An LED colored light and sound control circuit and the sound system using it

Abstract

This utility model discloses an LED colored light and sound control circuit and a sound system using the same, including a Bluetooth module, a charging management circuit, a rectifier circuit, an audio signal analysis circuit, an LED light driver circuit, an audio signal amplification circuit, an audio power amplifier circuit, and a battery. This utility model receives audio signals through the Bluetooth module, extracts audio spectrum features in real time through an audio signal analysis chip, and combines the AD sampling and PWM wave output of the audio signal analysis chip to precisely control multiple LED light driver circuits. This allows the LED light groups to dynamically change with the rhythm, frequency, and amplitude of the music, achieving an immersive visual effect of color gradation, flashing, and brightness adjustment. Simultaneously, the charging management chip and charging protection chip work together to support battery charging and discharging control. Combined with the rectifier circuit, the voltage is regulated twice to ensure the stability of the Bluetooth module, power amplifier circuit, and LED driver circuit under different loads, extending the device's battery life.

Description

Technical Field

[0001] This utility model relates to the field of audio technology, specifically to an LED colored light audio control circuit and an audio system using the same circuit. Background Technology

[0002] With the rapid development of smart homes and portable electronic devices, multifunctional audio equipment that integrates audio playback and lighting effects has gradually become a market hotspot. Currently, traditional audio equipment typically only has audio playback functionality and lacks a visual interactive experience; while some audio products that integrate LED lights have relatively simple lighting control methods, often relying on preset programs to achieve fixed color or rhythm changes, failing to achieve real-time synchronization with the played audio content, resulting in a lack of immersive user experience. Utility Model Content

[0003] In view of this, the main objective of this utility model is to provide an LED colored light sound control circuit and a sound system using the same circuit.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: Embodiment 1 of this utility model provides an LED colored light and sound control circuit, including: Bluetooth module, charging management circuit, rectifier circuit, audio signal parsing circuit, LED light driver circuit, audio signal amplification circuit, audio power amplifier circuit and battery; The Bluetooth module is used to establish a wireless communication connection with the mobile terminal and receive audio signals. The charging management circuit is connected to a DC power supply for managing the charging of the battery, and its current output terminal is connected to a rectifier circuit. The rectifier circuit is used to regulate the current output by the charging management circuit to provide working power for the Bluetooth module, audio amplifier circuit and LED driver circuit. The audio signal amplification circuit is connected to the Bluetooth module to acquire the audio signal, amplify it, and then transmit the amplified audio signal to the audio signal analysis circuit. The audio signal parsing circuit controls the LED light driving circuit according to the parsed audio signal, driving the LED light group to flash in different colors; The audio amplifier circuit is connected to the Bluetooth module for synchronous playback of the audio signal; The battery stores electrical energy through a charging management circuit and provides regulated power to each functional module under the action of a rectifier circuit.

[0005] In the above scheme, the charging management circuit includes a charging interface, a seventeenth capacitor, a twenty-fourth resistor, a first light-emitting diode, a charging management chip, a thirty-seventh resistor, a twenty-eighth capacitor, a twenty-ninth capacitor, a thirty-ninth resistor, a charging protection chip, a fortieth resistor, and a sixteenth capacitor. The charging interface is connected to a DC power supply. The first end of the charging interface is connected to the first end of the seventeenth capacitor, the first end of the twenty-fourth resistor, the VCC terminal of the charging management chip, and the CE terminal of the charging management chip. The second end of the charging interface is connected to the second end of the seventeenth capacitor. The second end of the twenty-fourth resistor is connected in series with the first light-emitting diode and then connected to the SHRG terminal of the charging management chip. The BAT terminals of the charging management chip are connected to the positive terminal of the battery. The first terminal of the 28th capacitor, the first terminal of the 38th resistor, and the first terminal of the 40th resistor are connected. The second terminal of the 28th capacitor is connected to the TEMP terminal of the charging management chip, the GND terminal of the charging management chip, and the first terminal of the 37th resistor. The second terminal of the 37th resistor is connected to the PROG terminal of the charging management chip. The second terminal of the 38th resistor is connected to the first terminal of the 39th resistor and the first terminal of the 29th capacitor. The second terminal of the 39th resistor is connected to the second terminal of the 29th capacitor and then grounded. The negative terminal of the battery is connected to the first terminal of the 16th capacitor and the GND terminal of the charging protection chip. The second terminal of the 40th resistor is connected to the VDD terminal of the charging protection chip and the second terminal of the 16th capacitor.

[0006] In the above scheme, the rectifier circuit includes a third resistor, an eleventh resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a fourth resistor, a twenty-third resistor, a fuse, a rectifier, a second transistor, an eighth MOSFET, and a ninth MOSFET. The first terminal of the eleventh resistor is connected to the BAT terminal of the charging management chip and the source of the ninth MOSFET, respectively. The second terminal of the eleventh resistor is connected to the gate of the eighth MOSFET, the gate of the ninth MOSFET, the first terminal of the sixteenth resistor, and the first terminal of the seventeenth resistor, respectively. The drains of the eight MOSFETs are connected to the drain of the ninth MOSFET and the first terminal of the fuse, respectively. The second terminal of the sixteenth resistor is connected to the collector of the second transistor. The base of the second transistor is connected to the first terminal of the fifteenth resistor and the first terminal of the third resistor, respectively. The second terminal of the fifteenth resistor is connected to the emitter of the second transistor and then grounded. The second terminal of the seventeenth resistor is connected to the first terminal of the rectifier. The second terminal of the rectifier is connected to the first terminal of the fourth resistor and the first terminal of the twenty-third resistor, respectively. The third terminal of the rectifier is grounded.

[0007] In the above scheme, the audio signal amplification circuit includes a 27th resistor, a 28th resistor, a 29th resistor, a 30th resistor, a 31st resistor, a 23rd capacitor, a 24th capacitor, a 25th capacitor, a 26th capacitor, a 27th capacitor, a second diode, and an amplifier. The first terminal of the 28th resistor is connected to the first terminals of the 12th and 13th capacitors, respectively. The second terminal of the 12th capacitor is connected to the DAR terminal of the Bluetooth module. The second terminal of the 13th capacitor is connected to the DACL terminal of the Bluetooth module. The second terminal of the 28th resistor is connected in series with the 23rd capacitor and then connected to the first terminal of the 30th resistor and the third terminal of the amplifier. The second terminal of the 30th resistor is connected to the first terminal of the 26th capacitor and the third terminal of the amplifier. The fourth terminal is connected, and the fifth terminal of the amplifier is connected to the first terminal of the twenty-fifth capacitor, the first terminal of the twenty-seventh resistor, and the first terminal of the twenty-sixth resistor. The second terminal of the twenty-sixth resistor is connected to the PB1 / ADC6 / LP_TH1 terminal of the Bluetooth module. The second terminal of the twenty-seventh resistor is connected to the first terminal of the twenty-ninth resistor and the first terminal of the twenty-fourth capacitor. The second terminal of the twenty-ninth resistor is connected to the second terminal of the twenty-fourth capacitor and then grounded. The second terminal of the twenty-fifth capacitor is grounded. The second terminal of the twenty-sixth capacitor is connected to the positive terminal of the second diode and the first terminal of the thirty-first resistor. The second terminal of the thirty-first resistor is connected to the first terminal of the twenty-seventh capacitor and then grounded. The second terminal of the twenty-seventh capacitor is connected to the negative terminal of the second diode.

[0008] In the above scheme, the audio signal analysis circuit includes an audio signal analysis chip, a first inductor, a fourteenth capacitor, and a fifteenth capacitor. The first end of the first inductor is connected to the second end of the fourth resistor and the second end of the fuse, respectively. The second end of the first inductor is connected to the VDD terminal of the audio signal analysis chip, the first end of the fourteenth capacitor, and the first end of the fifteenth capacitor, respectively. The second end of the fourteenth capacitor is connected to the second end of the fifteenth capacitor and the VSS terminal of the audio signal analysis chip and then grounded. The PA2 / AIN2 / PWM3 / SDA1 terminals of the audio signal analysis chip are connected to the second end of the rectifier. The PA1 / AIN1 / EX_CKI1 terminals of the audio signal analysis chip are connected to the second end of the third resistor. The PA0 / AIN0 / VREFH terminals of the audio signal analysis chip are connected to the negative terminal of the second diode.

[0009] In the above scheme, the LED light driving circuit includes a colored light connection terminal, a 41st resistor, a 30th capacitor, an 18th resistor, a 32nd resistor, a 3rd transistor, a 19th resistor, a 33rd resistor, a 4th transistor, a 20th resistor, a 34th resistor, a 5th transistor, a 21st resistor, a 35th resistor, a 6th transistor, a 22nd resistor, a 36th resistor, and a 7th transistor. The first terminal of the 41st resistor is connected to the second terminal of a fuse. The second terminal of the 41st resistor is connected to both the first terminal of the 30th capacitor and the LEDVCC terminal of the colored light connection terminal. The second terminal of the 30th capacitor is grounded. The colored light connection terminal connects to the colored light. The first end of the eighteenth resistor is connected to the PA7 / Xout / PWM3 terminal of the audio signal analysis chip. The second end of the eighteenth resistor is connected to the first end of the thirty-second resistor and the base of the third transistor. The second end of the thirty-second resistor is connected to the emitter of the third transistor and then grounded. The collector of the third transistor is connected to the RED terminal of the colored light connection terminal. The first end of the nineteenth resistor is connected to the PB3 / AIN8 / PWM4 / BZ1 / CMPO terminal of the audio signal analysis chip. The second end of the nineteenth resistor is connected to the base of the fourth transistor and one end of the thirty-third resistor. The second terminal of the third resistor is connected to the emitter of the fourth transistor and then grounded. The collector of the fourth transistor is connected to the GREEN terminal of the colored light connection. The first terminal of the twentieth resistor is connected to the PB2 / AIN7 / PWM5 terminal of the audio signal analysis chip. The second terminal of the twentieth resistor is connected to the base of the fifth transistor and one end of the thirty-fourth resistor. The second terminal of the thirty-fourth resistor is connected to the emitter of the fifth transistor and then grounded. The collector of the fifth transistor is connected to the BLUE terminal of the colored light connection. The first terminal of the twenty-first resistor is connected to the PB1 / AIN6 / INT1 / PWM1 terminal of the audio signal analysis chip. The second end of resistor 21 is connected to the base of transistor 6 and one end of resistor 35. The second end of resistor 35 is connected to the emitter of transistor 6 and then grounded. The collector of transistor 6 is connected to the WHIT terminal of the LED connection. The first end of resistor 22 is connected to PA4 / AIN4 / PWM2 / SCL1 of the audio signal analysis chip. The second end of resistor 22 is connected to the base of transistor 7 and one end of resistor 36. The second end of resistor 36 is connected to the emitter of transistor 7 and then grounded. The collector of transistor 7 is connected to the YELLOW terminal of the LED connection.

[0010] In the above scheme, the audio power amplifier circuit includes an audio power amplifier control chip, a first resistor, a second resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a first transistor, and a power amplifier connection terminal. The first terminal of the first resistor is connected to the 7D2 / ALNK_DAT3A / PA6 terminal of the Bluetooth module. The second terminal of the first resistor is connected to the base of the first transistor and the first terminal of the fifth resistor. The second terminal of the fifth resistor is connected to the emitter of the first transistor and then grounded. The collector of the first transistor is connected to the first terminal of the second resistor and the CT terminal of the audio power amplifier control chip. The NC terminal of the audio power amplifier control chip is connected to the sixth resistor in series and then grounded. The second terminal of the second resistor is connected to the second terminal of the fuse and the first capacitor. The first terminal of the first capacitor and the first terminal of the third capacitor are connected to the PVBA terminal of the audio amplifier control chip. The second terminal of the third capacitor is connected to the second terminal of the first capacitor and then grounded. The NINP terminal of the audio amplifier control chip is connected in series with the seventh resistor and the fifth capacitor and then connected to the first terminal of the twelfth capacitor. The RLINN terminal of the audio amplifier control chip is connected in series with the eighth resistor, the fourth capacitor and the tenth capacitor and then connected to the first terminal of the tenth resistor and the first terminal of the amplifier connection terminal, respectively. The second terminal of the tenth resistor is connected to the OUTP terminal of the audio amplifier control chip. The OUTN terminal of the audio amplifier control chip is connected in series with the ninth resistor and then connected to the second terminal of the amplifier connection terminal and the first terminal of the ninth capacitor, respectively. The second terminal of the ninth capacitor is connected to the first terminal of the second capacitor and the second terminal of the eleventh capacitor and then grounded. The second terminal of the eleventh capacitor is connected to the second terminal of the second capacitor and the CTPO terminal of the audio amplifier control chip, respectively.

[0011] This utility model embodiment two provides an audio system, including the aforementioned LED colored light audio control circuit, handle, upper cover, control circuit board, lower cover, light-emitting component, speaker component, and switch. The handle is rotatably mounted on the upper cover, and the upper cover and lower cover are sealed together by a sealing ring. The control circuit board, speaker component, light-emitting component, and battery are arranged sequentially from top to bottom inside the upper cover. The charging interface is located on the upper cover, and the switch is located on the upper cover for turning the colored lights on and off.

[0012] In the above scheme, the speaker assembly includes a speaker and a speaker mounting base, the control circuit board is disposed on the speaker, and the speaker is disposed on the light-emitting component through the speaker mounting base.

[0013] In the above scheme, the light-emitting component includes a reflector and an LED light-emitting panel. The LED light-emitting panel is located at the center of the reflector. A battery compartment is provided inside the LED light-emitting panel and is mounted on the reflector via a battery. The battery is located inside the battery compartment. A vent valve is provided on the reflector and passes through a valve hole on the top cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention receives audio signals via a Bluetooth module, extracts audio spectrum features in real time via an audio signal analysis chip, and combines the AD sampling and PWM wave output of the audio signal analysis chip to precisely control multi-channel LED light drive circuits. This allows the LED light group to dynamically change with the rhythm, frequency, and amplitude of the music, achieving an immersive visual effect of color gradation, flashing, and brightness adjustment. At the same time, a charging management chip and a charging protection chip work together to support battery charging and discharging control. Combined with a rectifier circuit, the voltage is regulated twice to ensure the stability of the Bluetooth module, power amplifier circuit, and LED drive circuit under different loads, thus extending the device's battery life. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this invention, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of a colored lantern according to an embodiment of the present utility model; Figure 2 This is an exploded structural diagram of a colored lantern according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the Bluetooth module in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the charging management circuit in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the rectifier circuit in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the audio signal parsing circuit in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the LED lamp driving circuit in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the audio signal amplification circuit in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the audio amplifier circuit in an LED colored light and sound control circuit according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the charging protection chip in an LED colored light and sound control circuit according to an embodiment of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0018] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0019] like Figure 3-10 As shown, Embodiment 1 of this utility model provides an LED colored light and sound control circuit, including: Bluetooth module, charging management circuit, rectifier circuit, audio signal parsing circuit, LED light driver circuit, audio signal amplification circuit, audio power amplifier circuit and battery; The Bluetooth module is used to establish a wireless communication connection with the mobile terminal and receive audio signals. The charging management circuit is connected to a DC power supply for managing the charging of the battery, and its current output terminal is connected to a rectifier circuit. The rectifier circuit is used to regulate the current output by the charging management circuit to provide working power for the Bluetooth module, audio amplifier circuit and LED driver circuit. The audio signal amplification circuit is connected to the Bluetooth module to acquire the audio signal, amplify it, and then transmit the amplified audio signal to the audio signal analysis circuit. The audio signal parsing circuit controls the LED light driving circuit according to the parsed audio signal, driving the LED light group to flash in different colors; The audio amplifier circuit is connected to the Bluetooth module for synchronous playback of the audio signal; The battery stores electrical energy through a charging management circuit and provides regulated power to each functional module under the action of a rectifier circuit.

[0020] like Figure 3 , Figure 4 , Figure 10As shown, the charging management circuit includes a charging interface CN2, a seventeenth capacitor C17, a twenty-fourth resistor R24, a first light-emitting diode LED1, a charging management chip IC3, a thirty-seventh resistor R37, a twenty-eighth capacitor C28, a thirty-eighth resistor R38, a twenty-ninth capacitor C29, a thirty-ninth resistor R39, a charging protection chip IC4, a fortieth resistor R40, and a sixteenth capacitor C16. The charging interface CN2 is connected to a DC power supply. The first end of the charging interface CN2 is connected to the first end of the seventeenth capacitor C17, the first end of the twenty-fourth resistor R24, the VCC terminal of the charging management chip IC3, and the CE terminal of the charging management chip IC3. The second end of the charging interface CN2 is connected to the second end of the seventeenth capacitor C17. The second end of the twenty-fourth resistor R24 ​​is connected in series with the first light-emitting diode LED1 and then connected to the SHRG terminal of the charging management chip IC3. The BAT terminal of the charging management chip IC3 is connected to... The positive terminal of battery BT1 is connected to the first terminal of the 28th capacitor C28, the first terminal of the 38th resistor R38, and the first terminal of the 40th resistor R40. The second terminal of the 28th capacitor C28 is connected to the TEMP terminal and the GND terminal of the charging management chip IC3, and the first terminal of the 37th resistor R37. The second terminal of the 37th resistor R37 is connected to the PROG terminal of the charging management chip IC3. The second terminal of the 38th resistor R38 is connected to the first terminal of the 39th resistor R39 and the first terminal of the 29th capacitor C29. The second terminal of the 39th resistor R39 is connected to the second terminal of the 29th capacitor C29 and then grounded. The negative terminal of battery BAT is connected to the first terminal of the 16th capacitor C16 and the GND terminal of the charging protection chip IC4. The second terminal of the 40th resistor R40 is connected to the VDD terminal of the charging protection chip IC4 and the second terminal of the 16th capacitor C16.

[0021] like Figure 3 , Figure 4 , Figure 5As shown, the rectifier circuit includes a third resistor R3, an eleventh resistor R11, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, a fourth resistor R4, a twenty-third resistor R23, a fuse F1, a rectifier D1, a second transistor Q2, an eighth MOSFET Q8, and a ninth MOSFET Q9. The first terminal of the eleventh resistor R11 is connected to the BAT terminal of the charging management chip IC3 and the source of the ninth MOSFET Q9. The second terminal of the eleventh resistor R11 is connected to the gate of the eighth MOSFET Q8, the gate of the ninth MOSFET Q9, the first terminal of the sixteenth resistor R16, and the first terminal of the seventeenth resistor R17. The drain of the eighth MOSFET Q8 is connected to the drain of the ninth MOSFET Q9 and the first terminal of the fuse F1. The second terminal of the sixteenth resistor R16 is connected to the collector of the second transistor Q2. The base of the second transistor Q2 is connected to the first terminal of the fifteenth resistor R15 and the first terminal of the third resistor R3. The second terminal of the fifteenth resistor R15 is connected to the emitter of the second transistor Q2 and then grounded. The second terminal of the seventeenth resistor R17 is connected to the first terminal of the rectifier D1. The second terminal of the rectifier D1 is connected to the first terminal of the fourth resistor R4 and the first terminal of the twenty-third resistor R23. The third terminal of the rectifier D1 is grounded.

[0022] like Figure 3 , Figure 8As shown, the audio signal amplification circuit includes a 27th resistor R27, a 28th resistor R28, a 29th resistor R29, a 30th resistor R30, a 31st resistor R31, a 23rd capacitor C23, a 24th capacitor C24, a 25th capacitor C25, a 26th capacitor C26, a 27th capacitor C27, a second diode D2, and an amplifier U2. The first terminal of the 28th resistor R28 is connected to the first terminals of the 12th capacitor C12 and the 13th capacitor C13, respectively. The second terminal of the 12th capacitor C12 is connected to the DAR terminal of the Bluetooth module IC1, and the second terminal of the 13th capacitor C13 is connected to the DACL terminal of the Bluetooth module IC1. The second terminal of the 28th resistor R28 is connected in series with the 23rd capacitor C23 and then connected to the first terminal of the 30th resistor R30 and the third terminal of the amplifier U2, respectively. The second terminal of the 30th resistor R30 is connected to the first terminal of the 26th capacitor C26. One end is connected to the fourth end of amplifier U2. The fifth end of amplifier U2 is connected to the first end of the twenty-fifth capacitor C25, the first end of the twenty-seventh resistor R27, and the first end of the twenty-sixth resistor R26. The second end of the twenty-sixth resistor R26 is connected to the PB1 / ADC6 / LP_TH1 end of Bluetooth module IC1. The second end of the twenty-seventh resistor R27 is connected to the first end of the twenty-ninth resistor R29 and the first end of the twenty-fourth capacitor C24. The second end of the twenty-ninth resistor R29 is connected to the second end of the twenty-fourth capacitor C24 and then grounded. The second end of the twenty-fifth capacitor C25 is grounded. The second end of the twenty-sixth capacitor C26 is connected to the positive terminal of the second diode D2 and the first end of the thirty-first resistor R31. The second end of the thirty-first resistor R31 is connected to the first end of the twenty-seventh capacitor C27 and then grounded. The second end of the twenty-seventh capacitor C27 is connected to the negative terminal of the second diode D2.

[0023] like Figure 3 , Figure 5 , Figure 6 and Figure 8As shown, the audio signal analysis circuit includes an audio signal analysis chip U1, a first inductor L1, a fourteenth capacitor C14, and a fifteenth capacitor C15. The first end of the first inductor L1 is connected to the second end of the fourth resistor R4 and the second end of the fuse F1. The second end of the first inductor L1 is connected to the VDD terminal of the audio signal analysis chip U1, the first end of the fourteenth capacitor C14, and the first end of the fifteenth capacitor C15. The second end of the fourteenth capacitor C14 is connected to the second end of the fifteenth capacitor C15 and the VSS terminal of the audio signal analysis chip U1 and then grounded. The PA2 / AIN2 / PWM3 / SDA1 terminals of the audio signal analysis chip U1 are connected to the second end of the rectifier D1. The PA1 / AIN1 / EX_CKI1 terminals of the audio signal analysis chip U1 are connected to the second end of the third resistor R3. The PA0 / AIN0 / VREFH terminals of the audio signal analysis chip U1 are connected to the negative terminal of the second diode D2.

[0024] like Figure 3 , Figure 7As shown, the LED light driving circuit includes a colored light connection terminal CN5, a 41st resistor R41, a 30th capacitor C30, an 18th resistor R18, a 32nd resistor R32, a 3rd transistor Q3, a 19th resistor R19, a 33rd resistor R33, a 4th transistor Q4, a 20th resistor R20, a 34th resistor R34, a 5th transistor Q5, a 21st resistor R21, a 35th resistor R35, a 6th transistor Q6, a 22nd resistor R22, a 36th resistor R36, and a 7th transistor Q7. The first terminal of the 41st resistor R41 is connected to the second terminal of the fuse F1, and the second terminal of the 41st resistor R41 is connected to the 30th capacitor C30. The first terminal of capacitor C30 is connected to the LEDVCC terminal of the colored light connection terminal CN5. The second terminal of the thirtieth capacitor C30 is grounded. The colored light connection terminal CN5 is connected to the colored light. The first terminal of the eighteenth resistor R18 is connected to the PA7 / Xout / PWM3 terminal of the audio signal analysis chip U1. The second terminal of the eighteenth resistor R18 is connected to the first terminal of the thirty-second resistor R32 and the base of the third transistor Q3. The second terminal of the thirty-second resistor R32 is connected to the emitter of the third transistor Q3 and then grounded. The collector of the third transistor Q3 is connected to the RED terminal of the colored light connection terminal CN5. The first terminal of the nineteenth resistor R19 is connected to the PB3 / AIN8 terminal of the audio signal analysis chip U1. The PWM4 / BZ1 / CMPO terminals are connected. The second terminal of the nineteenth resistor R19 is connected to the base of the fourth transistor Q4 and one end of the thirty-third resistor R33. The second terminal of the thirty-third resistor R33 is connected to the emitter of the fourth transistor Q4 and then grounded. The collector of the fourth transistor Q4 is connected to the GREEN terminal of the colored light connection terminal CN5. The first terminal of the twentieth resistor R20 is connected to the PB2 / AIN7 / PWM5 terminal of the audio signal analysis chip U1. The second terminal of the twentieth resistor R20 is connected to the base of the fifth transistor Q5 and one end of the thirty-fourth resistor R34. The second terminal of the thirty-fourth resistor R34 is connected to the emitter of the fifth transistor Q5. After being connected to ground, the collector of the fifth transistor Q5 is connected to the BLUE terminal of the colored light connection terminal CN5. The first terminal of the twenty-first resistor R21 is connected to the PB1 / AIN6 / INT1 / PWM1 terminal of the audio signal analysis chip U1. The second terminal of the twenty-first resistor R21 is connected to the base of the sixth transistor Q6 and one terminal of the thirty-fifth resistor R35. The second terminal of the thirty-fifth resistor R35 is connected to the emitter of the sixth transistor Q6 and then grounded. The collector of the sixth transistor Q6 is connected to the WHIT terminal of the colored light connection terminal CN5. The first terminal of the twenty-second resistor R22 is connected to the PA4 / AIN4 / PWM2 / SCL1 terminal of the audio signal analysis chip U1.The second end of the twenty-second resistor R22 is connected to the base of the seventh transistor Q7 and one end of the thirty-sixth resistor R36. The second end of the thirty-sixth resistor R36 is connected to the emitter of the seventh transistor Q7 and then grounded. The collector of the seventh transistor Q7 is connected to the YELLOW terminal of the colored light connection terminal CN5.

[0025] like Figure 3 , Figure 9 As shown, the audio amplifier circuit includes an audio amplifier control chip U3, a first resistor R1, a second resistor R2, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a first transistor Q1, and an amplifier connection terminal CN1. The first terminal of the first resistor R1 is connected to terminal 7 of the Bluetooth module IC1. The D2 / ALNK_DAT3A / PA6 terminal is connected. The second terminal of the first resistor R1 is connected to the base of the first transistor Q1 and the first terminal of the fifth resistor R5. The second terminal of the fifth resistor R5 is connected to the emitter of the first transistor Q1 and then grounded. The collector of the first transistor Q1 is connected to the first terminal of the second resistor R2 and the CT terminal of the audio amplifier control chip U3. The NC terminal of the audio amplifier control chip U3 is connected to the sixth resistor R6 in series and then grounded. The second terminal of the second resistor R2 is connected to the second terminal of the fuse F1 and the first resistor R6. The first terminal of capacitor C1, the first terminal of the third capacitor C3, and the PVBA terminal of audio amplifier control chip U3 are connected. The second terminal of the third capacitor C3 is connected to the second terminal of the first capacitor C1 and then grounded. The NINP terminal of the audio amplifier control chip U3 is connected in series with the seventh resistor R7 and the fifth capacitor C5, and then connected to the first terminal of the twelfth capacitor C12. The RLINN terminal of the audio amplifier control chip U3 is connected in series with the eighth resistor R8, the fourth capacitor C4, and the tenth capacitor C10, and then connected to the first terminal of the tenth resistor R10 and the amplifier connection terminal C10, respectively. The first end of N1 is connected, the second end of the tenth resistor R10 is connected to the OUTP terminal of the audio power amplifier control chip U3, the OUTN terminal of the audio power amplifier control chip U3 is connected in series with the ninth resistor R9 and then connected to the second end of the power amplifier connection terminal CN1 and the first end of the ninth capacitor C9 respectively, the second end of the ninth capacitor C9 is connected to the first end of the second capacitor C2 and the second end of the eleventh capacitor C11 and then grounded, the second end of the eleventh capacitor C11 is connected to the second end of the second capacitor C2 and the CTPO terminal of the audio power amplifier control chip U3 respectively.

[0026] like Figure 1 and Figure 2 As shown, Embodiment 2 of this utility model provides an audio system, including the aforementioned LED colored light audio control circuit, handle 1, upper cover 2, control circuit board 5, lower cover 3, light-emitting component, speaker component, and switch 4. The handle 1 is rotatably mounted on the upper cover 2. The upper cover 2 and the lower cover 3 are sealed together by a sealing ring 31. The control circuit board 5, speaker component, light-emitting component, and battery are arranged sequentially from top to bottom inside the upper cover 2. The charging interface CN2 is located on the upper cover 2, and the switch 4 is located on the upper cover 2 for turning the colored lights on and off.

[0027] like Figure 1 and Figure 2 As shown, the speaker assembly includes a speaker 9 and a speaker mounting base 91. The control circuit board 5 is disposed on the speaker 9, and the speaker 9 is disposed on the light-emitting component through the speaker mounting base 91.

[0028] like Figure 1 and Figure 2 As shown, the light-emitting component includes a reflector 6 and an LED light-emitting panel 62. The LED light-emitting panel 62 is located at the center of the reflector 6. A battery compartment 10 is disposed inside the LED light-emitting panel 62 and is mounted on the reflector 6 via a battery 63. The storage battery BT1 is disposed inside the battery compartment 10. A vent valve 81 is disposed on the reflector 6 and passes through a valve hole 8 on the upper cover 2.

[0029] The working principle of this utility model is as follows: like Figure 1 — Figure 10 As shown, the charging management circuit is connected to a 5V DC power supply through the charging interface CN2. The charging management chip IC3 (e.g., TP4056) and the charging protection chip IC4 (e.g., DW01) work together to manage the charging and discharging of the battery BT1 (e.g., a lithium-ion battery). After the external power supply is input through CN2, it charges the battery through the VCC terminal of the charging management chip IC3. The first light-emitting diode LED1 serves as a charging status indicator (red indicates charging, and off indicates fully charged). The battery output power is regulated by a rectifier circuit (including rectifier D1, MOSFET Q8 / Q9 and fuse F1) to provide a stable 5V operating voltage for the Bluetooth module, audio power amplifier circuit and LED driver circuit. The charging protection chip IC4 monitors the battery voltage in real time. When overcharging, over-discharging, or short circuit occurs, it cuts off the power supply by controlling MOSFETs Q8 / Q9 to ensure system safety.

[0030] like Figure 3 , Figure 6 As shown, after a Bluetooth module (such as the Jerry AC6926A) is paired with a mobile terminal, it receives the audio signal and transmits it in two separate channels: The first path: The audio signal is output to the audio signal amplification circuit through the DAR / DACL terminal, where the amplifier (such as LM358) amplifies the signal and then limits it through the second diode D2 before inputting it to the audio signal analysis chip U1 (such as the microcontroller STM8S003). The second channel: The audio signal is directly transmitted to the audio power amplifier circuit (such as the power amplifier chip PAM8403) to drive the speaker to play music.

[0031] like Figure 3 , Figure 7 , Figure 8 As shown, the audio signal analysis chip U1 performs AD sampling on the amplified audio signal, extracts the audio amplitude and frequency characteristics, and controls the LED driving circuit through multi-channel PWM wave output. PWM branch control: The PA7, PB3, PB2, PB1 and PA4 terminals of the audio signal analysis chip U1 output PWM signals respectively, which drive the five LED groups of red, green, blue, white and yellow through transistors Q3-Q7 (such as S8050); Dynamic response: Adjust the PWM duty cycle according to the audio amplitude to achieve LED brightness change; switch different color combinations according to frequency differences (such as red flashing triggered by low frequency and blue gradient triggered by high frequency).

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. An LED colored light and sound control circuit, characterized in that, include: Bluetooth module, charging management circuit, rectifier circuit, audio signal parsing circuit, LED light driver circuit, audio signal amplification circuit, audio power amplifier circuit and battery; The Bluetooth module is used to establish a wireless communication connection with the mobile terminal and receive audio signals. The charging management circuit is connected to a DC power supply for managing the charging of the battery, and its current output terminal is connected to a rectifier circuit. The rectifier circuit is used to regulate the current output by the charging management circuit to provide working power for the Bluetooth module, audio amplifier circuit and LED driver circuit. The audio signal amplification circuit is connected to the Bluetooth module to acquire the audio signal, amplify it, and then transmit the amplified audio signal to the audio signal analysis circuit. The audio signal parsing circuit controls the LED light driving circuit according to the parsed audio signal, driving the LED light group to flash in different colors; The audio amplifier circuit is connected to the Bluetooth module for synchronous playback of the audio signal; The battery stores electrical energy through a charging management circuit and provides regulated power to each functional module under the action of a rectifier circuit.

2. The LED colored light and sound control circuit according to claim 1, characterized in that, The charging management circuit includes a charging interface, a seventeenth capacitor, a twenty-fourth resistor, a first light-emitting diode (LED), a charging management chip, a thirty-seventh resistor, a twenty-eighth capacitor, a thirty-ninth capacitor, a thirty-ninth resistor, a charging protection chip, a fortieth resistor, and a sixteenth capacitor. The charging interface is connected to a DC power supply. The first end of the charging interface is connected to the first end of the seventeenth capacitor, the first end of the twenty-fourth resistor, the VCC terminal of the charging management chip, and the CE terminal of the charging management chip. The second end of the charging interface is connected to the second end of the seventeenth capacitor. The second end of the twenty-fourth resistor is connected in series with the first LED and then connected to the SHRG terminal of the charging management chip. The BAT terminal of the charging management chip is connected to the positive terminal of the battery, the fortieth resistor, and the sixteenth capacitor. The first terminal of the 28th capacitor, the first terminal of the 38th resistor, and the first terminal of the 40th resistor are connected. The second terminal of the 28th capacitor is connected to the TEMP terminal and the GND terminal of the charging management chip, and the first terminal of the 37th resistor, respectively. The second terminal of the 37th resistor is connected to the PROG terminal of the charging management chip. The second terminal of the 38th resistor is connected to the first terminal of the 39th resistor and the first terminal of the 29th capacitor, respectively. The second terminal of the 39th resistor is connected to the second terminal of the 29th capacitor and then grounded. The negative terminal of the battery is connected to the first terminal of the 16th capacitor and the GND terminal of the charging protection chip, respectively. The second terminal of the 40th resistor is connected to the VDD terminal of the charging protection chip and the second terminal of the 16th capacitor, respectively.

3. The LED colored light and sound control circuit according to claim 2, characterized in that, The rectifier circuit includes a third resistor, an eleventh resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, a fourth resistor, a twenty-third resistor, a fuse, a rectifier, a second transistor, an eighth MOSFET, and a ninth MOSFET. The first terminal of the eleventh resistor is connected to the BAT terminal of the charging management chip and the source of the ninth MOSFET. The second terminal of the eleventh resistor is connected to the gate of the eighth MOSFET, the gate of the ninth MOSFET, the first terminal of the sixteenth resistor, and the first terminal of the seventeenth resistor. The drain of the eighth MOSFET is connected to the drain of the ninth MOSFET and the first terminal of the fuse. The second terminal of the sixteenth resistor is connected to the collector of the second transistor. The base of the second transistor is connected to the first terminal of the fifteenth resistor and the first terminal of the third resistor. The second terminal of the fifteenth resistor is connected to the emitter of the second transistor and then grounded. The second terminal of the seventeenth resistor is connected to the first terminal of the rectifier. The second terminal of the rectifier is connected to the first terminal of the fourth resistor and the first terminal of the twenty-third resistor. The third terminal of the rectifier is grounded.

4. The LED colored light and sound control circuit according to claim 3, characterized in that, The audio signal amplification circuit includes a 27th resistor, a 28th resistor, a 29th resistor, a 30th resistor, a 31st resistor, a 23rd capacitor, a 24th capacitor, a 25th capacitor, a 26th capacitor, a 27th capacitor, a second diode, and an amplifier. The first terminal of the 28th resistor is connected to the first terminals of the 12th and 13th capacitors, respectively. The second terminal of the 12th capacitor is connected to the DAR input of the Bluetooth module. The second terminal of the 13th capacitor is connected to the DACL input of the Bluetooth module. The second terminal of the 28th resistor, connected in series with the 23rd capacitor, is then connected to the first terminal of the 30th resistor and the third terminal of the amplifier. The second terminal of the 30th resistor is connected to the first terminal of the 26th capacitor and the fourth terminal of the amplifier, respectively. The amplifier's fifth terminal is connected to the first terminal of the twenty-fifth capacitor, the first terminal of the twenty-seventh resistor, and the first terminal of the twenty-sixth resistor. The second terminal of the twenty-sixth resistor is connected to the PB1 / ADC6 / LP_TH1 terminal of the Bluetooth module. The second terminal of the twenty-seventh resistor is connected to the first terminal of the twenty-ninth resistor and the first terminal of the twenty-fourth capacitor. The second terminal of the twenty-ninth resistor is connected to the second terminal of the twenty-fourth capacitor and then grounded. The second terminal of the twenty-fifth capacitor is grounded. The second terminal of the twenty-sixth capacitor is connected to the positive terminal of the second diode and the first terminal of the thirty-first resistor. The second terminal of the thirty-first resistor is connected to the first terminal of the twenty-seventh capacitor and then grounded. The second terminal of the twenty-seventh capacitor is connected to the negative terminal of the second diode.

5. The LED colored light and sound control circuit according to claim 4, characterized in that, The audio signal analysis circuit includes an audio signal analysis chip, a first inductor, a fourteenth capacitor, and a fifteenth capacitor. The first end of the first inductor is connected to the second end of a fourth resistor and the second end of a fuse. The second end of the first inductor is connected to the VDD terminal of the audio signal analysis chip, the first end of the fourteenth capacitor, and the first end of the fifteenth capacitor. The second end of the fourteenth capacitor is connected to the second end of the fifteenth capacitor and the VSS terminal of the audio signal analysis chip, and then grounded. The PA2 / AIN2 / PWM3 / SDA1 terminals of the audio signal analysis chip are connected to the second end of a rectifier. The PA1 / AIN1 / EX_CKI1 terminals of the audio signal analysis chip are connected to the second end of a third resistor. The PA0 / AIN0 / VREFH terminals of the audio signal analysis chip are connected to the negative terminal of a second diode.

6. The LED colored light and sound control circuit according to claim 5, characterized in that, The LED light driving circuit includes a colored light connection terminal, a 41st resistor, a 30th capacitor, an 18th resistor, a 32nd resistor, a 3rd transistor, a 19th resistor, a 33rd resistor, a 4th transistor, a 20th resistor, a 34th resistor, a 5th transistor, a 21st resistor, a 35th resistor, a 6th transistor, a 22nd resistor, a 36th resistor, and a 7th transistor. The first terminal of the 41st resistor is connected to the second terminal of a fuse. The second terminal of the 41st resistor is connected to both the first terminal of the 30th capacitor and the LEDVCC terminal of the colored light connection terminal. The second terminal of the 30th capacitor is grounded. The colored light connection... The circuit connects to the colored lights. The first end of the eighteenth resistor is connected to the PA7 / Xout / PWM3 terminal of the audio signal analysis chip. The second end of the eighteenth resistor is connected to the first end of the thirty-second resistor and the base of the third transistor. The second end of the thirty-second resistor is connected to the emitter of the third transistor and then grounded. The collector of the third transistor is connected to the RED terminal of the colored light connection. The first end of the nineteenth resistor is connected to the PB3 / AIN8 / PWM4 / BZ1 / CMPO terminal of the audio signal analysis chip. The second end of the nineteenth resistor is connected to the base of the fourth transistor and one end of the thirty-third resistor. The thirty-third resistor... The second terminal of the resistor is connected to the emitter of the fourth transistor and then grounded. The collector of the fourth transistor is connected to the GREEN terminal of the colored light connection terminal. The first terminal of the twentieth resistor is connected to the PB2 / AIN7 / PWM5 terminal of the audio signal analysis chip. The second terminal of the twentieth resistor is connected to the base of the fifth transistor and one end of the thirty-fourth resistor. The second terminal of the thirty-fourth resistor is connected to the emitter of the fifth transistor and then grounded. The collector of the fifth transistor is connected to the BLUE terminal of the colored light connection terminal. The first terminal of the twentieth resistor is connected to the PB1 / AIN6 / INT1 / PWM1 terminal of the audio signal analysis chip. The second end of resistor eleven is connected to the base of transistor six and one end of resistor thirty-fifth. The second end of resistor thirty-fifth is connected to the emitter of transistor six and then grounded. The collector of transistor six is ​​connected to the WHIT terminal of the colored light connection terminal. The first end of resistor twenty-two is connected to PA4 / AIN4 / PWM2 / SCL1 terminal of audio signal analysis chip. The second end of resistor twenty-two is connected to the base of transistor seven and one end of resistor thirty-six. The second end of resistor thirty-six is ​​connected to the emitter of transistor seven and then grounded. The collector of transistor seven is connected to the YELLOW terminal of the colored light connection terminal.

7. The LED colored light and sound control circuit according to claim 6, characterized in that, The audio amplifier circuit includes an audio amplifier control chip, a first resistor, a second resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a first transistor, and an amplifier connection terminal. The first terminal of the first resistor is connected to the 7D2 / ALNK_DAT3A / PA6 terminal of the Bluetooth module. The second terminal of the first resistor is connected to the base of the first transistor and the first terminal of the fifth resistor. The second terminal of the fifth resistor is connected to the emitter of the first transistor and then grounded. The collector of the first transistor is connected to the first terminal of the second resistor and the CT terminal of the audio amplifier control chip. The NC terminal of the audio amplifier control chip is connected to the sixth resistor in series and then grounded. The second terminal of the second resistor is connected to the second terminal of a fuse and the first terminal of the first capacitor. The first terminal of the third capacitor is connected to the PVBA terminal of the audio amplifier control chip. The second terminal of the third capacitor is connected to the second terminal of the first capacitor and then grounded. The NINP terminal of the audio amplifier control chip is connected in series with the seventh resistor and the fifth capacitor and then connected to the first terminal of the twelfth capacitor. The RLINN terminal of the audio amplifier control chip is connected in series with the eighth resistor, the fourth capacitor and the tenth capacitor and then connected to the first terminal of the tenth resistor and the first terminal of the amplifier connection terminal, respectively. The second terminal of the tenth resistor is connected to the OUTP terminal of the audio amplifier control chip. The OUTN terminal of the audio amplifier control chip is connected in series with the ninth resistor and then connected to the second terminal of the amplifier connection terminal and the first terminal of the ninth capacitor, respectively. The second terminal of the ninth capacitor is connected to the first terminal of the second capacitor and the second terminal of the eleventh capacitor and then grounded. The second terminal of the eleventh capacitor is connected to the second terminal of the second capacitor and the CTPO terminal of the audio amplifier control chip, respectively.

8. A sound system, characterized in that, The device includes an LED colored light and sound control circuit as described in any one of claims 1-7, a handle, an upper cover, a control circuit board, a lower cover, a light-emitting component, a speaker component, and a switch. The handle is rotatably mounted on the upper cover. The upper cover and the lower cover are sealed together by a sealing ring. The control circuit board, speaker component, light-emitting component, and battery are arranged sequentially from top to bottom inside the upper cover. The charging interface is located on the upper cover, and the switch is located on the upper cover for turning the colored light on and off.

9. The audio system according to claim 8, characterized in that, The speaker assembly includes a speaker and a speaker mounting base. The control circuit board is disposed on the speaker, and the speaker is disposed on the light-emitting component via the speaker mounting base.

10. The audio system according to claim 9, characterized in that, The light-emitting component includes a reflector and an LED light-emitting panel. The LED light-emitting panel is located at the center of the reflector. A battery compartment is located inside the LED light-emitting panel and is mounted on the reflector via a battery. The battery is located inside the battery compartment. A vent valve is provided on the reflector and passes through a valve hole on the top cover.

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