CN215420841U

CN215420841U - LED music rhythm control circuit, cascade control circuit and lamp effect control device

Info

Publication number: CN215420841U
Application number: CN202121213327.9U
Authority: CN
Inventors: 陆周; 涂耀容
Original assignee: Shenzhen Chenjiu Technology Co ltd
Current assignee: Shenzhen Chenjiu Technology Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-01-04
Anticipated expiration: 2031-06-01

Abstract

The application relates to a LED music rhythm control circuit, cascade control circuit and lamp effect controlling means, LED music rhythm control circuit includes: the audio signal acquisition module is used for acquiring audio signals; the audio control module is connected with the audio signal acquisition module and used for receiving the audio signal, detecting a real-time frequency value and a real-time amplitude value of the audio signal and generating an LED rhythm control signal according to the real-time frequency value and the real-time amplitude value; and the LED lamp bead module is connected with the audio control module and used for emitting light according to the received LED rhythm control signal and presenting a preset rhythm effect, so that the LED lamp bead has stronger visual sense and entertainment and improves the visual experience of the public.

Description

LED music rhythm control circuit, cascade control circuit and lamp effect control device

Technical Field

The utility model relates to the field of illumination, in particular to an LED music rhythm control circuit, a cascade control circuit and a lamp effect control device.

Background

At the present stage, under the conditions of global pursuit of healthy life, severe environmental protection pressure and great energy crisis, semiconductor lighting is recognized as an important approach for health, energy conservation and environmental protection by the world, the application range of the semiconductor lighting is expanding at a very high speed, and meanwhile, people pay more and more attention to the visual experience and entertainment of the LED lamp in life.

However, the traditional LED atmosphere lamp applied to the entertainment place mainly uses the color of the light to create the environment atmosphere, and once the color of the light is set or adjusted, the light is in an autonomous changing state, and cannot form interactive experience with the environmental sound, music and the like, and dynamic visual effect and entertainment are lacked.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an LED music rhythm control circuit, a cascade control circuit, and a lamp effect control device, which can achieve a rhythm effect of a connected LED lamp in coordination with received ambient sound or music signals.

A first aspect of the present application provides an LED musical rhythm control circuit comprising:

the audio signal acquisition module is used for acquiring audio signals;

the audio control module is connected with the audio signal acquisition module and used for receiving the audio signal, detecting a real-time frequency value and a real-time amplitude value of the audio signal and generating an LED rhythm control signal according to the real-time frequency value and the real-time amplitude value;

and the LED lamp bead module is connected with the audio control module and used for emitting light according to the received LED rhythm control signal and presenting a preset rhythm effect.

In the LED musical rhythm control circuit provided in the above embodiment, by providing an audio signal acquisition module, an audio control module, and an LED lamp bead module that are connected in series, the audio control module detects a real-time frequency value and a real-time amplitude value of the audio signal, and generates an LED musical rhythm control signal according to the real-time frequency value and the real-time amplitude value; the LED lamp bead module emits light according to the received LED rhythm control signal and shows a preset rhythm effect, so that the LED lamp bead has strong visual sense and entertainment, and the visual experience of the public is improved.

In one embodiment, the rhythm effect includes at least one of brightness, color temperature, switching speed, number of lighted LED beads, flashing frequency and playing speed of the LED beads.

In one embodiment, the LED lamp bead module comprises a plurality of LED lamp bead units, and each LED lamp bead unit comprises a plurality of LED lamp beads and a corresponding driving chip;

the anode of each LED lamp bead in each LED lamp bead unit is connected with a first power supply, and the cathode of each LED lamp bead in each LED lamp bead unit is connected with the control end of the corresponding driving chip;

each driving chip is used for controlling the corresponding LED lamp bead action according to the received LED rhythm control signal, so that the LED lamp bead module presents a preset rhythm effect.

In one embodiment, the method further comprises the following steps:

the audio frequency operational amplifier module, the audio frequency signal acquisition module via the audio frequency operational amplifier module with audio frequency control module connects for receive LED rhythm control signal, and right LED rhythm control signal after enlargies or decay processing generation processing, in order to control LED lamp pearl module demonstrates predetermined rhythm effect.

In one embodiment, the audio operational amplifier module comprises:

the first end of the resistance adjusting unit is connected with the audio control module, and the second end of the resistance adjusting unit is grounded;

the audio operational amplifier adjusting unit is connected with the first end of the resistance adjusting unit, the third end of the resistance adjusting unit and the audio control module;

and the amplification or attenuation times of the LED rhythm control signal by the audio frequency operational amplifier adjusting unit are changed by changing the output resistance value of the resistance adjusting unit.

In one embodiment, the audio operational amplifier module further includes:

the filtering unit is connected between the audio signal acquisition module and the audio operational amplifier adjusting unit in series;

the first capacitor is connected in series between the resistance adjusting unit and the audio operational amplifier adjusting unit;

the second capacitor is connected between the filtering unit and the audio operational amplifier adjusting unit in series;

one end of the pull-up resistor is connected with a second power supply, and the other end of the pull-up resistor is connected with the audio operational amplifier adjusting unit;

one end of the pull-down resistor is grounded, and the other end of the pull-down resistor is connected with the second capacitor, the pull-up resistor and the audio operational amplifier adjusting unit;

and one end of the third capacitor is grounded, and the other end of the third capacitor is connected with the second power supply and the audio operational amplifier adjusting unit.

In one embodiment, the audio signal acquisition module includes an audio signal acquisition unit and an audio input interface, and the audio signal acquisition unit is connected with the filtering unit via the audio input interface.

In one embodiment, the audio signal acquisition unit includes an audio signal acquisition circuit and an automatic gain control circuit, and the automatic gain control circuit is connected in series between the audio input interface and the audio signal acquisition circuit.

In one embodiment, the method further comprises the following steps:

and the charging management module is connected with the audio signal acquisition module and used for supplying power to the subordinate circuit.

A second aspect of the present application provides a cascaded LED musical rhythm control circuit comprising:

at least two LED music rhythm control circuits connected in series are used for controlling the LED lamp bead modules to jointly present a preset rhythm effect.

A third aspect of the present application provides an LED lamp efficiency control apparatus, comprising:

a housing; and

the LED musical rhythm control circuit is positioned in the shell.

In the LED lamp effect control device provided in the above embodiments, the LED musical rhythm control circuit is disposed inside the housing by disposing the housing, and the LED musical rhythm control circuit can be used in a portable manner or in a fixed mounting manner.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain drawings of other embodiments based on these drawings without any creative effort.

FIG. 1 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a first embodiment of the present application;

FIG. 2 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a second embodiment of the present application;

FIG. 3 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a third embodiment of the present application;

FIG. 4 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a fourth embodiment of the present application;

FIG. 5 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a fifth embodiment of the present application;

FIG. 6 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a sixth embodiment of the present application;

FIG. 7 is a schematic circuit diagram of an LED musical rhythm control circuit provided in a seventh embodiment of the present application;

FIG. 8 is a schematic circuit diagram of an LED musical rhythm control circuit provided in an eighth embodiment of the present application;

FIG. 9 is a schematic circuit diagram of a cascaded LED musical rhythm control circuit provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of an LED lamp efficiency control device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of an LED lamp efficiency control device provided in another embodiment of the present application;

fig. 12 is a schematic structural diagram of a cascaded LED lamp effect control device provided in an embodiment of the present application.

The reference numbers illustrate: 10-an audio signal acquisition module, 11-an audio signal acquisition unit, 12-an audio input interface, 110-an audio signal acquisition circuit and 111-an automatic gain control circuit;

20-an audio control module, 30-an LED lamp bead module, 31-an LED lamp bead unit, 311-an LED lamp bead and 312-a driving chip;

40-audio operational amplifier module, 41-resistance regulating unit, 42-audio operational amplifier regulating unit and 43-filtering unit; 50-a charging management module, 51-a charging unit, 52-a voltage reduction unit, a shell-200 and a transparent window-300.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

In this application, unless otherwise expressly stated or limited, the terms "connected" and "connecting" are used broadly and encompass, for example, direct connection, indirect connection via an intermediary, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In order to explain the technical solution of the present application, the following description will be given by way of specific examples.

In an embodiment of the present application, as shown in fig. 1, an LED musical rhythm control circuit includes an audio signal acquisition module 10, an audio control module 20, and an LED lamp bead module 30. The audio signal acquisition module 10 is used for acquiring audio signals; the audio control module 20 is connected with the audio signal acquisition module 10, and is configured to receive an audio signal, detect a real-time frequency value and a real-time amplitude value of the audio signal, and generate an LED rhythm control signal according to the real-time frequency value and the real-time amplitude value; LED lamp pearl module 30 is connected with audio control module 20 for it is luminous according to the LED rhythm control signal that receives, and demonstrate predetermined rhythm effect.

Specifically, the rhythm effect includes at least one of brightness, color temperature, switching speed, number of lighted LED lamp beads, flicker frequency and playing speed.

In one embodiment, as shown in fig. 2, the LED lamp bead module 30 includes a plurality of LED lamp bead units 31, and each LED lamp bead unit 31 includes a plurality of LED lamp beads 311 and a corresponding driving chip 312; the anode of each LED lamp bead 311 in each LED lamp bead unit 31 is connected to a first power VCC1, and the cathode of each LED lamp bead 311 in each LED lamp bead unit 31 is connected to the control end of the corresponding driving chip 312; each driver chip 312 is used for controlling the corresponding LED lamp bead action according to the received LED rhythm control signal, so that the LED lamp bead module exhibits a preset rhythm effect.

Specifically, each level of LED lamp beads has a corresponding driver chip, i.e. the first level of LED lamp beads 311 is connected to the control end of the first level of driver chip 312. The third end of the driving chip of the previous stage is connected with the first end of the driving chip of the next stage. The driving chip 312 of the first stage controls the LED lamp bead of the first stage to emit light according to the received LED rhythm control signal, and transmits the LED rhythm control signal to the driving chip of the next stage. The LED lamp bead comprises any one or combination of red, green, blue, white, warm white, yellow, purple, powder and orange. The nth-level LED lamp bead unit also comprises LED lamp beads and a driving chip at corresponding levels.

In one embodiment, as shown in fig. 3, the LED musical rhythm control circuit further includes an audio operational amplifier module 40. The audio signal acquisition module 10 is connected with the audio control module 20 through the audio operational amplifier module 40, and is used for receiving the LED rhythm control signal, amplifying or attenuating the LED rhythm control signal to generate the processed LED rhythm control signal, and controlling the LED lamp bead module to display a preset rhythm effect.

Specifically, as shown in fig. 4, the audio op-amp module 40 includes a resistance adjusting unit 41 and an audio op-amp adjusting unit 42. A first end of the resistance adjusting unit 41 is connected with the audio control module 20, and a second end of the resistance adjusting unit 41 is grounded; the audio operational amplifier adjusting unit 42 is connected with the first end of the resistance adjusting unit 41, the third end of the resistance adjusting unit 41 and the audio control module 20; the amplification or attenuation times of the LED rhythm control signal by the audio operational amplifier adjusting unit 42 are changed by changing the output resistance value of the resistance adjusting unit 41.

In one embodiment, as shown in fig. 5, the audio operational amplifier module 40 further includes a filtering unit 43, a first capacitor C1, a second capacitor C2, a pull-up resistor R3, a pull-down resistor R4, and a third capacitor C3. The filtering unit 43 is connected in series between the audio signal acquisition module 10 and the audio operational amplifier adjusting unit 41; the first capacitor C1 is connected in series between the resistance adjusting unit 41 and the audio operational amplifier adjusting unit 42; the second capacitor C2 is connected in series between the filtering unit 43 and the audio operational amplifier adjusting unit 41; one end of a pull-up resistor R3 is connected with a second power supply VCC2, and the other end of the pull-up resistor R3 is connected with an audio operational amplifier adjusting unit; one end of the pull-down resistor R4 is grounded, and the other end of the pull-down resistor R4 is connected with the second capacitor C2, the pull-up resistor R3 and the + IN pin of the audio operational amplifier adjusting unit 41; one end of the third capacitor C3 is grounded, and the other end of the third capacitor C3 is connected to the second power VCC2 and the VDD pin of the audio operational amplifier adjusting unit 41. The first capacitor C1 and the second capacitor C2 are used for cutting off direct current and only pass through alternating current audio signals; the up-down pull-down resistors R3 and R4 are matched with each other, when there is no audio signal, the node voltage between the up-down pull-down resistors is half of the VDD voltage, and when there is an audio signal, the node voltage varies between 0 and VDD along with the strength of the audio signal, so that the audio operational amplifier adjusting unit 41 amplifies or attenuates the audio signal and generates a processed audio signal.

Specifically, with continued reference to fig. 5, the resistance adjustment unit 41 includes a resistor R1 and a resistor R2. One end of the resistor R1 is connected to both the OUT pin of the audio operational amplifier adjusting unit 42 and the audio control module 20, and the other end of the resistor R1 is connected to both the first capacitor C1 and the-IN pin of the audio operational amplifier adjusting unit 41; the resistor R2 is connected in series between the first capacitor C1 and ground. The amplification or attenuation times of the LED rhythm control signal are changed by adjusting the resistance value of the resistor R2.

Specifically, with continued reference to fig. 5, the filtering unit 43 includes a resistor R5 and a capacitor C4. The resistor R5 is connected in series between the audio signal acquisition module and the second capacitor C2, one end of the capacitor C4 is grounded, and the other end of the capacitor C4 is connected with the resistor R5 and the second capacitor C2, so that the received audio signals are subjected to low-pass filtering processing to filter out high-frequency interference waveforms in the audio signals, and only the audio signals in a required specific frequency range are reserved.

In one embodiment, as shown in fig. 6, the audio signal acquisition module 10 includes an audio signal acquisition unit 11 and an audio input interface 12, and the audio signal acquisition unit 11 is connected to the filtering unit 43 via the audio input interface 12. When the audio input interface 12 is externally connected with an audio line, the audio input interface 12 outputs an audio signal transmitted by the externally connected audio line; when the external audio cable is not plugged, the audio input interface 12 outputs the audio signal collected by the audio signal collecting unit 11.

Specifically, the audio signal acquisition unit 11 includes an audio signal acquisition circuit 110 and an automatic gain control circuit 111, and the automatic gain control circuit 111 is connected in series between the audio input interface 12 and the audio signal acquisition circuit 110.

In one embodiment, as shown in FIG. 7, the LED musical rhythm control circuit also includes a charge management circuit 50. The charging management circuit 50 is connected to the audio signal acquisition module 10, and is configured to supply power to a subsequent circuit, so as to provide a stable power supply for the entire circuit.

As an example, as shown in fig. 8, the audio control module 20 includes a key K1, a control chip U1 and a capacitor C5, one end of the key K1 is grounded, and the other end of the key K1 is connected to a pin GPIO1 of the control chip U1; a VCC pin of the control chip U1 is connected with a second power VCC2, an ADC pin of the control chip is connected with an OUT pin of the audio operational amplifier adjusting unit 41, a GND pin of the control chip is grounded, and a GPIO2 pin of the control chip is connected with the first-stage driving chip 312; one end of the capacitor C5 is connected to a second power source VCC2, and the other end of the capacitor C5 is grounded.

By way of example, the control chip U1 may include, but is not limited to, a micro control unit MCU having a software program therein, the MCU operating in both a passive mode and an active mode. The GPIO2 pin of the control chip U1 has the following 2 functions: 1. monitoring whether a data signal exists or not, if so, not performing any treatment, and always keeping a monitoring state (namely, the MCU works in a passive mode, and does not influence the monitored data waveform by configuring the state of the GPIO); 2. if the data signal is not monitored within a certain time (for example, 1 second), the GPIO2 pin actively sends the data signal to the LED lamp bead according to the parameter effect preset by the MCU internal program, namely, the MCU becomes an active mode. The key K1 is manually controlled by a person, a software program in the MCU chip can detect the action of the key in real time, and the software realizes different functions according to the detected key state (such as pressing, loosening, long pressing, short pressing, pressing for a plurality of times within a period of time, first mounting and not discharging and then powering on, and the like) and the current running state (such as being started or shut down, in a setting mode, in a normal playing mode, firstly powering on, and the like) of the software.

As an example, with continued reference to fig. 8, the audio signal capturing circuit 110 includes a resistor R6, a capacitor C6, a microphone MIC1, a resistor R7, a capacitor C7, and a resistor R8. One end of the resistor R6 is connected with a second power supply VCC2, the other end of the resistor R6 is connected with one end of the capacitor C6, and the other end of the capacitor C6 is grounded; one end of the resistor R7 is connected with the resistor R8 and the anode of the sound pickup microphone MIC 1; the negative electrode of the pickup microphone MIC1 is grounded; one end of the resistor R8 is connected with the anode of the pickup microphone MIC1, and the other end of the resistor R8 is connected with the automatic gain control circuit 111; the capacitor C7 is connected in parallel with the microphone MIC 1.

As an example, referring to fig. 8, the agc circuit 111 includes a capacitor C8, a capacitor C9, a resistor R9, a capacitor C10, a resistor R10, a resistor R11, a capacitor C11, a capacitor C12, and a transistor Q1. Through the mutual cooperation of all components and parts in the automatic gain control circuit 111, the automatic gain control is carried out on the acquired audio signal so as to prevent the audio signal from being excessively amplified by the triode Q1 and causing the saturation distortion phenomenon.

As an example, continuing to refer to fig. 8, the charging management module 50 includes a charging unit 51 and a voltage-reducing unit connected in series. The charging unit 51 incorporates a lithium battery BAT and a charge management chip 1. When the LED music rhythm control circuit is not connected with an external power supply, the lithium battery BAT supplies power, and the charging management chip1 controls the charging of the lithium battery BAT. The charging unit 51 further includes a selection switch K2, a capacitor C13, a resistor R13, a resistor R12, and an LED 1. When the LED music rhythm control circuit needs to supply power to the lithium battery BAT, the selection switch K2 is switched off; when the LED musical rhythm control circuit does not need the lithium battery BAT for power supply, the selection switch K2 is closed. The voltage reduction unit 52 reduces the voltage of 3.6V to 4.2V supplied from the lithium battery and stabilizes the voltage at 3.3V for the operation of the subsequent circuit.

Specifically, the voltage reduction unit 52 includes a capacitor C14, an LDO chip, and a capacitor C15. The LDO chip is a low dropout regulator. The IN pin of the LDO chip is connected with the capacitor C14, the OUT pin of the LDO chip is connected with the capacitor C15, and the GND pin of the LDO chip is grounded.

By way of example, continuing to refer to fig. 8, the LED musical rhythm control circuit further includes an input interface IN and an output interface OUT. The input interface IN and the output interface OUT respectively comprise three pins, wherein the pin 1 is a DAT pin, the pin 2 is a VDD2 pin, and the pin 3 is a GND pin. The DAT pin of the input interface IN is connected with the GPIO2 pin of the chip U1 and the first port of the first-stage driving chip, and can receive a control signal transmitted by the LED music controller and control the LED lamp bead module to show a preset rhythm effect according to the control signal; a VDD2 pin of the input interface IN is connected with a VDD2 pin of the output interface OUT, and a GND pin of the input interface IN is connected with a GND pin of the output interface OUT; and a fourth port of the driving chip in the nth-stage LED lamp bead unit is connected with a DAT pin of the output interface OUT so as to transmit an LED rhythm control signal for controlling the LED lamp effect module to emit light to the DAT pin of the output interface OUT.

In one embodiment of the present application, as shown in fig. 9, there is also provided a cascaded LED musical rhythm control circuit, comprising: at least two LED music rhythm control circuit as above that connect in series for control a plurality of LED lamp pearl modules demonstrate predetermined rhythm effect jointly.

Specifically, pin 1 of the output interface of the LED musical rhythm control circuit of the previous stage is connected to pin 1 of the input interface of the LED musical rhythm control circuit of the subsequent stage, that is, the LED rhythm control signals of the LED musical rhythm control circuits of the previous and subsequent stages are connected in series; and power supplies between the input interface and the output interface of the LED musical rhythm control circuit at the front stage and the rear stage are mutually connected in parallel. Fig. 9 shows only two LED musical rhythm control circuits connected in series with each other, but the LED musical rhythm control circuits may be more than two LED musical rhythm control circuits connected in series without being limited thereto.

In an embodiment of the present application, as shown in fig. 10 and 11, there is also provided an LED lamp effect control device including: a housing 200 and LED musical rhythm control circuitry as described above. The LED musical rhythm control circuit is located inside the housing 200.

Specifically, the shape and material of the housing 200 itself are not limited, the shape of the housing 200 may be a rectangular parallelepiped, a cylinder, a sphere, etc., and the material of the housing 200 may be aluminum alloy, plastic, acrylic, wood, etc. Meanwhile, the LED lamp effect control device further includes a transparent window 300, and the housing 200 or the assembly thereof is provided with a light-transmitting window 300 having any shape, so that the LED light arranged inside the housing 200 can be emitted from the light-transmitting window 300. The shape of the light-transmitting window 300 is different according to the structural design of the housing 200, and may be any figure or combination of a circle, a rectangle, a square, a triangle, etc., and the arrangement of the light-transmitting window 300 may also be any, so as to present various and different visual effects.

In an embodiment of the present application, as shown in fig. 12, there is further provided a cascaded LED lamp effect control device, which is composed of a plurality of LED lamp effect control devices electrically connected, wherein the music rhythm control signal can be generated by the first stage LED lamp effect control device or the LED music controller.

The LED lamp effect control device provided by the application has the advantages that the product can generate music rhythm control signals to control the LED lamp beads to emit light, and the LED lamp effect control device can be used independently; in addition, also can control the LED lamp pearl in the LED lamp effect controlling means through the mode of wired or wireless bluetooth through the LED controller and give out light to show preset rhythm effect. In order to enhance the visual effect, a plurality of cascaded LED lamp effect control devices can be used for emitting light simultaneously according to the music rhythm control signal.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An LED musical rhythm control circuit, comprising:

the audio signal acquisition module is used for acquiring audio signals;

the LED lamp bead module is connected with the audio control module, is used for emitting light according to the received LED rhythm control signal and presents a preset rhythm effect;

the LED lamp bead module comprises a plurality of LED lamp bead units, and each LED lamp bead unit comprises a plurality of LED lamp beads and a corresponding driving chip;

the anode of each LED lamp bead in each LED lamp bead unit is connected with a first power supply, and the cathode of each LED lamp bead in each LED lamp bead unit is connected with the control end of the corresponding driving chip.

2. The LED musical rhythm control circuit of claim 1, wherein the rhythm effects include at least one of brightness, color temperature, switching speed, number of LED bead illuminations, flicker frequency, and play speed of the LED beads.

3. The LED musical rhythm control circuit of claim 1 or 2, further comprising:

4. The LED musical rhythm control circuit of claim 3, wherein the audio operational amplifier module comprises:

5. The LED musical rhythm control circuit of claim 4, wherein the audio operational amplifier module further comprises:

6. The LED musical rhythm control circuit of claim 5, wherein the audio signal collection module comprises an audio signal collection unit and an audio input interface, the audio signal collection unit being connected to the filtering unit via the audio input interface.

7. The LED musical rhythm control circuit of claim 6, wherein the audio signal acquisition unit comprises an audio signal acquisition circuit and an automatic gain control circuit, the automatic gain control circuit being connected in series between the audio input interface and the audio signal acquisition circuit.

8. The LED musical rhythm control circuit of claim 1 or 2, further comprising:

9. The LED musical rhythm control circuit of claim 8, wherein said charge management module comprises a charging unit and a voltage dropping unit connected in series.

10. An LED cascade control circuit, comprising:

the LED musical rhythm control circuit as claimed in any one of claims 1-9, which is used for controlling a plurality of LED lamp bead modules to jointly present a preset rhythm effect.

11. An LED lamp effect control device, comprising:

a housing; and

the LED musical rhythm control circuit of any one of claims 1-9, located within said housing.