A smart speaker control circuit

Abstract

The utility model relates to a sound box control technical field, specifically related to a kind of intelligent sound box control circuit, it is applied to sound box, and the sound box is connected with mobile terminal wireless communication;Through DSP signal processing circuit and mobile terminal establish bluetooth wireless communication connection, so that user can control the audio play, sound effect adjustment etc. of sound box through PC end remote, improve the convenience and intelligent level of use.DSP signal processing circuit reads the voltage value and charging state information of power supply circuit, realizes the real-time monitoring of battery or power supply system, helps to prevent overdischarge, overcharge and other safety hazards, and provides power feedback for users.Power amplifier circuit is directly connected with loudspeaker, in combination with the audio processing capability of DSP signal processing circuit, multi-channel output or spatial audio distribution can be realized, and the sound field performance and listening experience of sound box are improved.I 2 C protocol realizes the data communication between DSP and power amplifier circuit, with the advantages of simple structure, reliable transmission and rapid response.

Description

Technical Field

[0001] This utility model relates to the field of speaker control technology, specifically to a smart speaker control circuit. Background Technology

[0002] As the smart speaker market continues to develop, consumer demand for smart speakers has expanded from simply pursuing sound quality and appearance to placing greater emphasis on interactive experiences. To meet this demand, manufacturers have been exploring ways to make smart speaker control simpler and more effective. Currently, there are three main ways to control wireless speakers: operating directly via buttons or the screen on the speaker, using an infrared or Bluetooth remote control, and remote control via a mobile application (App).

[0003] However, each of these three traditional control methods has obvious limitations:

[0004] Buttons / screens on the speaker: While this method is intuitive and easy to understand, it is difficult to control the speaker effectively and promptly when the user is far away from it, which greatly limits the user's convenience.

[0005] Infrared / Bluetooth remote control: Although remote control can solve the distance problem, it also brings new troubles, such as being easy to lose and being confused with the remote control of other electronic devices in the home, which affects the user experience.

[0006] Mobile App: Although mobile applications offer more flexible control options, allowing users to control the speaker from anywhere, the inconvenient download process, the need to complete a cumbersome registration process, and the consumption of phone memory still cause some inconvenience to users. Utility Model Content

[0007] This invention addresses the shortcomings and deficiencies of existing technologies by providing a simple intelligent speaker control circuit.

[0008] To achieve the above objectives, the present invention provides a smart speaker control circuit for use in a speaker that is wirelessly connected to a mobile device. The smart speaker control circuit includes a power supply circuit, a DSP signal processing circuit for reading the voltage value and charging status of the power supply circuit, and a power amplifier circuit for adjusting the amplitude of sound signals at different frequencies. The DSP signal processing circuit is electrically connected to the power supply circuit, and the DSP signal processing circuit communicates with the power supply via I... 2 The C protocol is connected to the power amplifier circuit for communication, and the power amplifier circuit is powered on and connected to a speaker; the DSP signal processing circuit is connected to the mobile terminal for wireless communication via Bluetooth.

[0009] Furthermore, the DSP signal processing circuit includes a DSP chip, a first capacitor, and a second capacitor; a Bluetooth antenna is soldered onto the DSP chip; one end of the first capacitor is grounded, and the other end is electrically connected to the sixth pin of the DSP chip; one end of the second capacitor is grounded, and the other end is electrically connected to the eighth pin of the DSP chip; the power supply circuit is electrically connected to the forty-first and seventy-fourth pins of the DSP chip; and the twenty-eighth, twenty-ninth, thirty-third, sixty-fourth, and sixty-sixth pins of the DSP chip are all electrically connected to the power amplifier circuit.

[0010] Further; the power amplifier circuit includes a power amplifier, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor; pins seventeen, eighteen, twentieth, twenty-first, twenty-second, twenty-third, twenty-fifth, and twenty-sixth of the power amplifier are all electrically connected to a speaker; one end of the first resistor is electrically connected to pin ten of the power amplifier, and the other end is electrically connected to pin thirtieth of the DSP chip; one end of the second resistor is electrically connected to pin eleven of the power amplifier, and the other end is electrically connected to pin twenty-nine of the DSP chip; the third resistor and the fourth resistor are connected in series, one end of which is electrically connected to the first resistor, and the other end is electrically connected to the second resistor; one end of the fifth resistor is electrically connected to pin three of the power amplifier, and the other end is connected to a resistor with a 3-pin connector.A 3V power supply voltage is provided. The second pin of the power amplifier is electrically connected to the first resistor. One end of the third capacitor is electrically connected to the fourth pin of the DSP chip, and the other end is grounded. The fifth pin of the power amplifier is electrically connected to the third capacitor. One end of the fourth capacitor is grounded, and the other end is electrically connected to the thirteenth pin of the power amplifier. The first pin of the power amplifier is electrically connected to the fourteenth pin of the power amplifier, and the fourteenth pin of the power amplifier is grounded. The twenty-ninth pin of the power amplifier is grounded. The fifth, sixth, seventh, and eighth capacitors are connected in parallel, with one end grounded and the other end electrically connected to the twenty-seventh pin of the power amplifier. The twenty-eighth pin of the power amplifier is electrically connected to the fifth capacitor. The twenty-seventh pin of the power amplifier is connected to a 24V power supply voltage. The ninth, tenth, eleventh, and twelfth capacitors are connected in parallel, with one end grounded and the other end electrically connected to the sixteenth pin of the power amplifier. The power amplifier... The fifteenth pin of the device is electrically connected to the sixteenth pin of the power amplifier, which is supplied with a 24V power voltage. The twenty-fourth pin of the power amplifier is grounded and electrically connected to the nineteenth pin of the power amplifier. One end of the sixth resistor is electrically connected to the sixth pin of the power amplifier, and the other end is electrically connected to the sixty-sixth pin of the DSP chip. One end of the seventh resistor is electrically connected to the seventh pin of the power amplifier, and the other end is electrically connected to the thirty-third pin of the DSP chip. One end of the eighth resistor is electrically connected to the eighth pin of the power amplifier, and the other end is electrically connected to the sixty-fourth pin of the DSP chip. One end of the thirteenth capacitor is grounded, and the other end is electrically connected to the sixth resistor. The fourteenth and fifteenth capacitors are connected in series, with one end connected to the seventh resistor and the other end connected to the eighth resistor. The common terminal of the fourteenth and fifteenth capacitors is connected to the thirteenth capacitor.

[0011] Further, the power supply circuit includes a synchronous rectification boost converter, a lithium battery interface, a sixteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, and a twentieth resistor, and a first inductor; one end of the ninth resistor is electrically connected to the twelfth pin of the synchronous rectification boost converter, and the other end is electrically connected to the forty-first pin of the DSP chip; one end of the sixteenth capacitor is electrically connected to the fourth pin of the synchronous rectification boost converter, and the other end is electrically connected to the forty-first pin of the DSP chip. The first inductor and the seventeenth capacitor are connected in series, with one end grounded and the other end connected to the second pin of the synchronous rectification boost converter; the thirteenth pin of the synchronous rectification boost converter is connected to the seventeenth capacitor, with one end of the eighteenth capacitor grounded and the other end connected to the first inductor, and the first pin of the synchronous rectification boost converter is grounded; the twenty-first, fourteenth, and twentieth pins of the synchronous rectification boost converter are all connected to the first pin of the synchronous rectification boost converter, and one end of the tenth resistor is grounded and the other end connected to the first inductor. The sixth pin of the synchronous rectifier-boost converter is electrically connected; one end of the eleventh resistor is grounded, and the other end is electrically connected to the seventh pin of the synchronous rectifier-boost converter; one end of the twelfth resistor is electrically connected to the tenth pin of the synchronous rectifier-boost converter, and the other end is electrically connected to the fourth pin of the lithium battery interface; one end of the thirteenth and fourteenth resistors is grounded, and the other end is electrically connected to the fifteenth pin of the synchronous rectifier-boost converter; one end of the nineteenth capacitor is grounded, and the other end is electrically connected to the fifteenth pin of the synchronous rectifier-boost converter; the eighteenth pin of the synchronous rectifier-boost converter is electrically connected to the seventeenth pin of the synchronous rectifier-boost converter; one end of the twentieth capacitor is grounded, and the other end... The 21st capacitor is electrically connected to pin 18 of the synchronous rectification boost converter; one end of the 21st capacitor is grounded, and the other end is electrically connected to pin 19 of the synchronous rectification boost converter; one end of the 15th resistor is grounded, and the other end is electrically connected to pin 11 of the synchronous rectification boost converter; one end of the 16th, 17th, 18th, and 19th resistors are connected in series and electrically connected to pin 16 of the synchronous rectification boost converter, and the other end is electrically connected to pin 5 of the synchronous rectification boost converter; one end of the 20th resistor is grounded, and the other end is electrically connected to the common terminal of the 18th and 19th resistors; the 20th resistor is electrically connected to pin 74 of the DSP chip.The 22nd and 23rd capacitors are connected in parallel, with one end grounded and the other end electrically connected to the first pin of the lithium battery interface. The fifth, sixth, and seventh pins of the lithium battery interface are all electrically connected to the 23rd capacitor. The second and third pins of the lithium battery interface are both electrically connected to the first pin. A lithium battery is installed on the lithium battery interface.

[0012] Furthermore, the DSP chip is model BES2600.

[0013] Furthermore, the power amplifier is model ACM8625s.

[0014] The beneficial effects of this utility model are:

[0015] This invention provides a smart speaker control circuit. Through a DSP signal processing circuit, it establishes a Bluetooth wireless communication connection with a mobile device, enabling users to remotely control the speaker's audio playback, sound effect adjustment, and other functions via a PC, thus improving ease of use and intelligence. The DSP signal processing circuit reads the voltage value and charging status information of the power supply circuit, enabling real-time monitoring of the battery or power supply system. This helps prevent safety hazards such as over-discharge and over-charge and provides power feedback to the user. The power amplifier circuit is directly connected to the speaker. Combined with the audio processing capabilities of the DSP signal processing circuit, it can achieve multi-channel output or spatial audio distribution, improving the speaker's sound field performance and listening experience. It employs I... 2 The C protocol enables data communication between the DSP and the power amplifier circuit. It has the advantages of simple structure, reliable transmission, and fast response, which is conducive to the efficient collaborative work of various modules within the system. Attached Figure Description

[0016] Figure 1 This is a block diagram illustrating the working principle of a smart speaker control circuit according to this utility model;

[0017] Figure 2 This is a circuit diagram of the DSP signal processing circuit in the control circuit of an intelligent speaker according to the present invention.

[0018] Figure 3 This is a circuit diagram of the power amplifier circuit in a smart speaker control circuit according to the present invention.

[0019] Figure 4 This is a circuit diagram of the power supply circuit in a smart speaker control circuit according to the present invention.

[0020] Figure 5 This is a circuit diagram of the speaker in a smart speaker control circuit according to this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] This utility model proposes a smart speaker control circuit.

[0025] In the embodiments of this utility model, such as Figure 1-5 As shown, this is a smart speaker control circuit applied to a speaker that wirelessly connects to a mobile device. The smart speaker control circuit includes a power supply circuit, a DSP signal processing circuit for reading the voltage value and charging status of the power supply circuit, and a power amplifier circuit for adjusting the amplitude of sound signals at different frequencies. The DSP signal processing circuit is electrically connected to the power supply circuit, and the DSP signal processing circuit communicates with the power supply via I... 2 The C protocol is connected to the power amplifier circuit for communication, and the power amplifier circuit is powered on and connected to a speaker; the DSP signal processing circuit is connected to the mobile terminal for wireless communication via Bluetooth.

[0026] In this embodiment, the DSP signal processing circuit includes a DSP chip, a first capacitor, and a second capacitor. A Bluetooth antenna is soldered onto the DSP chip. One end of the first capacitor is grounded, and the other end is electrically connected to the sixth pin of the DSP chip. One end of the second capacitor is grounded, and the other end is electrically connected to the eighth pin of the DSP chip. The power supply circuit is electrically connected to the forty-first and seventy-fourth pins of the DSP chip. The twenty-eighth, twenty-ninth, thirty-third, sixty-fourth, and sixty-sixth pins of the DSP chip are all electrically connected to the power amplifier circuit.

[0027] In this embodiment, the power amplifier circuit includes a power amplifier, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor; pins seventeen, eighteen, twentieth, twenty-first, twenty-second, twenty-third, twenty-fifth, and twenty-sixth of the power amplifier are all electrically connected to a speaker; one end of the first resistor is electrically connected to pin ten of the power amplifier, and the other end is electrically connected to pin thirtieth of the DSP chip; one end of the second resistor is electrically connected to pin eleven of the power amplifier, and the other end is electrically connected to pin twenty-nine of the DSP chip; the third resistor and the fourth resistor are connected in series, one end of which is electrically connected to the first resistor, and the other end is electrically connected to the second resistor; one end of the fifth resistor is electrically connected to pin three of the power amplifier, and the other end is connected to a resistor.A 3V power supply voltage is provided. The second pin of the power amplifier is electrically connected to the first resistor. One end of the third capacitor is electrically connected to the fourth pin of the DSP chip, and the other end is grounded. The fifth pin of the power amplifier is electrically connected to the third capacitor. One end of the fourth capacitor is grounded, and the other end is electrically connected to the thirteenth pin of the power amplifier. The first pin of the power amplifier is electrically connected to the fourteenth pin of the power amplifier, and the fourteenth pin of the power amplifier is grounded. The twenty-ninth pin of the power amplifier is grounded. The fifth, sixth, seventh, and eighth capacitors are connected in parallel, with one end grounded and the other end electrically connected to the twenty-seventh pin of the power amplifier. The twenty-eighth pin of the power amplifier is electrically connected to the fifth capacitor. The twenty-seventh pin of the power amplifier is connected to a 24V power supply voltage. The ninth, tenth, eleventh, and twelfth capacitors are connected in parallel, with one end grounded and the other end electrically connected to the sixteenth pin of the power amplifier. The power amplifier... The fifteenth pin of the device is electrically connected to the sixteenth pin of the power amplifier, which is supplied with a 24V power voltage. The twenty-fourth pin of the power amplifier is grounded and electrically connected to the nineteenth pin of the power amplifier. One end of the sixth resistor is electrically connected to the sixth pin of the power amplifier, and the other end is electrically connected to the sixty-sixth pin of the DSP chip. One end of the seventh resistor is electrically connected to the seventh pin of the power amplifier, and the other end is electrically connected to the thirty-third pin of the DSP chip. One end of the eighth resistor is electrically connected to the eighth pin of the power amplifier, and the other end is electrically connected to the sixty-fourth pin of the DSP chip. One end of the thirteenth capacitor is grounded, and the other end is electrically connected to the sixth resistor. The fourteenth and fifteenth capacitors are connected in series, with one end connected to the seventh resistor and the other end connected to the eighth resistor. The common terminal of the fourteenth and fifteenth capacitors is connected to the thirteenth capacitor.

[0028] In this embodiment, the power supply circuit includes a synchronous rectification boost converter, a lithium battery interface, a sixteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, and a twentieth resistor, and a first inductor; one end of the ninth resistor is electrically connected to the twelfth pin of the synchronous rectification boost converter, and the other end is electrically connected to the forty-first pin of the DSP chip; one end of the sixteenth capacitor is electrically connected to the fourth pin of the synchronous rectification boost converter. The other end is electrically connected to the third pin of the synchronous rectification boost converter; the second pin of the synchronous rectification boost converter is electrically connected to the sixteenth capacitor, the first inductor and the seventeenth capacitor are connected in series, one end is grounded, and the other end is electrically connected to the second pin of the synchronous rectification boost converter; the thirteenth pin of the synchronous rectification boost converter is electrically connected to the seventeenth capacitor, one end of the eighteenth capacitor is grounded, and the other end is electrically connected to the first inductor, and the first pin of the synchronous rectification boost converter is grounded; the twenty-first, fourteenth, and twentieth pins of the synchronous rectification boost converter are all electrically connected to the first pin of the synchronous rectification boost converter, one end of the tenth resistor is grounded, and the other end is connected to the... The sixth pin of the synchronous rectification boost converter is electrically connected; one end of the eleventh resistor is grounded, and the other end is electrically connected to the seventh pin of the synchronous rectification boost converter; one end of the twelfth resistor is electrically connected to the tenth pin of the synchronous rectification boost converter, and the other end is electrically connected to the fourth pin of the lithium battery interface; one end of the thirteenth and fourteenth resistors is grounded, and the other end is electrically connected to the fifteenth pin of the synchronous rectification boost converter; one end of the nineteenth capacitor is grounded, and the other end is electrically connected to the fifteenth pin of the synchronous rectification boost converter; the eighteenth pin of the synchronous rectification boost converter is electrically connected to the seventeenth pin of the synchronous rectification boost converter; one end of the twentieth capacitor is grounded, and the other end is electrically connected to the seventh pin of the synchronous rectification boost converter. The 21st capacitor is electrically connected to the 18th pin of the synchronous rectification boost converter; one end of the 21st capacitor is grounded, and the other end is electrically connected to the 19th pin of the synchronous rectification boost converter; one end of the 15th resistor is grounded, and the other end is electrically connected to the 11th pin of the synchronous rectification boost converter; one end of the 16th, 17th, 18th, and 19th resistors are connected in series and one end is electrically connected to the 16th pin of the synchronous rectification boost converter, and the other end is electrically connected to the 5th pin of the synchronous rectification boost converter; one end of the 20th resistor is grounded, and the other end is electrically connected to the common terminal of the 18th and 19th resistors; the 20th resistor is electrically connected to the 74th pin of the DSP chip.The 22nd and 23rd capacitors are connected in parallel, with one end grounded and the other end electrically connected to the first pin of the lithium battery interface. The fifth, sixth, and seventh pins of the lithium battery interface are all electrically connected to the 23rd capacitor. The second and third pins of the lithium battery interface are both electrically connected to the first pin. A lithium battery is installed on the lithium battery interface.

[0029] In this embodiment, the DSP chip is model BES2600.

[0030] In this embodiment, the power amplifier is model ACM8625s.

[0031] Specifically, this application utilizes the BES2600 DSP chip's wireless transmission protocol (BLE) to enable remote control of a speaker via a WeChat mini-program on a mobile device. This allows users to remotely operate the speaker, enabling it to be placed further away from the consumer for a better user experience. It avoids the hassle of downloading from app stores and eliminates the need for cumbersome registration processes, allowing customers to easily control the speaker. Data is encrypted during communication between the speaker and the WeChat mini-program, ensuring communication security and enhancing the user's interactive experience.

[0032] Power is supplied to the BES2600 DSP chip via a power circuit. Once powered on, the BES2600 operates normally and enables BLE broadcasting, allowing the WeChat mini-program and the DSP chip to establish a connection via antenna based on the BLE protocol. When the speaker switches its EQ, it sends a status update to the mini-program. The WeChat mini-program parses and processes the data, then displays the corresponding interface. Similarly, when the speaker switches its EQ, its DSP chip sends a status update to the WeChat mini-program via antenna based on the BLE protocol. The WeChat mini-program parses and processes the data, then displays the corresponding interface. When the EQ is changed via the user interface in the WeChat mini-program, data is sent to the speaker's DSP chip via BLE. The speaker's DSP chip processes the data and then... 2 The C protocol switches the power amplifier circuit with the corresponding EQ. The WeChat mini program periodically checks the speaker's battery level and charging status, and sends the query data to the speaker's DSP chip via BLE. The speaker's DSP chip reads the voltage value and charging status of the power circuit through the ADC protocol, converts the obtained voltage and charging data into BLE data, and sends it to the WeChat mini program. After parsing, the WeChat mini program displays the corresponding battery level and charging status.

[0033] The ETA6073 synchronous rectifier boost converter uses CHG_STA and BAT_STA to detect the lithium battery's charging status. The DSP chip acquires the charging status via CHG_STA. The lithium battery voltage is detected via VBAT_ADC.

[0034] The DSP chip broadcasts and receives data via the RF_OUT pin and communicates with the WeChat mini-program via BLE.

[0035] The I2C_M1_SDL and I2C_M1_SCL pins of the DSP chip are connected to the AMP1_SDA and AMP2_SCL pins of the power amplifier circuit. The DSP chip connects via I2C_M1_SDL and I2C_M1_SCL. 2 The C protocol controls the power amplifier based on these two lines, allowing you to change the corresponding EQ.

[0036] The DSP chip has a frequency equalization (EQ) function, which can be achieved through I... 2 The C protocol communicates with the power amplifier circuit to precisely adjust audio signals of different frequencies, thereby achieving personalized sound effect optimization and improving sound quality. The overall circuit structure of this application is clear, with well-defined functions and reasonable interconnections, making it suitable for application in portable or embedded smart speakers and facilitating product weight reduction and miniaturization.

[0037] This smart speaker control circuit integrates multiple functions such as power management, digital signal processing, audio power amplification, and wireless communication. It has excellent sound quality adjustment capabilities, system stability, and human-computer interaction experience, making it suitable for smart home, voice assistant, and multimedia audio applications. It has high practical value and market promotion potential.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A smart speaker control circuit, applied to a speaker, the speaker being wirelessly connected to a mobile terminal, characterized in that, The smart speaker control circuit includes a power supply circuit, a DSP signal processing circuit for reading the voltage value and charging status of the power supply circuit, and a power amplifier circuit for adjusting the amplitude of sound signals of different frequencies. The DSP signal processing circuit is electrically connected to the power supply circuit and communicates with the power amplifier circuit via the I²C protocol. A speaker is electrically connected to the power amplifier circuit. The DSP signal processing circuit is wirelessly connected to the mobile terminal via Bluetooth.

2. The smart speaker control circuit as described in claim 1, characterized in that, The DSP signal processing circuit includes a DSP chip, a first capacitor, and a second capacitor. A Bluetooth antenna is soldered onto the DSP chip. One end of the first capacitor is grounded, and the other end is electrically connected to the sixth pin of the DSP chip. One end of the second capacitor is grounded, and the other end is electrically connected to the eighth pin of the DSP chip. The power supply circuit is electrically connected to the forty-first and seventy-fourth pins of the DSP chip. The twenty-eighth, twenty-ninth, thirty-third, sixty-fourth, and sixty-sixth pins of the DSP chip are all electrically connected to the power amplifier circuit.

3. The smart speaker control circuit as described in claim 2, characterized in that, The power amplifier circuit includes a power amplifier, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor. Pins seventeen, eighteen, twentieth, twenty-first, twenty-second, twenty-third, twenty-fifth, and twenty-sixth of the power amplifier are all electrically connected to a speaker. One end of the first resistor is electrically connected to pin ten of the power amplifier, and the other end is electrically connected to pin thirtieth of the DSP chip. One end of the second resistor is electrically connected to pin eleven of the power amplifier, and the other end is electrically connected to pin twenty-nine of the DSP chip. The third and fourth resistors are connected in series, with one end electrically connected to the first resistor and the other end electrically connected to the second resistor. One end of the fifth resistor is electrically connected to pin three of the power amplifier, and the other end is connected to a resistor with a 3-pin connector.A 3V power supply voltage is provided. The second pin of the power amplifier is electrically connected to the first resistor. One end of the third capacitor is electrically connected to the fourth pin of the DSP chip, and the other end is grounded. The fifth pin of the power amplifier is electrically connected to the third capacitor. One end of the fourth capacitor is grounded, and the other end is electrically connected to the thirteenth pin of the power amplifier. The first pin of the power amplifier is electrically connected to the fourteenth pin of the power amplifier, and the fourteenth pin of the power amplifier is grounded. The twenty-ninth pin of the power amplifier is grounded. The fifth, sixth, seventh, and eighth capacitors are connected in parallel, with one end grounded and the other end electrically connected to the twenty-seventh pin of the power amplifier. The twenty-eighth pin of the power amplifier is electrically connected to the fifth capacitor. The twenty-seventh pin of the power amplifier is connected to a 24V power supply voltage. The ninth, tenth, eleventh, and twelfth capacitors are connected in parallel, with one end grounded and the other end electrically connected to the sixteenth pin of the power amplifier. The power amplifier... The fifteenth pin of the device is electrically connected to the sixteenth pin of the power amplifier, which is supplied with a 24V power voltage. The twenty-fourth pin of the power amplifier is grounded and electrically connected to the nineteenth pin of the power amplifier. One end of the sixth resistor is electrically connected to the sixth pin of the power amplifier, and the other end is electrically connected to the sixty-sixth pin of the DSP chip. One end of the seventh resistor is electrically connected to the seventh pin of the power amplifier, and the other end is electrically connected to the thirty-third pin of the DSP chip. One end of the eighth resistor is electrically connected to the eighth pin of the power amplifier, and the other end is electrically connected to the sixty-fourth pin of the DSP chip. One end of the thirteenth capacitor is grounded, and the other end is electrically connected to the sixth resistor. The fourteenth and fifteenth capacitors are connected in series, with one end connected to the seventh resistor and the other end connected to the eighth resistor. The common terminal of the fourteenth and fifteenth capacitors is connected to the thirteenth capacitor.

4. The intelligent speaker control circuit as described in claim 2, characterized in that, The power supply circuit includes a synchronous rectification boost converter, a lithium battery interface, a sixteenth capacitor, a seventeenth capacitor, an eighteenth capacitor, a nineteenth capacitor, a twentieth capacitor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, and a twentieth resistor, and a first inductor; one end of the ninth resistor is electrically connected to the twelfth pin of the synchronous rectification boost converter, and the other end is electrically connected to the forty-first pin of the DSP chip; one end of the sixteenth capacitor is electrically connected to the fourth pin of the synchronous rectification boost converter, and the other end is electrically connected to the... The third pin of the synchronous rectification boost converter is electrically connected; the second pin of the synchronous rectification boost converter is electrically connected to the sixteenth capacitor; the first inductor and the seventeenth capacitor are connected in series, with one end grounded and the other end electrically connected to the second pin of the synchronous rectification boost converter; the thirteenth pin of the synchronous rectification boost converter is electrically connected to the seventeenth capacitor; one end of the eighteenth capacitor is grounded and the other end is electrically connected to the first inductor; the first pin of the synchronous rectification boost converter is grounded; the twenty-first, fourteenth, and twentieth pins of the synchronous rectification boost converter are all electrically connected to the first pin of the synchronous rectification boost converter; one end of the tenth resistor is grounded and the other end is connected to the synchronous rectification boost converter. The sixth pin of the synchronous rectifier boost converter is electrically connected; one end of the eleventh resistor is grounded, and the other end is electrically connected to the seventh pin of the synchronous rectifier boost converter; one end of the twelfth resistor is electrically connected to the tenth pin of the synchronous rectifier boost converter, and the other end is electrically connected to the fourth pin of the lithium battery interface; one end of the thirteenth resistor and one end of the fourteenth resistor are grounded, and the other end is electrically connected to the fifteenth pin of the synchronous rectifier boost converter; one end of the nineteenth capacitor is grounded, and the other end is electrically connected to the fifteenth pin of the synchronous rectifier boost converter; the eighteenth pin of the synchronous rectifier boost converter is electrically connected to the seventeenth pin of the synchronous rectifier boost converter; one end of the twentieth capacitor is grounded, and the other end is electrically connected to... The eighteenth pin of the synchronous rectification boost converter is electrically connected; one end of the twenty-first capacitor is grounded, and the other end is electrically connected to the nineteenth pin of the synchronous rectification boost converter; one end of the fifteenth resistor is grounded, and the other end is electrically connected to the eleventh pin of the synchronous rectification boost converter; one end of the sixteenth, seventeenth, eighteenth, and nineteenth resistors connected in series is electrically connected to the sixteenth pin of the synchronous rectification boost converter, and the other end is electrically connected to the fifth pin of the synchronous rectification boost converter; one end of the twentieth resistor is grounded, and the other end is electrically connected to the common terminal of the eighteenth and nineteenth resistors; the twentieth resistor is electrically connected to the seventy-fourth pin of the DSP chip.The 22nd and 23rd capacitors are connected in parallel, with one end grounded and the other end electrically connected to the first pin of the lithium battery interface. The fifth, sixth, and seventh pins of the lithium battery interface are all electrically connected to the 23rd capacitor. The second and third pins of the lithium battery interface are both electrically connected to the first pin. A lithium battery is installed on the lithium battery interface.

5. The intelligent speaker control circuit as described in claim 4, characterized in that, The DSP chip is model BES2600.

6. The intelligent speaker control circuit as described in claim 3, characterized in that, The power amplifier is model ACM8625s.

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