the main control chip, the charging socket and an external battery; the linear voltage regulator circuit is connected to the main control chip and the external battery, and is connected to the interrupt circuit to power it; the rectifier-boosting circuit is connected to the main control chip and the linear voltage regulator circuit, and is connected to the amplifier circuit to power it.

5. The audio vibration conversion circuit according to claim 4, characterized in that: The charging management circuit includes a charging management chip, a fourth pin of the charging management chip is connected to the charging socket, a second pin and a third pin of the charging management chip are connected to an external battery, and a first pin of the charging management chip is connected to the twenty-fifth pin of the main control chip.

6. The audio vibration conversion circuit according to claim 5, characterized in that: The linear voltage stabilization circuit comprises a linear voltage stabilization chip, a first pin of the linear voltage stabilization chip is connected to an external battery, a twenty-second pin of the main control chip and a ninth pin of the main control chip.

7. The audio vibration conversion circuit according to claim 6, characterized in that: The rectifier-boost circuit comprises a rectifier-boost chip, a sixth pin of the rectifier-boost chip is connected to a first pin of the linear voltage regulator chip, and a third pin of the rectifier-boost chip is connected to a thirteenth pin of the main control chip.

8. The audio vibration conversion circuit according to any one of claims 1 to 7, characterized in that: It also includes an indicator light circuit, which includes a switch MOS tube, a first lighting chip and a second lighting chip; the gate of the switch MOS tube is connected to the tenth pin of the main control chip; the first lighting chip and the second lighting chip are connected to the drain of the switch MOS tube.

9. The audio vibration conversion circuit according to any one of claims 1 to 7, characterized in that: A storage circuit is also included, and the storage circuit includes a storage chip, and each pin of the storage chip is connected to the corresponding pin of the main control chip.

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