Loudspeaker box LED lamp effect driving control circuit
By analyzing the audio signal through an audio signal amplification module and a controller, the speaker's LED lighting effects are dynamically adjusted, solving the problem that existing speaker lights cannot be automatically adjusted. This achieves synchronization between the lights and the music, enhancing the user experience.
Patent Information
- Application Number
- CN202520135640.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing LED lighting effects control of speakers cannot automatically adjust according to changes in music, resulting in a poor visual experience for users.
By employing an audio signal amplification module and controller, the color, brightness, and flashing frequency of the RGB LED units on the light strip circuit module are dynamically adjusted by analyzing the amplitude and frequency of the audio signal, so as to achieve synchronized changes in lighting effects with music.
It enhances the user's visual and auditory experience, with lighting effects changing according to the rhythm and volume of the music, and offers a variety of lighting modes to suit different application scenarios.
Smart Images
Figure CN223809941U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sound box lamp effect control technical field especially a sound box LED lamp effect drive control circuit. BACKGROUND
[0002] With the development of smart home technology, consumers' demand for home entertainment devices is no longer limited to basic audio and video playback functions, but focuses more on the immersive experience brought by the devices. Among them, the sound box integrated with LED light strips is widely welcomed because it can provide light effects synchronized with music. Such sound boxes not only provide high-quality sound output, but also create visual effects that change with the rhythm of music through LED light strips, greatly improving users' auditory and visual enjoyment.
[0003] However, most of the existing sound boxes can only achieve basic light changes, but there are still deficiencies in the control of light effects. Traditional sound box LED control systems often use fixed light modes and cannot automatically adjust light effects according to changes in music. UTILITY MODEL CONTENT
[0004] To solve the problems in the prior art, the utility model provides a sound box LED lamp effect drive control circuit.
[0005] The utility model adopts the technical scheme: a sound box LED lamp effect drive control circuit, including light strip circuit module, audio signal amplification module, controller and first connector, the audio signal amplification module is connected with the controller, the controller is connected with the first connector, the first connector is connected with the light strip circuit module,
[0006] The audio signal amplification module is used for amplifying the audio signal of the sound source and sending it to the controller.
[0007] The controller is used for receiving the amplified audio signal and calling the preset light effect adjustment instruction based on the amplitude and frequency of the audio signal, and the controller sends the preset light effect adjustment instruction to the light strip circuit module through the first connector.
[0008] The light strip circuit module at least includes a first RGB LED unit, a second RGB LED unit, an input connector and an output connector; one end of the input connector is connected with the first connector, the other end of the input connector is connected with the first RGB LED unit, the first RGB LED unit is cascaded with the second RGB LED unit, and the second RGB LED is connected with the output connector.
[0009] The controller adjusts at least one of color, brightness, flashing frequency and light-on sequence of each RGB LED unit on the lamp strip circuit module through preset light effect adjustment instructions.
[0010] Preferably, the fourth pin of the first RGB LED unit is connected with the second pin of the input connector, and the second pin of the first RGB LED unit is connected with the fourth pin of the second RGB LED unit; the second pin of the second RGB LED unit is connected with the second pin of the input connector.
[0011] Preferably, the audio signal amplification module comprises a first capacitor, a first resistor, a second resistor, a second capacitor, a third resistor, a triode, a third resistor and a fourth resistor.
[0012] One end of the first capacitor is connected with one end of the first resistor, the other end of the first resistor is connected with the second capacitor, the second resistor is connected in parallel between the first resistor and the second capacitor, one end of the third resistor is connected with the base of the triode, the other end of the third resistor is connected with the collector of the triode, one end of the third resistor is connected with the collector of the triode, and the other end of the third resistor is connected with one end of the fourth resistor; the other end of the fourth resistor is connected with the controller.
[0013] Preferably, the model of the controller is CA51F152S1.
[0014] Preferably, the sixth pin of the controller is connected with the fourth resistor.
[0015] Preferably, the first pin and the eighth pin of the controller are connected with a programmable port.
[0016] Preferably, the fourth connector is further used for connecting with a front-end power amplifier module of a sound box and a Bluetooth chip of the sound box.
[0017] The second pin of the fourth connector is connected with the audio signal amplification module.
[0018] The third pin of the fourth connector is connected with the first pin of the controller.
[0019] Preferably, the power module is connected with the controller.
[0020] The utility model has at least one of the following advantages:
[0021] The controller analyzes the audio signal, and according to the amplitude and frequency dynamics of the audio signal, the color, brightness, flashing frequency and lighting sequence of each RGB LED unit on the lamp strip circuit module can be controlled through the preset light effect adjustment instruction, the light effect changes with the music rhythm and volume, and the visual and auditory experience of the user is enhanced.
[0022] The lamp strip circuit module adopts a modular cascading design, that is, the first RGB LED unit is cascaded with the second RGB LED unit. This design facilitates expansion, and the user can increase or decrease the number of LED units as needed to adapt to different application scenarios. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A light effect control system block diagram of the embodiment of the utility model;
[0024] Figure 2 A circuit diagram of the light effect control system in the embodiment of the utility model;
[0025] Figure 3 A whole circuit diagram of the lamp strip circuit module in the embodiment of the utility model;
[0026] Figure 4 A Figure 3 An enlarged schematic view of the cascading circuit diagram of the RGB LED unit LD01 to the RGB LED unit LD13. DETAILED DESCRIPTION
[0027] In order to make the purpose, scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with embodiments and drawings, and the illustrative embodiments of the utility model and the description thereof are only used to explain the utility model, and not as a limitation on the utility model.
[0028] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model. However, it is apparent to those skilled in the art that the utility model does not have to be implemented with these specific details. In other embodiments, in order to avoid obscuring the utility model, well-known structures, circuits, materials or methods are not specifically described.
[0029] EMBODIMENT
[0030] As Figure 1As shown in the figure, a sound box LED light effect driving control circuit includes a light strip circuit module, an audio signal amplification module, a controller and a first connector. The audio signal amplification module is connected with the controller, the controller is connected with the first connector, and the first connector is connected with the light strip circuit module. The audio signal amplification module is used to amplify the audio signal of the sound source and send it to the controller. The controller is used to receive the amplified audio signal, and based on the amplitude and frequency of the audio signal, the preset light effect adjustment instruction is called. The controller sends the preset light effect adjustment instruction to the light strip circuit module through the first connector.
[0031] In one possible implementation, the light strip circuit module includes at least a first RGB LED unit, a second RGB LED unit, an input connector and an output connector. One end of the input connector is connected with the first connector, and the other end of the input connector is connected with the first RGB LED unit. The first RGB LED unit is connected with the second RGB LED unit in cascade, and the second RGB LED is connected with the output connector.
[0032] The fourth pin of the first RGB LED unit is connected with the second pin of the input connector, and the second pin of the first RGB LED unit is connected with the fourth pin of the second RGB LED unit. The second pin of the second RGB LED unit is connected with the second pin of the input connector.
[0033] As shown in the figure, Figure 3 , Figure 4 In another possible implementation, the light strip circuit module includes a plurality of 5x5 RGB LED units LD01 to LD13. The fourth pin of the 5x5 RGB LED unit LD01 is connected with the second pin of the input connector CON1, the second pin of the 5x5 RGB LED unit LD01 is connected with the fourth pin of the 5x5 RGB LED unit LD02, the second pin of the 5x5 RGB LED unit LD02 is connected with the fourth pin of the 5x5 RGB LED unit LD03, and in this cascading manner, the 5x5 RGB LED unit LD01 to the 5x5 RGB LED unit LD13 are connected in turn. The second pin of the 5x5 RGB LED unit LD13 is connected with the second pin of the input connector CON2.
[0034] The controller adjusts at least one of the color, brightness, flashing frequency and light-on sequence of each RGB LED unit on the light strip circuit module through the preset light effect adjustment instruction.
[0035] For reference, the preset light effect adjustment instruction is shown in the following table:
[0036]
[0037] As Figure 1 , Figure 3 With Figure 4 As shown in the present embodiment, the audio signal amplification module amplifies the input audio signal, and the amplified audio signal is transmitted to the controller. The controller analyzes the received audio signal, and according to the amplitude and frequency of the audio signal, the controller selects the appropriate light effect adjustment instruction. As shown in the table above, these instructions are pre-set, corresponding to different equivalent modes, the controller sends the selected light effect adjustment instruction to the light strip circuit module through the first connector. After receiving the instruction, the light strip circuit module changes the parameters such as color, brightness, flicker frequency and light-on sequence according to the instruction requirements, thereby generating the corresponding light effect. Specifically, as shown in Figure 3 With Figure 4 As shown, starting from CON1 (INPUT), the light effect adjustment instruction enters the first 5x5 RGB LED unit LD01, and then from the DO of LD01 to the DIN of LD02, and so on, until the last 5x5 RGB LED unit LD13. This connection method allows the state of the entire light strip circuit module to be controlled through a single data line, which is very suitable for long LED light strips or matrix displays.
[0038] The light strip circuit module adopts a modular cascading design, Figure 3 With Figure 4 As shown, that is, the 5x5 RGB LED unit LD01 to the 5x5 RGB LED unit LD13 cascades. This design is easy to expand, and users can increase or decrease the number of 5x5 RGB LED units as needed to adapt to different application scenarios.
[0039] For reference, as Figure 2 As shown, the audio signal amplification module includes a first capacitor C409, a first resistor R404, a second resistor R405, a second capacitor C410, a third resistor R406, a triode Q401, a third resistor R407 and a fourth resistor R409;
[0040] One end of the first capacitor C409 is connected to one end of the first resistor R404, the other end of the first resistor R404 is connected to the second capacitor C410, the second resistor R405 is connected in parallel between the first resistor R404 and the second capacitor C410, one end of the third resistor R406 is connected to the base of the transistor Q401, the other end of the third resistor R406 is connected to the collector of the transistor Q401, one end of the third resistor R406 is connected to the collector of the transistor Q401, and the other end of the third resistor R406 is connected to one end of the fourth resistor R409; the other end of the fourth resistor R409 is connected to the controller U403.
[0041] The other end of the first capacitor C409 is grounded, and when the audio signal is input into the audio signal amplification module, the first capacitor C409 is used to filter out noise in the audio signal, avoiding noise interference affecting the performance of the amplifier.
[0042] The first resistor R404 can be an adjustable resistor or a fixed resistor.
[0043] In one possible application scenario, a vertical light strip circuit module is provided on the surface of the sound box, and the light effect to be achieved is that when the volume of the sound box changes from small to large, the lamp beads on the light strip circuit module light up from the bottom to the top, and as the volume changes, the light on the light strip circuit module will have a jumping effect, when the volume is the largest, the light jumping amplitude is the highest, and when the volume is the smallest, the light starts from the bottom of the light strip circuit module. In this application scenario, the first resistor R404 can be set as a fixed resistor, and the resistance value of the first resistor R404 is 5.1KΩ, which allows a higher voltage gain. This means that even a small change in audio signal can be significantly amplified by the audio signal amplification module, making the light more sensitive to changes in sound. In this case, the light can start when the volume is small, and when the volume is the largest, the light can be very bright and even "jump to the top of the sound box", that is, the light effect reaches the strongest state.
[0044] In another possible implementation, the first resistor R404 can be an adjustable resistor, such as Figure 2 As shown, the resistor R404 is labeled "470R / 5K1", indicating that the resistance can be adjusted between 470 ohms (Ω) and 5.1 kilohms (kΩ), so as to adapt to different models of sound boxes.
[0045] It should be noted that the second resistor R405, the third resistor R406, the third resistor R407, and the fourth resistor R409 are all bias resistors.
[0046] Among them, as Figure 2As shown, the model of the controller U403 is CA51F152S1. The 6th pin of the controller is connected with the fourth resistor.
[0047] As shown in FIG. 6, the first connector CN404 is connected with the 2nd pin of the controller U403, the second connector CN405 is connected with the 3rd pin of the controller U403, and the third connector CN403 is connected with the 5th pin of the controller U403. The first connector CN404, the second connector CN405 and the third connector CN403 are used to connect different light strip circuit modules. Figure 2
[0048] In this embodiment, the audio signal is input from the sound source to the audio signal amplification module. The first capacitor C409 filters out the noise in the audio signal, and the triode Q401 amplifies the input audio signal. The amplified signal is transmitted to the controller U403, which receives the amplified audio signal and calls the preset light effect adjustment instructions based on the amplitude and frequency of the signal. These instructions include different light effect modes, such as rainbow right rotation, starlight, rainbow spectrum wandering, etc.
[0049] As shown in FIG. 6, the first connector CN404 is connected with the 2nd pin of the controller U403, the second connector CN405 is connected with the 3rd pin of the controller U403, and the third connector CN403 is connected with the 5th pin of the controller U403. The first connector CN404, the second connector CN405 and the third connector CN403 are used to connect different light strip circuit modules. Figure 2
[0050] As shown in FIG. 6, the first connector CN404 is connected with the 2nd pin of the controller U403, the second connector CN405 is connected with the 3rd pin of the controller U403, and the third connector CN403 is connected with the 5th pin of the controller U403. The first connector CN404, the second connector CN405 and the third connector CN403 are used to connect different light strip circuit modules. Figure 2
[0051] In this embodiment, two ways to start or change the light and sound effect mode are provided. One is to generate an audio signal through the front-end power amplifier module, and the audio signal is input to the audio signal amplifier module. The first capacitor C409 filters out the noise in the audio signal, and the triode Q401 amplifies the input audio signal. The amplified signal is transmitted to the controller U403, which receives the amplified audio signal and calls the preset light effect adjustment instruction based on the amplitude and frequency of the signal to adjust the light effect mode. The second is that the Bluetooth chip in the sound effect can directly send instructions to the controller U403 through the 3rd pin of the fourth connector. These instructions can be specific light mode selection, brightness adjustment, color change, etc. The controller U403 receives instructions from the Bluetooth chip through the 3rd pin of the fourth connector. According to these instructions, the controller U403 will immediately change the mode of the light strip circuit module, changing 1-10 preset light effect modes.
[0052] The controller U403 sends the preset light effect adjustment instructions to the corresponding light strip circuit module through the first connector CN404, the second connector CN405 and the third connector CN403. The light strip circuit module adjusts the color, brightness, flicker frequency and light-on sequence according to the received instructions. For example, the user can send instructions through a mobile phone or other Bluetooth devices to select different light modes, such as rainbow right rotation, starlight, rainbow spectrum wandering, etc.
[0053] The controller U403 sends the preset light effect adjustment instructions to the corresponding light strip circuit module through the first connector CN404, the second connector CN405 and the third connector CN403. The light strip circuit module adjusts the color, brightness, flicker frequency and light-on sequence according to the received instructions. For example, the user can send instructions through a mobile phone or other Bluetooth devices to select different light modes, such as rainbow right rotation, starlight, rainbow spectrum wandering, etc.
[0054] In summary, in the present embodiment, the audio signals output by the preamplifier module contain both frequency components and intensity information of the music. These signals are time-varying AC signals that reflect the rhythm, volume, and frequency characteristics of the music. The triode Q401 amplifies the input audio signals, making it easier for the controller U403 to detect changes in the signals. After receiving the amplified audio signals, the controller U403 analyzes the amplitude (i.e., volume) and frequency characteristics of the signals and, based on the amplitude and frequency of the signals, invokes the pre-set light effect adjustment instructions. For example, when the signal amplitude increases (indicating an increase in volume), the controller may increase the brightness of the lights or change the color of the lights. When the signal frequency is high (indicating high-frequency music), the controller may cause the lights to flash rapidly. In this way, the light effects change in synchronization with the rhythm and intensity of the music, enhancing the user's audio-visual experience. For example, during low-frequency beats, the lights can flash slowly, and during high-frequency melodies, the lights can change color or brightness rapidly.
[0055] Users can also send instructions to the controller U403 through a mobile phone or other Bluetooth device through the fourth connector to select different light modes. These instructions can directly control the color, brightness, flashing frequency, etc. of the lights. There can be 1-10 different light effect modes pre-set to meet the needs of different users. For example, users can choose modes such as rainbow right rotation, starlight, rainbow spectrum movement, etc.
[0056] As shown in Figure 2 It can be understood that the power module U402 is also included, which is connected with the controller U403. The power module U402 can output a 5-volt DC power supply to power the controller U403.
[0057] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.
Claims
1. A speaker LED light effect driving control circuit, characterized in that, The lamp strip circuit module, the audio signal amplification module, the controller and the first connector are connected, the audio signal amplification module is connected with the controller, the controller is connected with the first connector, and the first connector is connected with the lamp strip circuit module. The audio signal amplification module is used for amplifying the audio signal of the sound source and sending to the controller. The controller is used for receiving the amplified audio signal, and calling the preset lamp effect adjustment instruction based on the amplitude and frequency of the audio signal, and sending the preset lamp effect adjustment instruction to the lamp strip circuit module through the first connector. The lamp strip circuit module at least includes a first RGB LED unit, a second RGB LED unit, an input connector and an output connector; one end of the input connector is connected with the first connector, the other end of the input connector is connected with the first RGB LED unit, the first RGB LED unit is cascaded with the second RGB LED unit, and the second RGB LED is connected with the output connector. The controller adjusts at least one of the color, brightness, flashing frequency and light-on sequence of each RGB LED unit on the lamp strip circuit module through the preset lamp effect adjustment instruction.
2. The sound box LED lamp effect driving control circuit according to claim 1, characterized in that, The fourth pin of the first RGB LED unit is connected with the second pin of the input connector, and the second pin of the second RGB LED unit is connected with the second pin of the input connector.
3. The sound box LED lamp effect driving control circuit according to claim 1, characterized in that, The audio signal amplification module includes a first capacitor, a first resistor, a second resistor, a second capacitor, a third resistor, a triode, a third resistor and a fourth resistor. One end of the first capacitor is connected with one end of the first resistor, the other end of the first resistor is connected with the second capacitor, the second resistor is connected in parallel between the first resistor and the second capacitor, one end of the third resistor is connected with the base of the triode, the other end of the third resistor is connected with the collector of the triode, one end of the third resistor is connected with the collector of the triode, and the other end of the third resistor is connected with one end of the fourth resistor; the other end of the fourth resistor is connected with the controller.
4. The sound box LED lamp effect driving control circuit according to claim 1, characterized in that, The model of the controller is CA51F152S1.
5. The sound box LED lamp effect driving control circuit according to claim 3, characterized in that, The sixth pin of the controller is connected with the fourth resistor.
6. The sound box LED lamp effect driving control circuit according to claim 5, characterized in that, The first pin and the eighth pin of the controller are connected with the programmable port.
7. The LED lamp effect driving control circuit of claim 1, wherein, A fourth connector is further included, and the fourth connector is used for connecting with the front-end power amplifier module of the sound box and the Bluetooth chip of the sound box. The second pin of the fourth connector is connected with the audio signal amplification module. The third pin of the fourth connector is connected with the first pin of the controller.
8. The LED lamp effect driving control circuit of claim 1, wherein, A power module is included, and the power module is connected with the controller.