Acousto-optic delay LED control circuit

Abstract

The utility model discloses an acousto-optic time-delay LED control circuit, which relates to the technical field of LEDs, and comprises a power supply module used for supplying power; the sound detection module is used for sound detection and signal processing; the light control module is used for illumination detection; the time delay control module is used for controlling the illumination work of the LED module in a time delay manner under the state of no light and sound, and adjusting the time delay duration according to the signal output by the sound frequency detection module; the reset module is used for controlling the sound frequency detection module to reset; the sound frequency detection module is used for adjusting the delay duration of the delay control module according to the signal output frequency of the sound detection module; and the LED module is used for illumination work. The acousto-optic delay LED control circuit of the utility model can carry out delay illumination work in the absence of light and in the presence of sound, and can intelligently adjust the delay illumination duration of the LED module according to the detected sound state, thereby improving the control intelligence of the LED control circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of LED, in particular to an acoustic-optic delay LED control circuit. Background Art

[0002] LED (Lighting Emitting Diode), that is, light-emitting diode, is a semiconductor solid-state light-emitting device. In order to achieve energy-saving and intelligent lighting control for existing LED control circuits, generally voice control components, photosensitive components, 555 timing chips, LED modules, etc. are adopted to realize that under the state of having sound and no light, the 555 timing chip delays to control the lighting work of the LED module. However, the delay time of the delay lighting work of the LED module is relatively fixed and cannot automatically adjust the lighting duration of the LED module according to the required delay duration, so it needs to be improved. Summary of the Utility Model

[0003] The embodiment of the utility model provides an acoustic-optic delay LED control circuit to solve the problems put forward in the above background art.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] An acoustic-optic delay LED control circuit includes: a power supply module, a sound detection module, a light control module, a delay control module, a reset module, a sound times detection module and an LED module;

[0006] The power supply module is used for accessing AC power, stepping down, rectifying, filtering and stabilizing the AC power and outputting DC regulated voltage;

[0007] The sound detection module is connected to the power supply module, used for receiving the DC regulated voltage and performing sound detection. When sound is detected, it outputs a first detection signal, and performs amplification and filtering processing on the first detection signal and outputs a second detection signal;

[0008] The light control module is connected to the power supply module, used for receiving the DC regulated voltage and performing light detection. When there is no light, it outputs a third detection signal;

[0009] The delay control module is connected to the power supply module, the light control module, the sound detection module and the LED module, used for receiving the DC regulated voltage. When receiving the second detection signal and the third detection signal, it outputs a first delay signal. When receiving the first control signal output by the sound times detection module, it extends the control duration of the LED module and outputs a second delay signal. When receiving the second control signal output by the sound times detection module, it extends the control duration of the LED module and outputs a third delay signal;

[0010] A reset module, connected to the power supply module, the delay control module and the sound count detection module, is used to receive DC regulated voltage and provide a reset signal to the sound count detection module when the first delay signal, the second delay signal or the third delay signal is not output by the delay control module;

[0011] A sound count detection module, connected to the power supply module, the sound detection module and the delay control module, is used to receive DC regulated voltage, receive the reset signal and perform reset work. During the period when the reset work is not performed, when the first detection signal output by the sound detection module for the second time is received, a first control signal is output, and when the second detection signal output by the sound detection module for the third time is received, a second control signal is output;

[0012] An LED module, connected to the power supply module, is used to receive DC regulated voltage, receive the first delay signal, the second delay signal or the third delay signal and perform lighting work.

[0013] As a further solution of the present utility model: The power supply module includes a power interface, a power processing device and a first capacitor; The sound detection module includes a first voice control element, a second capacitor, a first switching tube, a second resistor, a second switching tube, a first potentiometer, a third capacitor, a third resistor, a first resistor, a fourth capacitor, a fourth resistor and a second potentiometer;

[0014] Preferably, the first end and the second end of the power interface are respectively connected to the first end and the second end of the power processing device. The third end of the power processing device is connected to the first end of the first capacitor, one end of the second resistor and one end of the third resistor and is connected to one end of the second potentiometer through the fourth resistor. The other end of the second resistor is connected to the base of the second switching tube and the collector of the first switching tube. The base of the first switching tube is connected to one end of the first potentiometer and is connected to one end of the first voice control element through the second capacitor. The other end of the first potentiometer is connected to the emitter of the second switching tube, the sliding contact end of the first potentiometer, one end of the third capacitor and one end of the first resistor. The collector of the second switching tube is connected to the other end of the third resistor and is connected to the sliding contact end of the second potentiometer through the fourth capacitor. The fourth end of the power processing device, the other end of the first voice control element, the emitter of the first switching tube, the other end of the third capacitor, the other end of the first resistor and the other end of the second potentiometer are all grounded.

[0015] As a further solution of the present utility model: The sound count detection module includes a fifth resistor, a third switching tube and a first counter;

[0016] Preferably, one end of the fifth resistor and the sixteenth end of the first counter are both connected to the first end of the first capacitor. The other end of the fifth resistor is connected to the fourteenth end of the first counter and the collector of the third switching tube. The emitter of the third switching tube, the thirteenth end and the eighth end of the first counter are all grounded. The base of the first switching tube is connected to the sliding contact end of the second potentiometer.

[0017] As a further solution of the present utility model: The delay control module includes a fifth switching transistor, a seventh resistor, a sixth switching transistor, a seventh switching transistor, an eighth resistor, a ninth resistor, a tenth resistor, a fifth capacitor, a first timer, a sixth capacitor, a first diode, and a second diode;

[0018] Preferably, the emitter of the fifth switching transistor is connected to the collector of the sixth switching transistor, the collector of the seventh switching transistor, the eighth terminal of the first timer, and the first terminal of the first capacitor. The collector of the fifth switching transistor is connected to one end of the ninth resistor, one end of the tenth resistor, one end of the fifth capacitor, the sixth and seventh terminals of the first timer through the eighth resistor. The other end of the ninth resistor is connected to the emitter of the sixth switching transistor. The other end of the tenth resistor is connected to the emitter of the seventh switching transistor. The base of the fifth switching transistor is connected to the cathode of the first diode and the cathode of the second diode and grounded through the seventh resistor. The base of the sixth switching transistor is connected to the anode of the second diode and the third terminal of the first counter. The base of the seventh switching transistor is connected to the anode of the first diode and the second terminal of the first counter. The first terminal of the first timer is connected to the sliding terminal of the second potentiometer. The fifth terminal of the first timer is grounded through the sixth capacitor. The first terminal of the first timer and the other end of the fifth capacitor are both grounded.

[0019] As a further solution of the present utility model: The reset module includes a first inverter, a fourth switching transistor, and a sixth resistor;

[0020] Preferably, the input terminal of the first inverter is connected to the third terminal of the first timer. The output terminal of the first inverter is connected to the base of the fourth switching transistor. The collector of the fourth switching transistor is connected to the first terminal of the first capacitor. The emitter of the fourth switching transistor is connected to the fifteenth terminal of the first counter and grounded through the sixth resistor.

[0021] As a further solution of the present utility model: The LED module includes an eleventh resistor, a first power transistor, and an LED module;

[0022] Preferably, the gate of the first power transistor is connected to the third terminal of the first timer through the eleventh resistor. The source of the first power transistor is grounded. The drain of the first power transistor is connected to one end of the LED module. The other end of the LED module is connected to the first terminal of the first capacitor.

[0023] As a further solution of the present utility model: The light control module includes a twelfth resistor, a thirteenth resistor, a first photosensitive element, and an eighth switching transistor;

[0024] Preferably, one end of the first photosensitive element is connected to one end of the thirteenth resistor, one end of the twelfth resistor, and the first terminal of the first capacitor through the thirteenth resistor. The other end of the twelfth resistor is connected to the collector of the eighth switching transistor and the fourth terminal of the first timer. The emitter of the eighth switching transistor is connected to the second terminal of the first capacitor and the ground terminal.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows: The sound and light delay LED control circuit of the present utility model performs light detection by a light control module, performs sound detection by a sound detection module and processes the detection signal, so that in a state of no light and presence of sound, the delay control module controls the delay lighting operation of the LED module, and the sound number detection module adjusts the delay control duration of the delay control module according to the number of sounds detected by the sound detection module, intelligently adjusts the delay lighting duration of the LED module, and improves the control intelligence of the LED control circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic block diagram of the principle of a sound and light delay LED control circuit provided by an example of the present utility model.

[0028] Figure 2 It is a circuit diagram of a sound and light delay LED control circuit provided by an example of the present utility model.

[0029] Figure 3 It is a connection circuit diagram of the light control module provided by an example of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0031] In one embodiment, please refer to Figure 1 , a sound and light delay LED control circuit, comprising: a power supply module 1, a sound detection module 2, a light control module 3, a delay control module 4, a reset module 5, a sound number detection module 6 and an LED module 7;

[0032] Specifically, the power supply module 1 is used to access AC power, step down, rectify, filter and regulate the AC power, and output DC voltage regulation;

[0033] The sound detection module 2, connected to the power supply module 1, is used to receive DC voltage stabilization and perform sound detection. When sound is detected, it outputs a first detection signal, amplifies and filters the first detection signal, and outputs a second detection signal;

[0034] The light control module 3, connected to the power supply module 1, is used to receive DC voltage stabilization and perform light detection. When there is no light, it outputs a third detection signal;

[0035] The delay control module 4, connected to the power supply module 1, the light control module 3, the sound detection module 2, and the LED module 7, is used to receive DC voltage stabilization. When it receives the second detection signal and the third detection signal, it outputs a first delay signal. When it receives the first control signal output by the sound count detection module 6, it extends the control duration of the LED module 7 and outputs a second delay signal. When it receives the second control signal output by the sound count detection module 6, it extends the control duration of the LED module 7 and outputs a third delay signal;

[0036] The reset module 5, connected to the power supply module 1, the delay control module 4, and the sound count detection module 6, is used to receive DC voltage stabilization. When the delay control module 4 does not output the first delay signal, the second delay signal, or the third delay signal, it provides a reset signal to the sound count detection module 6;

[0037] The sound count detection module 6, connected to the power supply module 1, the sound detection module 2, and the delay control module 4, is used to receive DC voltage stabilization, receive the reset signal and perform the reset operation. During the period when the reset operation is not performed, when it receives the first detection signal output by the sound detection module 2 for the second time, it outputs a first control signal. When it receives the second detection signal output by the sound detection module 2 for the third time, it outputs a second control signal;

[0038] The LED module 7, connected to the power supply module 1, is used to receive DC voltage stabilization, receive the first delay signal, the second delay signal, or the third delay signal, and perform the lighting operation.

[0039] In a specific embodiment, the above power supply module 1 can adopt a power supply circuit composed of a power supply interface, a power supply processing device, and a capacitor, which can access AC electrical energy and perform step-down, rectification filtering, and voltage stabilization processing on the AC electrical energy; the above sound detection module 2 can adopt a sound detection circuit composed of a voice control element, a capacitor, a triode, etc., which can detect sound and perform amplification and filtering processing on the detected signal; the above light control module 3 can adopt a light control circuit composed of a photosensitive element, a resistor, and a triode, which can detect the ambient light state, that is, whether there is light or not; the above delay control module 4 can adopt a delay control circuit composed of a triode, a resistor, a diode, a timer, etc., which can perform delay control and adjust the delay control duration; the above reset module 5 can adopt a reset circuit composed of an inverter, a triode, and a resistor, which performs an inversion process on the signal output by the delay control module 4 and controls the reset operation of the sound count detection module 6; the above sound count detection module 6 can adopt a sound count detection module 6 composed of a counter, a triode, and a resistor, which can perform counting processing on the signal output by the sound detection module 2 and output a corresponding high-level signal; the above LED module 7 can adopt an LED circuit composed of a power transistor, an LED module, and a resistor to perform lighting work.

[0040] In another embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the power supply module 1 includes a power supply interface, a power supply processing device, and a first capacitor C1; the sound detection module 2 includes a first voice control element U1, a second capacitor C2, a first switching tube V1, a second resistor R2, a second switching tube V2, a first potentiometer RP1, a third capacitor C3, a third resistor R3, a first resistor R1, a fourth capacitor C4, a fourth resistor R4, and a second potentiometer RP2;

[0041] Specifically, the first end and the second end of the power supply interface are respectively connected to the first end and the second end of the power supply processing device. The third end of the power supply processing device is connected to the first end of the first capacitor C1, one end of the second resistor R2, and one end of the third resistor R3 and is connected to one end of the second potentiometer RP2 through the fourth resistor R4. The other end of the second resistor R2 is connected to the base of the second switching tube V2 and the collector of the first switching tube V1. The base of the first switching tube V1 is connected to one end of the first potentiometer RP1 and is connected to one end of the first voice control element U1 through the second capacitor C2. The other end of the first potentiometer RP1 is connected to the emitter of the second switching tube V2, the sliding end of the first potentiometer RP1, one end of the third capacitor C3, and one end of the first resistor R1. The collector of the second switching tube V2 is connected to the other end of the third resistor R3 and is connected to the sliding end of the second potentiometer RP2 through the fourth capacitor C4. The fourth end of the power supply processing device, the other end of the first voice control element U1, the emitter of the first switching tube V1, the other end of the third capacitor C3, the other end of the first resistor R1, and the other end of the second potentiometer RP2 are all grounded.

[0042] In a specific embodiment, the above power supply processing device may be composed of a transformer, a rectifier, a capacitor, and a voltage regulator to achieve step-down, rectification filtering, and voltage regulation processing; the above first voice control element U1 may be a piezoelectric ceramic sheet HTD; the above first switching transistor V1 and the second switching transistor V2 may both be NPN-type triodes, and cooperate with the second capacitor C2, the second resistor R2, the first potentiometer RP1, the third capacitor C3, the third resistor R3, the first resistor R1, the fourth resistor R4, and the second potentiometer RP2 for amplification and filtering processing.

[0043] Further, the voice count detection module 6 includes a fifth resistor R5, a third switching transistor V3, and a first counter IC1;

[0044] Specifically, one end of the fifth resistor R5 and the sixteenth terminal of the first counter IC1 are both connected to the first terminal of the first capacitor C1, the other end of the fifth resistor R5 is connected to the fourteenth terminal of the first counter IC1 and the collector of the third switching transistor V3, the emitter of the third switching transistor V3, the thirteenth terminal and the eighth terminal of the first counter IC1 are all grounded, and the base of the first switching transistor V1 is connected to the sliding terminal of the second potentiometer RP2.

[0045] In a specific embodiment, the above first counter IC1 may be a CD4017 chip; the above fourth switching transistor V4 may be an NPN-type triode. When the voice detection module 2 detects a voice once, it controls the conduction of the fourth switching transistor V4 and provides a high-level signal to the fourteenth terminal of the first counter IC1, so that the third terminal and the second terminal of the first counter IC1 sequentially output high-level signals.

[0046] Further, the delay control module 4 includes a fifth switching transistor V5, a seventh resistor R7, a sixth switching transistor V6, a seventh switching transistor V7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a fifth capacitor C5, a first timer IC2, a sixth capacitor C6, a first diode D1, and a second diode D2;

[0047] Specifically, the emitter of the fifth switching transistor V5 is connected to the collector of the sixth switching transistor V6, the collector of the seventh switching transistor V7, the eighth terminal of the first timer IC2, and the first terminal of the first capacitor C1. The collector of the fifth switching transistor V5 is connected to one end of the eighth resistor R8, one end of the ninth resistor R9, one end of the tenth resistor R10, one end of the fifth capacitor C5, the sixth, seventh, and eighth terminals of the first timer IC2. The other end of the ninth resistor R9 is connected to the emitter of the sixth switching transistor V6. The other end of the tenth resistor R10 is connected to the emitter of the seventh switching transistor V7. The base of the fifth switching transistor V5 is connected to the cathodes of the first diode D1 and the second diode D2 and grounded through the seventh resistor R7. The base of the sixth switching transistor V6 is connected to the anode of the second diode D2 and the third terminal of the first counter IC1. The base of the seventh switching transistor V7 is connected to the anode of the first diode D1 and the second terminal of the first counter IC1. The first terminal of the first timer IC2 is connected to the sliding terminal of the second potentiometer RP2. The fifth terminal of the first timer IC2 is grounded through the sixth capacitor C6. The first terminal of the first timer IC2 and the other end of the fifth capacitor C5 are both grounded.

[0048] In a specific embodiment, the above-mentioned first timer IC2 can be selected as an NE555 chip; the above-mentioned fifth switching transistor V5 can be selected as an NPN-type triode to control the access of the eighth resistor R8. The sixth switching transistor V6 can be selected as an NPN-type triode to control the access of the ninth resistor R9. The seventh switching transistor V7 can be selected as an NPN-type triode to control the access of the tenth resistor R10, where the resistance value of the eighth resistor R8 is less than that of the ninth resistor R9, and the resistance value of the ninth resistor R9 is less than that of the tenth resistor R10.

[0049] Further, the reset module 5 includes a first inverter J1, a fourth switching transistor V4, and a sixth resistor R6;

[0050] Specifically, the input terminal of the first inverter J1 is connected to the third terminal of the first timer IC2. The output terminal of the first inverter J1 is connected to the base of the fourth switching transistor V4. The collector of the fourth switching transistor V4 is connected to the first terminal of the first capacitor C1. The emitter of the fourth switching transistor V4 is connected to the fifteenth terminal of the first counter IC1 and grounded through the sixth resistor R6.

[0051] In a specific embodiment, the above-mentioned first inverter J1 can be selected as a NOT gate chip; the above-mentioned fourth switching transistor V4 can be selected as an NPN-type triode.

[0052] Further, the LED module 7 includes an eleventh resistor R11, a first power transistor Q1, and an LED module;

[0053] Specifically, the gate of the first power transistor Q1 is connected to the third terminal of the first timer IC2 through the eleventh resistor R11. The source of the first power transistor Q1 is grounded, and the drain of the first power transistor Q1 is connected to one end of the LED module. The other end of the LED module is connected to the first end of the first capacitor C1.

[0054] In a specific embodiment, the above-mentioned first power transistor Q1 can be an N-channel field effect transistor.

[0055] Furthermore, the light control module 3 includes a twelfth resistor R12, a thirteenth resistor R13, a first photosensitive element U2, and an eighth switching transistor V8;

[0056] Specifically, one end of the first photosensitive element U2 is connected to one end of the twelfth resistor R12 and the first end of the first capacitor C1 through the thirteenth resistor R13. The other end of the twelfth resistor R12 is connected to the collector of the eighth switching transistor V8 and the fourth terminal of the first timer IC2. The emitter of the eighth switching transistor V8 is connected to the second end of the first capacitor C1 and the ground terminal.

[0057] In a specific embodiment, the above-mentioned first photosensitive element U2 can be a 3DU5 photosensitive triode.

[0058] In an acousto-optic delay LED control circuit according to this embodiment, ac electrical energy is accessed through a power interface. The power processing device and the first capacitor C1 perform step-down, rectification filtering, and voltage stabilization filtering on the ac electrical energy to meet the power supply requirements. When there is no light, the first photosensitive element U2 is turned off, and the first switching transistor V1 is turned off, enabling the fourth terminal of the first timer IC2 to be powered. The first inverter J1 outputs a high level and controls the fourth switching transistor V4 to conduct. The first counter IC1 is in a reset state. At the same time, when the first sound control element U1 detects sound, it converts the audio signal into an electrical signal and performs amplification and filtering processing through the second capacitor C2, the first switching transistor V1, the second resistor R2, the first potentiometer RP1, the third capacitor C3, the third resistor R3, the second switching transistor V2, the first resistor R1, the fourth capacitor C4, the fourth resistor R4, and the second potentiometer RP2. And after the first sound control element U1 detects sound, a signal in a high level state will be output from the fourth capacitor C4, making the second terminal of the first timer IC2 become high. The fifth switching transistor V5 is controlled by the seventh resistor R7 and conducts. At this time, the delay duration is determined by the eighth resistor R8 and the fifth capacitor C5. The first timer IC2 controls the first power transistor Q1 to conduct within the delay duration, enabling the LED module to perform lighting work. The first inverter J1 outputs a low level, and the first counter IC1 starts counting. So during lighting, if the first sound control element U1 detects sound for the second time, the third terminal of the first counter IC1 will output a high level, controlling the fifth switching transistor V5 to turn off and the sixth switching transistor V6 to conduct. At this time, the delay duration is determined by the ninth resistor R9 and the fifth capacitor C5, and the first timer IC2 extends the delay lighting duration of the LED module. During lighting, if the first sound control element U1 detects sound for the third time, the first counter IC1 controls the seventh switching transistor V7 to conduct. At this time, the delay duration is determined by the tenth resistor R10 and the fifth capacitor C5, and the first timer IC2 extends the delay lighting duration of the LED module again until the delay duration ends or the first photosensitive element U2 detects light. The first timer IC2 stops working, and the fourth switching transistor V4 conducts to reset the first counter IC1, and then the counting work can be restarted.

[0059] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0060] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An acousto-optic delay LED control circuit, characterized in that: The sound and light delay LED control circuit comprises: a power supply module, a sound detection module, a light control module, a delay control module, a reset module, a sound frequency detection module and an LED module; The power module is used to receive AC power and perform voltage reduction, rectification, filtering and voltage stabilization on the AC power and output DC voltage stabilization; The sound detection module is connected to the power supply module, and is used to receive DC voltage regulation and perform sound detection. When a sound is detected, the first detection signal is output, and the first detection signal is amplified and filtered to output a second detection signal. The light control module is connected to the power module, and is used to receive DC voltage regulation and perform light detection, and output a third detection signal when there is no light; The delay control module is connected to the power module, the light control module, the sound detection module and the LED module, and is used to receive the DC voltage stabilization, and output the first delay signal when receiving the second detection signal and the third detection signal, and extend the control time of the LED module and output the second delay signal when receiving the first control signal output by the sound frequency detection module, and extend the control time of the LED module and output the third delay signal when receiving the second control signal output by the sound frequency detection module; The reset module is connected to the power supply module, the delay control module and the sound frequency detection module, and is used to receive a DC voltage regulator, and provide a reset signal to the sound frequency detection module when the delay control module does not output the first delay signal, the second delay signal or the third delay signal; The sound frequency detection module is connected to the power supply module, the sound detection module and the delay control module, and is used to receive a DC voltage regulator, receive a reset signal and perform a reset operation. During the period when the reset operation is not performed, when the first detection signal output by the sound detection module for the second time is received, the first control signal is output, and when the second detection signal output by the sound detection module for the third time is received, the second control signal is output; The LED module is connected to the power module, and is used to receive a DC voltage regulator, receive a first delay signal, a second delay signal or a third delay signal and perform lighting work.

2. The sound and light delay LED control circuit according to claim 1, characterized in that: The power module includes a power interface, a power processing device and a first capacitor; the sound detection module includes a first sound control element, a second capacitor, a first switch tube, a second resistor, a second switch tube, a first potentiometer, a third capacitor, a third resistor, a first resistor, a fourth capacitor, a fourth resistor and a second potentiometer; The first end and the second end of the power interface are respectively connected to the first end and the second end of the power processing device; the third end of the power processing device is connected to the first end of the first capacitor, one end of the second resistor and one end of the third resistor, and is connected to one end of the second potentiometer through a fourth resistor; the other end of the second resistor is connected to the base of the second switching tube and the collector of the first switching tube; the base of the first switching tube is connected to one end of the first potentiometer and is connected to one end of the first sound control element through the second capacitor; the other end of the first potentiometer is connected to the emitter of the second switching tube, the slider end of the first potentiometer, one end of the third capacitor and one end of the first resistor; the collector of the second switching tube is connected to the other end of the third resistor and is connected to the slider end of the second potentiometer through the fourth capacitor; the fourth end of the power processing device, the other end of the first sound control element, the emitter of the first switching tube, the other end of the third capacitor, the other end of the first resistor and the other end of the second potentiometer are all grounded.

3. The sound and light delay LED control circuit according to claim 2, characterized in that: The sound frequency detection module includes a fifth resistor, a third switch tube and a first counter; One end of the fifth resistor and the sixteenth end of the first counter are both connected to the first end of the first capacitor, the other end of the fifth resistor is connected to the fourteenth end of the first counter and the collector of the third switch tube, the emitter of the third switch tube, the thirteenth end and the eighth end of the first counter are all grounded, and the base of the first switch tube is connected to the slider end of the second potentiometer.

4. The sound and light delay LED control circuit according to claim 3 is characterized in that: The delay control module includes a fifth switch tube, a seventh resistor, a sixth switch tube, a seventh switch tube, an eighth resistor, a ninth resistor, a tenth resistor, a fifth capacitor, a first timer, a sixth capacitor, a first diode and a second diode; The emitter of the fifth switch tube is connected to the collector of the sixth switch tube, the collector of the seventh switch tube, the eighth end of the first timer and the first end of the first capacitor. The collector of the fifth switch tube is connected to one end of the ninth resistor, one end of the tenth resistor, one end of the fifth capacitor, the sixth end and the seventh end of the first timer through the eighth resistor. The other end of the ninth resistor is connected to the emitter of the sixth switch tube, and the other end of the tenth resistor is connected to the emitter of the seventh switch tube. The base of the fifth switch tube is connected to the cathode of the first diode and the cathode of the second diode and is grounded through the seventh resistor. The base of the sixth switch tube is connected to the anode of the second diode and the third end of the first counter. The base of the seventh switch tube is connected to the anode of the first diode and the second end of the first counter. The first end of the first timer is connected to the slider end of the second potentiometer. The fifth end of the first timer is grounded through the sixth capacitor. The first end of the first timer and the other end of the fifth capacitor are both grounded.

5. The sound and light delay LED control circuit according to claim 4, characterized in that: The reset module includes a first inverter, a fourth switch tube and a sixth resistor; The input end of the first inverter is connected to the third end of the first timer, the output end of the first inverter is connected to the base of the fourth switch tube, the collector of the fourth switch tube is connected to the first end of the first capacitor, and the emitter of the fourth switch tube is connected to the fifteenth end of the first counter and grounded through the sixth resistor.

6. The sound and light delay LED control circuit according to claim 4, characterized in that: The LED module includes an eleventh resistor, a first power tube and an LED module; The gate of the first power tube is connected to the third end of the first timer through the eleventh resistor, the source of the first power tube is grounded, the drain of the first power tube is connected to one end of the LED module, and the other end of the LED module is connected to the first end of the first capacitor.

7. The sound and light delay LED control circuit according to claim 4, characterized in that: The light control module includes a twelfth resistor, a thirteenth resistor, a first photosensitive element and an eighth switch tube; One end of the first photosensitive element is connected to one end of the twelfth resistor and the first end of the first capacitor through the thirteenth resistor, the other end of the twelfth resistor is connected to the collector of the eighth switching tube and the fourth end of the first timer, and the emitter of the eighth switching tube is connected to the second end of the first capacitor and the ground.

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