Trotting horse lamp circuit based on triangular wave signal

Abstract

The utility model relates to a trotting horse lamp circuit based on triangular wave signals, and belongs to the field of electronic technology experiment teaching. The device comprises a triangular wave signal generation circuit, a signal processing circuit and an LED lamp display module. Wherein the triangular wave signal generating circuit generates a triangular wave signal and transmits the triangular wave signal to the signal processing circuit; one end of the signal processing circuit is connected with the triangular wave signal generating circuit, the other end of the signal processing circuit is connected with the LED lamp display module, one end of each LED lamp of the LED lamp display module is connected with each signal processing circuit branch, and the other end of each LED lamp is grounded. According to the utility model, triangular wave signals generated by the signal generation circuit can be transmitted to each LED lamp, and the turn-on and turn-off sequence and time interval of each LED lamp can be changed by adjusting the slide rheostat. The experiment flexibility is improved, students can better master the flickering characteristic of the trotting horse lamp, and the learning interest of the students is improved.

Description

Technical Field

[0001] The utility model discloses a revolving lantern circuit based on a triangle wave signal, belonging to the technical field of electronics. Background Art

[0002] A zoetrope, also known as a string of zoetrope lights, is made up of a series of LED lights connected in sequence. Each LED light turns on and off in sequence according to a predetermined effect. In order to achieve the perfect effect of a zoetrope light, it needs to be controlled by a special circuit. However, the existing signal is difficult to meet the requirements of the zoetrope light circuit, resulting in an unsatisfactory effect. In addition, the order and interval time of turning on and off of the zoetrope light are inconvenient to adjust. Therefore, it is particularly important to design a circuit to effectively process the input signal and realize the simple and adjustable order and time interval of turning on and off of the zoetrope light.

[0003] At present, it is difficult for traditional zoetrope control circuits to adjust the flashing order and time interval of the zoetrope, and chips are needed to realize the adjustment function. For example, the application number is 202220842055.7, and the patent name is a zoetrope control circuit. The flashing order of the zoetrope is adjusted by adding a chip. However, this method involves a single-chip microcomputer chip, which needs to be explained and taught, which greatly increases the teaching time. Therefore, in the electronic technology experimental teaching, in order to enable students to quickly understand and master the control principle of the zoetrope circuit, it is very necessary to design a circuit that does not involve a single-chip microcomputer chip and expresses the control principle of the zoetrope concisely and clearly. Summary of the invention

[0004] The technical problem solved by the utility model is: the utility model provides a zodiac lantern circuit based on a triangular wave signal, which effectively converts the input signal into the signal required by the zodiac lantern circuit by using a triangular wave signal generating circuit, a signal processing circuit and an LED lamp display module, and can realize simple and adjustable sequence and time interval of opening and closing the zodiac lantern.

[0005] The technical solution of the utility model is: a revolving lantern circuit based on a triangular wave signal, comprising a triangular wave signal generating circuit 1, a signal processing circuit 2 and an LED light display module 3;

[0006] The triangular wave signal generating circuit 1 is connected to the signal processing circuit 2, and the signal processing circuit is connected to the LED light display module 3. Specifically, one end of the signal processing circuit 2 is connected to the triangular wave signal generating circuit 1, and the other end is connected to the LED light display module 3, and the other end of the LED light display module 3 is grounded.

[0007] Furthermore, the triangle wave signal generating circuit 1 is used to convert the input signal into a triangle wave signal, the signal processing circuit 2 is used to amplify and raise the generated triangle wave signal to the range required by the LED display module, and the LED light display module 3 is used to receive the processed signal and display the revolving lantern control effect, wherein the order and interval of the LED light turning on and off can be adjusted by adjusting each variable resistor.

[0008] Furthermore, the triangle wave signal generating circuit 1 includes resistors R1, R2, R3, R4, R5, a capacitor C1, and operational amplifiers A1 and A2; one end of R1 is connected to the in-phase end of the operational amplifier A1, and the other end is connected to the output end of the operational amplifier A2; one end of the resistor R2 is connected in parallel with the resistor R1 to the in-phase end of the operational amplifier A1, and the other end is connected to the output end of the operational amplifier A1; one end of the resistor R3 is connected in parallel with the reverse end of the operational amplifier A1, and the other end is grounded; one end of the resistor R4 is connected in parallel with R2 to the output end of the operational amplifier A1, and the other end is connected to the reverse end of the operational amplifier A2; one end of the resistor R5 is connected to the in-phase end of the operational amplifier A2, and the other end is grounded; one end of the capacitor C1 is connected in parallel with R4 to the reverse end of the operational amplifier A2; The inverting end of the operational amplifier A1 is connected to the connecting end of R1 and R2, the inverting end of the operational amplifier A1 is connected to the output end of the operational amplifier A2 through R1, and is connected to the output end of the operational amplifier A1 through R2. The inverting end of the operational amplifier A1 is connected to the resistor R3, and the other end of the resistor R3 is grounded. The inverting end of the operational amplifier A2 is connected to the resistor R5, and the other end of the resistor R5 is grounded. The inverting end of the operational amplifier A2 is connected to the connecting end of the resistor R4 and the capacitor C1. The inverting end of the operational amplifier A2 is connected to the output end of the operational amplifier A1 through R4, and is connected to the output end of the operational amplifier A2 through the capacitor C1.

[0009] Furthermore, the signal processing circuit 2 includes operational amplifiers A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, resistors R6, R7, R8, R9, R10, R11, R12, R13, R15, R17, R19, R21, R23, R25, R27, variable resistors R14, R16, R18, R20, R22, R24, R26, R28, and a DC voltage source DC; the in-phase end of the operational amplifier A3 in the signal processing circuit 2 is connected to the resistor R7, the other end of the resistor R7 is connected to the output end of the operational amplifier A2, the connection point of the resistor R1 and the capacitor C1, the reverse end of the operational amplifier A3 is connected to the connection end of the resistors R6 and R8, and the reverse end of the operational amplifier A3 is connected to the connection end of the resistors R6 and R8. It is grounded through R8, and connected to the output end of the voltage amplifier A3 through resistor R6. The output end of the operational amplifier A3 is connected to resistor R9. The other end of resistor R9 is connected to the non-inverting end of the operational amplifier A4. The non-inverting end of the operational amplifier A4 is connected to the connection end of resistor R9 and resistor R10. The other end of R10 is a DC voltage source DC, and the other end of the DC voltage source DC is grounded. The reverse end of the operational amplifier A4 is connected to the connection point of resistors R11 and R12. The other end of R11 is grounded. The other end of R12 is connected to the output end of the operational amplifier A4. Resistor R13 and variable resistor R14 are connected in series to the power supply VCC end. The other end of the variable resistor R14 is grounded. Resistor R15 and variable resistor R16 are connected in series to the power supply VC C terminal, the other end of the variable resistor R16 is grounded, the resistor R17 and the variable resistor R18 are connected in series at the power supply VCC terminal, the other end of the variable resistor R18 is grounded, the resistor R19 and the variable resistor R20 are connected in series at the power supply VCC terminal, the other end of the variable resistor R20 is grounded, the resistor R21 and the variable resistor R22 are connected in series at the power supply VCC terminal, the other end of the variable resistor R22 is grounded, the resistor R23 and the variable resistor R24 ​​are connected in series at the power supply VCC terminal, the other end of the variable resistor R24 ​​is grounded, the resistor R25 and the variable resistor R26 are connected in series at the power supply VCC terminal, the other end of the variable resistor R26 is grounded, the resistor R27 and the variable resistor R28 are connected in series at the power supply VCC terminal, the other end of the variable resistor R28 is grounded, the operational amplifier The non-inverting terminal of amplifier A5 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A5 is connected to the connection point of resistor R13 and variable resistor R14, the output terminal of operational amplifier A5 is connected to the anode of LED lamp LED1, the non-inverting terminal of operational amplifier A6 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A6 is connected to the connection point of resistor R15 and variable resistor R16, the output terminal of operational amplifier A6 is connected to the anode of LED lamp LED2, the non-inverting terminal of operational amplifier A7 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A7 is connected to the connection point of resistor R17 and variable resistor R18, the output terminal of operational amplifier A7 is connected to the anode of LED lamp LED3,The non-inverting terminal of the operational amplifier A8 is connected to the output terminal of the operational amplifier A4, the reverse terminal of the operational amplifier A8 is connected to the connection point of the resistor R19 and the variable resistor R20, the output terminal of the operational amplifier A8 is connected to the anode of the LED lamp LED4, the non-inverting terminal of the operational amplifier A9 is connected to the output terminal of the operational amplifier A4, the reverse terminal of the operational amplifier A9 is connected to the connection point of the resistor R21 and the variable resistor R22, the output terminal of the operational amplifier A9 is connected to the anode of the LED lamp LED5, the non-inverting terminal of the operational amplifier A10 is connected to the output terminal of the operational amplifier A4, and the reverse terminal of the operational amplifier A10 is connected to the resistor R2 3 and the connection of the variable resistor R24, the output end of the operational amplifier A10 is connected to the anode of the LED lamp LED6, the non-inverting end of the operational amplifier A11 is connected to the output end of the operational amplifier A4, the reverse end of the operational amplifier A11 is connected to the connection of the resistor R25 and the variable resistor R26, the output end of the operational amplifier A11 is connected to the anode of the LED lamp LED7, the non-inverting end of the operational amplifier A12 is connected to the output end of the operational amplifier A4, the reverse end of the operational amplifier A12 is connected to the connection of the resistor R27 and the variable resistor R28, and the output end of the operational amplifier A12 is connected to the anode of the LED lamp LED8.

[0010] Furthermore, the LED light display module 3 includes LED lights LED1, LED2, LED3, LED4, LED5, LED6, LED7, and LED8; LED light LED1 is connected to the output end of operational amplifier A5, LED light LED2 is connected to the output end of operational amplifier A6, LED light LED3 is connected to the output end of operational amplifier A7, LED light LED4 is connected to the output end of operational amplifier A8, LED light LED5 is connected to the output end of operational amplifier A9, LED light LED6 is connected to the output end of operational amplifier A10, LED light LED7 is connected to the output end of operational amplifier A11, and LED light LED8 is connected to the output end of operational amplifier A12.

[0011] The working principle of the utility model is:

[0012] The triangle wave signal generating circuit 1 converts the input power supply signal into a triangle wave signal. The hysteresis comparator amplifier circuit where the operational amplifier A1 is located is used as the first-stage signal generating circuit to generate a square wave. The power supply signal becomes a square wave after passing through the hysteresis comparator circuit and enters the second-stage signal generating circuit where the operational amplifier A2 is located. This stage of the circuit integrates the square wave signal to generate a stable triangle wave signal and outputs it to the signal processing circuit 2.

[0013] The triangular wave signal enters the signal processing circuit 2 from the non-inverting end of the operational amplifier A3 through R7. The operational amplifier A3 amplifies the triangular wave signal to the voltage range required by the LED light display module 3. The triangular wave signal becomes a trapezoidal wave signal after passing through the operational amplifier A3, and is input from the non-inverting end of the operational amplifier A4 through the resistor R9. The DC voltage source DC is input from the non-inverting end of the operational amplifier A4 as a boost voltage to boost the trapezoidal wave signal to the voltage range required by the LED light display module. The raised trapezoidal wave is output from the output end of the operational amplifier A4 to each LED light display circuit branch. By adjusting the resistance of the variable resistors R14, R16, R18, R20, R22, R24, R26, and R28, the voltage amplitude of the reverse end of the input operational amplifiers A5, A6, A7, A8, A9, A10, A11, and A12 can be controlled respectively. When the voltage value of the trapezoidal wave signal input from the in-phase end of each operational amplifier is higher than the voltage value of the reverse end, the LED light of the circuit branch is turned on. Conversely, when the voltage value of the trapezoidal wave signal input from the in-phase end is lower than the voltage value of the reverse end, the LED light of the circuit branch is turned off. Therefore, by adjusting the resistance value of each variable resistor, the simple adjustable opening and closing sequence of the revolving lantern can be realized, and the time interval between opening and closing can be changed by increasing or decreasing the difference in resistance value.

[0014] The signals processed by the signal processing circuit 2 enter the anodes of the respective LED lamps through eight branches, thereby achieving the expected revolving lantern display effect.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a revolving lantern circuit based on a triangular wave signal, which utilizes a triangular wave signal generating circuit to convert an input signal, uses an operational amplifier to amplify and raise the triangular wave signal, outputs a signal that meets the needs of an LED lamp display module, controls the LED lamp display module with the output signal, and can realize the time interval of turning on and off the LED lamp by adjusting a variable resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the circuit principle of the utility model.

[0018] Figure 1 The numbers in the figure are: 1-triangle wave signal generating circuit, 2-signal processing circuit, 3-LED light display module, A1~A12-operational amplifier, R1~R13, R15, R17, R19, R21, R23, R25, R27-resistance, R14, R16, R18, R20, R22, R24, R26, R28-variable resistor, C1-capacitor, LED1~LED8-LED light, DC-direct current voltage source. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Example 1: Figure 1 As shown, a revolving lantern circuit based on a triangular wave signal includes a triangular wave signal generating circuit 1, a signal processing circuit 2 and an LED light display module 3;

[0021] Furthermore, the triangle wave signal generating circuit 1 includes resistors R1, R2, R3, R4, R5, a capacitor C1, and operational amplifiers A1 and A2; one end of R1 is connected to the in-phase end of the operational amplifier A1, and the other end is connected to the output end of the operational amplifier A2; one end of the resistor R2 is connected in parallel with the resistor R1 to the in-phase end of the operational amplifier A1, and the other end is connected to the output end of the operational amplifier A1; one end of the resistor R3 is connected in parallel with the reverse end of the operational amplifier A1, and the other end is grounded; one end of the resistor R4 is connected in parallel with R2 to the output end of the operational amplifier A1, and the other end is connected to the reverse end of the operational amplifier A2; one end of the resistor R5 is connected to the in-phase end of the operational amplifier A2, and the other end is grounded; one end of the capacitor C1 is connected in parallel with R4 to the reverse end of the operational amplifier A2; The inverting end of the operational amplifier A1 is connected to the connecting end of R1 and R2, the inverting end of the operational amplifier A1 is connected to the output end of the operational amplifier A2 through R1, and is connected to the output end of the operational amplifier A1 through R2. The inverting end of the operational amplifier A1 is connected to the resistor R3, and the other end of the resistor R3 is grounded. The inverting end of the operational amplifier A2 is connected to the resistor R5, and the other end of the resistor R5 is grounded. The inverting end of the operational amplifier A2 is connected to the connecting end of the resistor R4 and the capacitor C1. The inverting end of the operational amplifier A2 is connected to the output end of the operational amplifier A1 through R4, and is connected to the output end of the operational amplifier A2 through the capacitor C1.

[0022] Furthermore, the signal processing circuit 2 includes operational amplifiers A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, resistors R6, R7, R8, R9, R10, R11, R12, R13, R15, R17, R19, R21, R23, R25, R27, variable resistors R14, R16, R18, R20, R22, R24, R26, R28, and a DC voltage source DC; the in-phase end of the operational amplifier A3 in the signal processing circuit 2 is connected to the resistor R7, the other end of the resistor R7 is connected to the output end of the operational amplifier A2, the connection point of the resistor R1 and the capacitor C1, the reverse end of the operational amplifier A3 is connected to the connection end of the resistors R6 and R8, and the reverse end of the operational amplifier A3 is connected to the connection end of the resistors R6 and R8. It is grounded through R8, and connected to the output end of the voltage amplifier A3 through resistor R6. The output end of the operational amplifier A3 is connected to resistor R9. The other end of resistor R9 is connected to the non-inverting end of the operational amplifier A4. The non-inverting end of the operational amplifier A4 is connected to the connection end of resistor R9 and resistor R10. The other end of R10 is a DC voltage source DC, and the other end of the DC voltage source DC is grounded. The reverse end of the operational amplifier A4 is connected to the connection point of resistors R11 and R12. The other end of R11 is grounded. The other end of R12 is connected to the output end of the operational amplifier A4. Resistor R13 and variable resistor R14 are connected in series to the power supply VCC end. The other end of the variable resistor R14 is grounded. Resistor R15 and variable resistor R16 are connected in series to the power supply VC C terminal, the other end of the variable resistor R16 is grounded, the resistor R17 and the variable resistor R18 are connected in series at the power supply VCC terminal, the other end of the variable resistor R18 is grounded, the resistor R19 and the variable resistor R20 are connected in series at the power supply VCC terminal, the other end of the variable resistor R20 is grounded, the resistor R21 and the variable resistor R22 are connected in series at the power supply VCC terminal, the other end of the variable resistor R22 is grounded, the resistor R23 and the variable resistor R24 ​​are connected in series at the power supply VCC terminal, the other end of the variable resistor R24 ​​is grounded, the resistor R25 and the variable resistor R26 are connected in series at the power supply VCC terminal, the other end of the variable resistor R26 is grounded, the resistor R27 and the variable resistor R28 are connected in series at the power supply VCC terminal, the other end of the variable resistor R28 is grounded, the operational amplifier The non-inverting terminal of amplifier A5 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A5 is connected to the connection point of resistor R13 and variable resistor R14, the output terminal of operational amplifier A5 is connected to the anode of LED lamp LED1, the non-inverting terminal of operational amplifier A6 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A6 is connected to the connection point of resistor R15 and variable resistor R16, the output terminal of operational amplifier A6 is connected to the anode of LED lamp LED2, the non-inverting terminal of operational amplifier A7 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A7 is connected to the connection point of resistor R17 and variable resistor R18, the output terminal of operational amplifier A7 is connected to the anode of LED lamp LED3,The non-inverting terminal of the operational amplifier A8 is connected to the output terminal of the operational amplifier A4, the reverse terminal of the operational amplifier A8 is connected to the connection point of the resistor R19 and the variable resistor R20, the output terminal of the operational amplifier A8 is connected to the anode of the LED lamp LED4, the non-inverting terminal of the operational amplifier A9 is connected to the output terminal of the operational amplifier A4, the reverse terminal of the operational amplifier A9 is connected to the connection point of the resistor R21 and the variable resistor R22, the output terminal of the operational amplifier A9 is connected to the anode of the LED lamp LED5, the non-inverting terminal of the operational amplifier A10 is connected to the output terminal of the operational amplifier A4, and the reverse terminal of the operational amplifier A10 is connected to the resistor R2 3 and the connection of the variable resistor R24, the output end of the operational amplifier A10 is connected to the anode of the LED lamp LED6, the non-inverting end of the operational amplifier A11 is connected to the output end of the operational amplifier A4, the reverse end of the operational amplifier A11 is connected to the connection of the resistor R25 and the variable resistor R26, the output end of the operational amplifier A11 is connected to the anode of the LED lamp LED7, the non-inverting end of the operational amplifier A12 is connected to the output end of the operational amplifier A4, the reverse end of the operational amplifier A12 is connected to the connection of the resistor R27 and the variable resistor R28, and the output end of the operational amplifier A12 is connected to the anode of the LED lamp LED8.

[0023] Furthermore, the LED light display module 3 includes LED lights LED1, LED2, LED3, LED4, LED5, LED6, LED7, and LED8; LED light LED1 is connected to the output end of operational amplifier A5, LED light LED2 is connected to the output end of operational amplifier A6, LED light LED3 is connected to the output end of operational amplifier A7, LED light LED4 is connected to the output end of operational amplifier A8, LED light LED5 is connected to the output end of operational amplifier A9, LED light LED6 is connected to the output end of operational amplifier A10, LED light LED7 is connected to the output end of operational amplifier A11, and LED light LED8 is connected to the output end of operational amplifier A12.

[0024] The triangle wave signal generating circuit 1 converts the input power supply signal into a triangle wave signal. The hysteresis comparator amplifier circuit where the operational amplifier A1 is located is used as the first-stage signal generating circuit to generate a square wave. The power supply signal becomes a square wave after passing through the hysteresis comparator circuit and enters the second-stage signal generating circuit where the operational amplifier A2 is located. This stage of the circuit integrates the square wave signal to generate a stable triangle wave signal and outputs it to the signal processing circuit 2.

[0025] The triangular wave signal enters the signal processing circuit 2 from the non-inverting end of the operational amplifier A3 through R7. The operational amplifier A3 amplifies the triangular wave signal to the voltage range required by the LED light display module 3. The triangular wave signal becomes a trapezoidal wave signal after passing through the operational amplifier A3, and is input from the non-inverting end of the operational amplifier A4 through the resistor R9. The DC voltage source DC is input from the non-inverting end of the operational amplifier A4 as a boost voltage to boost the trapezoidal wave signal to the voltage range required by the LED light display module. The raised trapezoidal wave is output from the output end of the operational amplifier A4 to each LED light display circuit branch. By adjusting the resistance of the variable resistors R14, R16, R18, R20, R22, R24, R26, and R28, the voltage amplitude of the reverse end of the input operational amplifiers A5, A6, A7, A8, A9, A10, A11, and A12 can be controlled respectively. When the voltage value of the trapezoidal wave signal input from the in-phase end of each operational amplifier is higher than the voltage value of the reverse end, the LED light of the circuit branch is turned on. Conversely, when the voltage value of the trapezoidal wave signal input from the in-phase end is lower than the voltage value of the reverse end, the LED light of the circuit branch is turned off. Therefore, by adjusting the resistance value of each variable resistor, the simple adjustable opening and closing sequence of the revolving lantern can be realized, and the time interval between opening and closing can be changed by increasing or decreasing the difference in resistance value.

[0026] The signals processed by the signal processing circuit 2 enter the anodes of the respective LED lamps through eight branches, thereby achieving the expected revolving lantern display effect.

[0027] The specific embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A revolving lantern circuit based on a triangular wave signal, characterized in that: The invention comprises a triangular wave signal generating circuit (1), a signal processing circuit (2), and an LED light display module (3); the triangular wave signal generating circuit (1) is connected to the signal processing circuit (2); one end of the signal processing circuit (2) is connected to the triangular wave signal generating circuit (1), and the other end is connected to the LED light display module (3); and the other end of the LED light display module (3) is grounded.

2. The revolving lantern circuit based on a triangular wave signal according to claim 1, characterized in that: The triangle wave signal generating circuit (1) is used to convert an input signal into a triangle wave signal, the signal processing circuit (2) is used to amplify and raise the generated triangle wave signal, and the LED light display module (3) is used to receive the processed signal and display the revolving lantern control effect, wherein the sequence and interval of lighting and extinguishing the LED light can be adjusted by adjusting each variable resistor.

3. The revolving lantern circuit based on a triangular wave signal according to claim 1, characterized in that: The triangular wave signal generating circuit (1) comprises resistors R1, R2, R3, R4, R5, a capacitor C1, and operational amplifiers A1 and A2; one end of R1 is connected to the in-phase end of the operational amplifier A1, and the other end is connected to the output end of the operational amplifier A2; one end of the resistor R2 is connected in parallel with the resistor R1 to the in-phase end of the operational amplifier A1, and the other end is connected to the output end of the operational amplifier A1; one end of the resistor R3 is connected in parallel with the reverse end of the operational amplifier A1, and the other end is grounded; one end of the resistor R4 is connected in parallel with R2 to the output end of the operational amplifier A1, and the other end is connected to the reverse end of the operational amplifier A2; one end of the resistor R5 is connected to the in-phase end of the operational amplifier A2, and the other end is grounded; one end of the capacitor C1 is connected in parallel with R4 to the reverse end of the operational amplifier A2. The inverting end of the operational amplifier A1 is connected to the connection end of R1 and R2, the inverting end of the operational amplifier A1 is connected to the output end of the operational amplifier A2 through R1, and is connected to the output end of the operational amplifier A1 through R2. The inverting end of the operational amplifier A1 is connected to the resistor R3, and the other end of the resistor R3 is grounded. The inverting end of the operational amplifier A2 is connected to the resistor R5, and the other end of the resistor R5 is grounded. The inverting end of the operational amplifier A2 is connected to the connection end of the resistor R4 and the capacitor C1. The inverting end of the operational amplifier A2 is connected to the output end of the operational amplifier A1 through R4, and is connected to the output end of the operational amplifier A2 through the capacitor C1.

4. The revolving lantern circuit based on a triangular wave signal according to claim 1, characterized in that: The signal processing circuit (2) comprises operational amplifiers A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, resistors R6, R7, R8, R9, R10, R11, R12, R13, R15, R17, R19, R21, R23, R25, R27, variable resistors R14, R16, R18, R20, R22, R24, R26, R28, and a DC voltage source DC; the in-phase end of the operational amplifier A3 in the signal processing circuit (2) is connected to the resistor R7, the other end of the resistor R7 is connected to the output end of the operational amplifier A2, the connection point of the resistor R1 and the capacitor C1, the inverting end of the operational amplifier A3 is connected to the connection end of the resistors R6 and R8, and the inverting end of the operational amplifier A3 is connected to the connection end of the resistors R6 and R8. The output end of the operational amplifier A3 is connected to the resistor R9, the other end of the resistor R9 is connected to the non-inverting end of the operational amplifier A4, the non-inverting end of the operational amplifier A4 is connected to the connection end of the resistor R9 and the resistor R10, the other end of R10 is connected to the DC voltage source DC, the other end of the DC voltage source DC is grounded, the reverse end of the operational amplifier A4 is connected to the connection point of the resistors R11 and R12, the other end of R11 is grounded, the other end of R12 is connected to the output end of the operational amplifier A4, the resistor R13 and the variable resistor R14 are connected in series to the power supply VCC end, the other end of the variable resistor R14 is grounded, and the resistor R15 and the variable resistor R16 are connected in series to the power supply VC C terminal, the other end of the variable resistor R16 is grounded, the resistor R17 and the variable resistor R18 are connected in series at the power supply VCC terminal, the other end of the variable resistor R18 is grounded, the resistor R19 and the variable resistor R20 are connected in series at the power supply VCC terminal, the other end of the variable resistor R20 is grounded, the resistor R21 and the variable resistor R22 are connected in series at the power supply VCC terminal, the other end of the variable resistor R22 is grounded, the resistor R23 and the variable resistor R24 ​​are connected in series at the power supply VCC terminal, the other end of the variable resistor R24 ​​is grounded, the resistor R25 and the variable resistor R26 are connected in series at the power supply VCC terminal, the other end of the variable resistor R26 is grounded, the resistor R27 and the variable resistor R28 are connected in series at the power supply VCC terminal, the other end of the variable resistor R28 is grounded, the operational amplifier The non-inverting terminal of amplifier A5 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A5 is connected to the connection point of resistor R13 and variable resistor R14, the output terminal of operational amplifier A5 is connected to the anode of LED lamp LED1, the non-inverting terminal of operational amplifier A6 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A6 is connected to the connection point of resistor R15 and variable resistor R16, the output terminal of operational amplifier A6 is connected to the anode of LED lamp LED2, the non-inverting terminal of operational amplifier A7 is connected to the output terminal of operational amplifier A4, the reverse terminal of operational amplifier A7 is connected to the connection point of resistor R17 and variable resistor R18, the output terminal of operational amplifier A7 is connected to the anode of LED lamp LED3,The non-inverting terminal of the operational amplifier A8 is connected to the output terminal of the operational amplifier A4, the reverse terminal of the operational amplifier A8 is connected to the connection point of the resistor R19 and the variable resistor R20, the output terminal of the operational amplifier A8 is connected to the anode of the LED lamp LED4, the non-inverting terminal of the operational amplifier A9 is connected to the output terminal of the operational amplifier A4, the reverse terminal of the operational amplifier A9 is connected to the connection point of the resistor R21 and the variable resistor R22, the output terminal of the operational amplifier A9 is connected to the anode of the LED lamp LED5, the non-inverting terminal of the operational amplifier A10 is connected to the output terminal of the operational amplifier A4, and the reverse terminal of the operational amplifier A10 is connected to the resistor R2 3 and the connection of the variable resistor R24, the output end of the operational amplifier A10 is connected to the anode of the LED lamp LED6, the non-inverting end of the operational amplifier A11 is connected to the output end of the operational amplifier A4, the reverse end of the operational amplifier A11 is connected to the connection of the resistor R25 and the variable resistor R26, the output end of the operational amplifier A11 is connected to the anode of the LED lamp LED7, the non-inverting end of the operational amplifier A12 is connected to the output end of the operational amplifier A4, the reverse end of the operational amplifier A12 is connected to the connection of the resistor R27 and the variable resistor R28, and the output end of the operational amplifier A12 is connected to the anode of the LED lamp LED8.

5. The revolving lantern circuit based on a triangular wave signal according to claim 1, characterized in that: The LED lamp display module (3) comprises LED lamps LED1, LED2, LED3, LED4, LED5, LED6, LED7 and LED8; LED lamp LED1 is connected to the output end of operational amplifier A5, LED lamp LED2 is connected to the output end of operational amplifier A6, LED lamp LED3 is connected to the output end of operational amplifier A7, LED lamp LED4 is connected to the output end of operational amplifier A8, LED lamp LED5 is connected to the output end of operational amplifier A9, LED lamp LED6 is connected to the output end of operational amplifier A10, LED lamp LED7 is connected to the output end of operational amplifier A11 and LED lamp LED8 is connected to the output end of operational amplifier A12.

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