A motorcycle turn signal flasher circuit

Abstract

The utility model discloses a kind of steering lamp flash relay circuit for motorcycle, including: power module, signal processing module, control module, frequency adaptive module, relay module, steering lamp output module;Power module is connected with signal processing module, steering lamp output module, control module, frequency adaptive module respectively, control module is connected with signal processing module, frequency adaptive module, relay module, steering lamp output module respectively.This scheme integrates steering, brake, different stage flash control of driving, flicker and sound are sent when steering, left and right light is simultaneously flickered when braking, frequency is adaptively regulated with vehicle speed when driving, high-power relay replaces buzzer to improve sound, also be equipped with optional functions such as flash, all-around enhance the prompt of rear vehicle, improve driving safety.

Description

Technical Field

[0001] This utility model belongs to the field of turn signal circuit technology, and relates to a turn signal flashing relay circuit for motorcycles. Background Technology

[0002] Currently, in the field of motorcycle turn signal circuit technology, existing motorcycle turn signal flasher relays generally suffer from limited functionality. They can only provide basic turn signal flashing, failing to effectively warn following vehicles under different driving conditions such as riding and braking. Specifically, in existing technology, the turn signal flasher relays offer weak warnings to following vehicles during driving, and when using a buzzer as an audible warning, the sound is weak and fails to attract the attention of following drivers. Furthermore, the flashing frequency of existing flasher relays is often fixed, lacking an adaptive adjustment mechanism, and cannot automatically adjust the flashing frequency according to the motorcycle's speed, resulting in poor warning effectiveness at different speeds. These shortcomings make existing motorcycle turn signal flasher relays a safety hazard in practical use and unable to meet the increasingly demanding requirements for driving safety. Summary of the Invention

[0003] To address the problems existing in the background technology, this utility model proposes a turn signal flasher relay circuit for motorcycles.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a turn signal flashing relay circuit for motorcycles, comprising: a power supply module, a signal processing module, a control module, a frequency adaptive module, a relay module, and a turn signal output module;

[0005] The power supply module is connected to the signal processing module, the turn signal output module, the control module, and the frequency adaptive module, respectively. The control module is connected to the signal processing module, the frequency adaptive module, the relay module, and the turn signal output module, respectively.

[0006] The power module includes: diode D1, power chip U3, capacitor C7, capacitor C6, and capacitor C5;

[0007] The +12V input power supply is connected to the anode of diode D1 and one end of capacitor C7. The cathode of diode D1 is connected to one end of capacitor C6 and the VIN pin of power chip U3. The VOUT pin of power chip U3 is connected to one end of capacitor C5. The other end of capacitor C7 is connected to the other end of capacitor C6, the GND pin of power chip U3, the other end of capacitor C5, and ground.

[0008] The main control module includes: control chip U1, resistor R6, resistor R3, capacitor C1, and capacitor C2;

[0009] The VOUT pin of the power chip U3 is connected to one end of resistor R6, one end of resistor R3, the first pin of the control chip U1, and one end of capacitor C1. One end of capacitor C1 is connected to the fourteenth pin of the control chip U1, one end of capacitor C2, and ground. The other end of resistor R6 is connected to the third pin of the control chip U1, the other end of resistor R3 is connected to the second pin of the control chip U1, and the other end of capacitor C2 is connected to the thirteenth pin of the control chip U1.

[0010] The signal processing module includes: resistor R5, resistor R20, capacitor C4, transistor Q2, resistor R2, resistor R4, resistor R21, capacitor C3, transistor Q1, resistor R1, resistor R23, resistor R24, transistor Q10, and resistor R26.

[0011] One end of resistor R5 is connected to one end of resistor R20, one end of capacitor C4, and the base of transistor Q2. The other end of resistor R20 is connected to the other end of capacitor C4, the emitter of transistor Q2, and ground. The collector of transistor Q2 is connected to one end of resistor R2 and the eleventh pin of control chip U1. The other end of resistor R2 is connected to the VOUT pin of power chip U3.

[0012] One end of resistor R4 is connected to one end of resistor R21, one end of capacitor C3, and the base of transistor Q1. The other end of resistor R21 is connected to the other end of capacitor C3, the emitter of transistor Q1, and ground. The collector of transistor Q1 is connected to one end of resistor R1 and the twelfth pin of control chip U1. The other end of resistor R1 is connected to the VOUT pin of power chip U3.

[0013] One end of resistor R23 is connected to one end of resistor R24 ​​and the base of transistor Q10. The other end of resistor R24 ​​is connected to the emitter of transistor Q2 and ground. The collector of transistor Q2 is connected to one end of resistor R26 and the seventh pin of control chip U1. The other end of resistor R26 is connected to the VOUT pin of power chip U3.

[0014] The turn signal output module includes: MOSFET Q5, Zener diode Z1, resistor R14, resistor R12, transistor Q7, resistor R16, resistor R19, resistor R17, resistor R18, transistor Q8, resistor R13, resistor R15, Zener diode Z2, MOSFET Q6, resistor R11, resistor R10, transistor Q3, resistor R9, diode D2, resistor R8, capacitor C8, transistor Q4, and resistor R7;

[0015] The gate of MOSFET Q5 is connected to the anode of Zener diode Z1 and one end of resistor R14. The other end of resistor R14 is connected to one end of resistor R12 and the collector of transistor Q7. The base of transistor Q7 is connected to one end of resistor R16 and one end of resistor R19. The emitter of transistor Q7 is connected to the other end of resistor R19, the other end of resistor R18, the emitter of transistor Q8, and ground. The base of transistor Q8 is connected to one end of resistor R18 and one end of resistor R17. The collector of transistor Q8 is connected to one end of resistor R15 and one end of resistor R13. The other end of resistor R15 is connected to the anode of Zener diode Z2 and the gate of MOSFET Q6. The drain of MOSFET Q5 is connected to the cathode of Zener diode Z1, the other end of resistor R12, and the other end of resistor R13. One end of the resistor is connected to the cathode of Zener diode Z2, one end of resistor R11, the drain of MOSFET Q6, and one end of resistor R10. The other end of resistor R10 is connected to the collector of transistor Q3 and the VOUT pin of power chip U3. The other end of resistor R11 is connected to the base of transistor Q3. The emitter of transistor Q3 is connected to one end of resistor R9. The other end of resistor R9 is connected to the anode of diode D2. The cathode of diode D2 is connected to one end of resistor R8 and one end of capacitor C8. The other end of resistor R8 is connected to the base of transistor Q4. The other end of capacitor C8 is connected to the emitter of transistor Q4 and ground. The collector of transistor Q4 is connected to one end of resistor R7. The collector of transistor Q4 is also connected to the common terminal of capacitor C2 and the thirteenth pin of control chip U1.

[0016] The frequency adaptive module includes: capacitor C30, resistor R35, resistor R33, resistor R34, resistor R38, transistor Q20, logic chip U2, capacitor C31, capacitor C32, capacitor C34, resistor R37, resistor R36, and capacitor C33.

[0017] One end of capacitor C30 is connected to one end of resistor R13 and one end of resistor R35. The other end of resistor R33 is connected to the base of transistor Q20. The other end of resistor R35 is connected to the VOUT pin of power chip U3, one end of resistor R34, and one end of resistor R38. The other end of resistor R34 is connected to the fifth pin of logic chip U2 and the collector of transistor Q20. The emitter of transistor Q20 is connected to ground. The other end of resistor R38 is connected to the second pin of logic chip U2 and one end of capacitor C34. The first pin of logic chip U2 is connected to the fourth, eighth, and ninth pins of logic chip U2. The third pin of logic chip U2 is connected to the logic... Pin 12 of chip U2 is connected to pin 13 of logic chip U2. Pin 7 of logic chip U2 is connected to ground. Pin 10 of logic chip U2 is connected to one end of capacitor C31. The other end of capacitor C31 is connected to pin 6 of logic chip U2 and one end of resistor R36. The other end of resistor R36 is connected to the VOUT pin of power chip U3. Pin 11 of logic chip U2 is connected to the other end of capacitor C14 and one end of resistor R37. The other end of resistor R37 is connected to one end of capacitor C33 and pin 9 of control chip U1. The other end of capacitor C33 is connected to ground. Pin 14 of logic chip U2 is connected to one end of capacitor C32. The other end of capacitor C32 is connected to ground.

[0018] The relay module includes: resistor R25, resistor R26, transistor Q11, diode D4, and relay;

[0019] The eighth pin of the control chip U1 is connected to one end of resistor R25. The other end of resistor R25 is connected to the base of transistor Q11 and one end of resistor R26. The other end of resistor R26 is connected to the emitter of transistor Q11 and ground. The collector of transistor Q11 is connected to one end of the relay. The other end of the relay is connected to the +12V power supply. Diode D4 is connected in parallel across the relay.

[0020] Compared with existing technologies, this utility model has the following advantages: This solution integrates different flashing frequencies for turn signals during steering, braking, and driving, providing a clear warning to following vehicles. A high-power relay is used to strike the housing to produce a sound, replacing the buzzer which is less noticeable. The frequency adaptive module automatically adjusts the flashing frequency during driving. This solves the problem of providing warnings to following vehicles at various stages of motorcycle operation—steering, braking, and driving—enhancing driving safety and improving the warning effect on following vehicles. Attached Figure Description

[0021] Figure 1 This is a main block diagram of a motorcycle turn signal flasher relay circuit according to this utility model;

[0022] Figure 2 This is a circuit connection diagram of a motorcycle turn signal flasher relay according to the present invention;

[0023] Figure 3 This is the circuit diagram of the flash unit in the working state of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-3 As shown, the technical solution adopted by this utility model is as follows: a turn signal flashing relay circuit for motorcycles, comprising: a power supply module, a signal processing module, a control module, a frequency adaptive module, a relay module, and a turn signal output module.

[0026] The power supply module is connected to the signal processing module, the turn signal output module, the control module, and the frequency adaptive module, respectively. The control module is connected to the signal processing module, the frequency adaptive module, the relay module, and the turn signal output module, respectively.

[0027] The power module includes: diode D1, power chip U3, capacitor C7, capacitor C6, and capacitor C5.

[0028] The +12V input power supply is connected to the anode of diode D1 and one end of capacitor C7. The cathode of diode D1 is connected to one end of capacitor C6 and the VIN pin of power chip U3. The VOUT pin of power chip U3 is connected to one end of capacitor C5. The other end of capacitor C7 is connected to the other end of capacitor C6, the GND pin of power chip U3, the other end of capacitor C5, and ground.

[0029] The power supply chip U3 uses the 78L05, a three-terminal fixed voltage regulator IC. It is a low-power version of the 78 series voltage regulator chip, packaged in a TO-92 package. Its compact size makes it suitable for integration into the compact circuit of a motorcycle turn signal relay. Its core function is to stabilize the input DC voltage to a +5V output.

[0030] The power module uses diode D1 to prevent reverse connection and power chip U3 to regulate the +12V input voltage to a stable level. Capacitors C7, C6, and C5 further filter the voltage, eliminating fluctuations. Its core function is to provide a stable and reliable power supply to the signal processing module, control module, frequency adaptive module, relay module, and turn signal output module, ensuring the entire circuit system operates under a stable voltage environment and preventing malfunctions caused by power fluctuations.

[0031] The main control module includes: control chip U1, resistor R6, resistor R3, capacitor C1, and capacitor C2.

[0032] The VOUT pin of the power chip U3 is connected to one end of resistor R6, one end of resistor R3, the first pin of the control chip U1, and one end of capacitor C1. One end of capacitor C1 is connected to the fourteenth pin of the control chip U1, one end of capacitor C2, and ground. The other end of resistor R6 is connected to the third pin of the control chip U1, the other end of resistor R3 is connected to the second pin of the control chip U1, and the other end of capacitor C2 is connected to the thirteenth pin of the control chip U1.

[0033] The main control module is centered around the control chip U1, and consists of resistors R6 and R3, and capacitors C1 and C2 to form a logic control unit. The module receives electrical signals such as steering and braking signals from the signal processing module, processes them through internal preset logic, and generates control commands. These commands are used to adjust the frequency parameters of the frequency adaptive module, the start / stop actions of the relay module, and the flashing mode of the turn signal output module. Its core function is to coordinate the work of each module according to different vehicle driving states, such as steering, braking, and driving, to achieve precise control of the turn signals in different scenarios, such as a flashing frequency of 85 times / minute during steering and synchronous flashing of the left and right lights during braking.

[0034] The signal processing module includes: resistor R5, resistor R20, capacitor C4, transistor Q2, resistor R2, resistor R4, resistor R21, capacitor C3, transistor Q1, resistor R1, resistor R23, resistor R24, transistor Q10, and resistor R26.

[0035] One end of resistor R5 is connected to one end of resistor R20, one end of capacitor C4, and the base of transistor Q2. The other end of resistor R20 is connected to the other end of capacitor C4, the emitter of transistor Q2, and ground. The collector of transistor Q2 is connected to one end of resistor R2 and the eleventh pin of control chip U1. The other end of resistor R2 is connected to the VOUT pin of power chip U3.

[0036] One end of resistor R4 is connected to one end of resistor R21, one end of capacitor C3, and the base of transistor Q1. The other end of resistor R21 is connected to the other end of capacitor C3, the emitter of transistor Q1, and ground. The collector of transistor Q1 is connected to one end of resistor R1 and the twelfth pin of control chip U1. The other end of resistor R1 is connected to the VOUT pin of power chip U3.

[0037] One end of resistor R23 is connected to one end of resistor R24 ​​and the base of transistor Q10. The other end of resistor R24 ​​is connected to the emitter of transistor Q2 and ground. The collector of transistor Q2 is connected to one end of resistor R26 and the seventh pin of control chip U1. The other end of resistor R26 is connected to the VOUT pin of power chip U3.

[0038] The INR signal is the right turn signal, which is input to the circuit through resistor R5. The INL signal is the left turn signal, which is input to the circuit through resistor R4. The INSC signal is the brake signal, which is input to the circuit through resistor R23. The IN2 signal is the right turn signal, which is transmitted to the control chip U1 through resistor R2. The IN2 signal is the turn signal, which is transmitted to the control chip U1 through resistor R1. The SC signal is the turn signal, which is transmitted to the control chip U1 through resistor R26.

[0039] The signal processing module consists of a signal acquisition and amplification circuit composed of resistors, capacitors, transistors, and other components. When the turn signal switch or brake switch is activated, the circuit acquires the signal through resistors R5 and R4, filters it through capacitors C4 and C3, and then amplifies the signal through transistors Q2 and Q1, converting the on / off signal of the mechanical switch into an electrical signal recognizable by the control chip U1. Its function is to accurately capture vehicle steering, braking, and other status signals, preprocess them, and provide accurate input signals to the control module to ensure the correctness of subsequent control logic.

[0040] The turn signal output module includes: MOSFET Q5, Zener diode Z1, resistor R14, resistor R12, transistor Q7, resistor R16, resistor R19, resistor R17, resistor R18, transistor Q8, resistor R13, resistor R15, Zener diode Z2, MOSFET Q6, resistor R11, resistor R10, transistor Q3, resistor R9, diode D2, resistor R8, capacitor C8, transistor Q4, and resistor R7.

[0041] The gate of MOSFET Q5 is connected to the anode of Zener diode Z1 and one end of resistor R14. The other end of resistor R14 is connected to one end of resistor R12 and the collector of transistor Q7. The base of transistor Q7 is connected to one end of resistor R16 and one end of resistor R19. The emitter of transistor Q7 is connected to the other end of resistor R19, the other end of resistor R18, the emitter of transistor Q8, and ground. The base of transistor Q8 is connected to one end of resistor R18 and one end of resistor R17. The collector of transistor Q8 is connected to one end of resistor R15 and one end of resistor R13. The other end of resistor R15 is connected to the anode of Zener diode Z2 and the gate of MOSFET Q6. The drain of MOSFET Q5 is connected to the cathode of Zener diode Z1, the other end of resistor R12, and the other end of resistor R13. One end of the resistor is connected to the cathode of Zener diode Z2, one end of resistor R11, the drain of MOSFET Q6, and one end of resistor R10. The other end of resistor R10 is connected to the collector of transistor Q3 and the VOUT pin of power chip U3. The other end of resistor R11 is connected to the base of transistor Q3. The emitter of transistor Q3 is connected to one end of resistor R9. The other end of resistor R9 is connected to the anode of diode D2. The cathode of diode D2 is connected to one end of resistor R8 and one end of capacitor C8. The other end of resistor R8 is connected to the base of transistor Q4. The other end of capacitor C8 is connected to the emitter of transistor Q4 and ground. The collector of transistor Q4 is connected to one end of resistor R7. The collector of transistor Q4 is also connected to the common terminal of capacitor C2 and the thirteenth pin of control chip U1.

[0042] LL is the left turn signal, output through the emitter of MOSFET Q6. LR is the right turn signal, output through the emitter of MOSFET Q5. OUT R is the right turn control terminal, output through resistor R16. OUT L is the left turn control terminal, output through resistor R17. SHORT is the short-circuit protection signal, transmitted to control chip U1 through resistor R7.

[0043] The module uses MOSFETs Q5 and Q6 as its core switches, along with Zener diodes Z1 and Z2, and transistors Q3 and Q4. Under the control module's command, MOSFETs Q5 and Q6 are turned on or off, driving the left and right turn signals: the corresponding turn signal flashes at a certain frequency when turning, and flashes synchronously when braking. The Zener diodes protect the circuit from damage caused by transient high voltage, while the transistors and other components work together to control the current flow. Its function is to precisely control the flashing mode and frequency of the turn signals according to different driving conditions, while ensuring the module's safe operation through the protection circuit, providing a clear visual warning signal to following vehicles.

[0044] The frequency adaptive module includes: capacitor C30, resistor R35, resistor R33, resistor R34, resistor R38, transistor Q20, logic chip U2, capacitor C31, capacitor C32, capacitor C34, resistor R37, resistor R36, and capacitor C33.

[0045] One end of capacitor C30 is connected to one end of resistor R13 and one end of resistor R35. The other end of resistor R33 is connected to the base of transistor Q20. The other end of resistor R35 is connected to the VOUT pin of power chip U3, one end of resistor R34, and one end of resistor R38. The other end of resistor R34 is connected to the fifth pin of logic chip U2 and the collector of transistor Q20. The emitter of transistor Q20 is connected to ground. The other end of resistor R38 is connected to the second pin of logic chip U2 and one end of capacitor C34. The first pin of logic chip U2 is connected to the fourth, eighth, and ninth pins of logic chip U2. The third pin of logic chip U2 is connected to the logic... Pin 12 of chip U2 is connected to pin 13 of logic chip U2. Pin 7 of logic chip U2 is connected to ground. Pin 10 of logic chip U2 is connected to one end of capacitor C31. The other end of capacitor C31 is connected to pin 6 of logic chip U2 and one end of resistor R36. The other end of resistor R36 is connected to the VOUT pin of power chip U3. Pin 11 of logic chip U2 is connected to the other end of capacitor C14 and one end of resistor R37. The other end of resistor R37 is connected to one end of capacitor C33 and pin 9 of control chip U1. The other end of capacitor C33 is connected to ground. Pin 14 of logic chip U2 is connected to one end of capacitor C32. The other end of capacitor C32 is connected to ground.

[0046] The logic chip U2 uses the CD4011B, a 4-channel, dual-input, 3V to 18V CMOS NAND gate integrated circuit with an operating temperature range of -55°C to 125°C, meeting the usage requirements of motorcycles in various environments. Its input type is standard CMOS, and its output type is push-pull, with standard speed and a maximum data rate of 8Mbps. It can stably and quickly process signals in this circuit.

[0047] INTIN is the speed signal input, which is transmitted to the control chip U1 by resistor R37.

[0048] The frequency adaptive module collects an electrical signal related to vehicle speed through capacitor C30 and resistor R35, amplifies it via transistor Q20, and then inputs it to logic chip U2. Logic chip U2 processes the signal, generates a frequency control signal positively correlated with vehicle speed, and transmits it to control chip U1. Its function is to automatically adjust the flashing frequency of the turn signals according to the vehicle speed while driving; the faster the vehicle speed, the higher the flashing frequency. This dynamically changing flashing frequency enhances the warning effect on following vehicles, solving the problem of insufficient warning from traditional fixed-frequency flashing at different vehicle speeds.

[0049] The relay module includes: resistor R25, resistor R26, transistor Q11, diode D4, and relay.

[0050] The eighth pin of the control chip U1 is connected to one end of resistor R25. The other end of resistor R25 is connected to the base of transistor Q11 and one end of resistor R26. The other end of resistor R26 is connected to the emitter of transistor Q11 and ground. The collector of transistor Q11 is connected to one end of the relay. The other end of the relay is connected to the +12V power supply. Diode D4 is connected in parallel across the relay.

[0051] The signal output from control chip U1 drives transistor Q11 to conduct or cut off via resistors R25 and R26, thereby controlling the activation and deactivation of the relay. When the relay activates, it emits a "tick" sound by striking its housing, replacing the traditional buzzer. Its function is to provide a clear audible alert, solving the problem of the buzzer's indistinct sound. During turning, driving, and other maneuvers, the audible alert assists the visual flashing, further enhancing the warning effect for vehicles behind.

[0052] Example 1: As Figure 3 As shown, when the vehicle turns on the turn signal switch K1, the control chip U1 outputs a command to drive the relay module to operate. The high-power relay is engaged or disengaged, and the corresponding L or R turn signal flashes at a frequency of 85 times / minute, accompanied by a "tick" sound.

[0053] When the vehicle engages brake K2, the signal is also input to the control chip U1 via the signal processing module, and the turn signals L and R flash 8 times simultaneously. If turn signal K1 and brake K2 are engaged simultaneously, the vehicle enters turn signal mode, and the corresponding L or R turn signal flashes 85 times per minute, accompanied by a ticking sound.

[0054] During normal driving, the left and right turn signals change with speed; the faster the speed, the faster they flash and a warning sound is emitted.

[0055] Other optional functions for users include turning left or right once within 3 seconds to enter the driving flashing mode and emit a "tick" sound.

[0056] This technical solution achieves dynamic warnings for motorcycle steering, braking, and driving states through the collaborative operation of multiple modules. The power module utilizes diode D1 for reverse connection protection and a 78L05 chip to regulate +12V to +5V. After capacitor filtering, it supplies power to control chip U1, logic chip U2, etc., ensuring stable circuit operation. The signal processing module converts the mechanical signals from turn signal switch K1 and brake switch K2 into electrical signals through a circuit composed of resistors, capacitors, and transistors, which are then input to the control module. The control module, centered on the 14-pin control chip U1, receives signals, performs internal logic operations, and outputs commands to each module: driving the corresponding turn signal to flash during steering, driving the left and right lights to flash synchronously during braking, and triggering the frequency adaptive module during driving. The module processes vehicle speed-related signals through the CD4011B logic chip, generating a frequency control signal positively correlated with vehicle speed, causing the turn signal flashing frequency to increase with vehicle speed. The relay module uses transistor Q11 to drive a high-power relay, which strikes the housing and emits a "tick" sound when activated, replacing the buzzer to enhance the audible warning. The turn signal output module controls the left and right light outputs through MOSFETs Q5 and Q6, combined with a Zener diode protection circuit, to accurately implement the flashing logic in different modes. In addition, it also supports a user-selectable strobe mode that activates a single turn signal within 3 seconds, comprehensively improving the warning effect to following vehicles and reducing driving safety hazards.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A turn signal flasher relay circuit for motorcycles, characterized in that, It includes: power supply module, signal processing module, control module, frequency adaptive module, relay module, and turn signal output module; The power supply module is connected to the signal processing module, the turn signal output module, the control module, and the frequency adaptive module, respectively. The control module is connected to the signal processing module, the frequency adaptive module, the relay module, and the turn signal output module, respectively.

2. The motorcycle turn signal flasher relay circuit according to claim 1, characterized in that, The power module includes: diode D1, power chip U3, capacitor C7, capacitor C6, and capacitor C5; The +12V input power supply is connected to the anode of diode D1 and one end of capacitor C7. The cathode of diode D1 is connected to one end of capacitor C6 and the VIN pin of power chip U3. The VOUT pin of power chip U3 is connected to one end of capacitor C5. The other end of capacitor C7 is connected to the other end of capacitor C6, the GND pin of power chip U3, the other end of capacitor C5, and ground.

3. A motorcycle turn signal flasher relay circuit according to claim 2, characterized in that, The main control module includes: control chip U1, resistor R6, resistor R3, capacitor C1, and capacitor C2; The VOUT pin of the power chip U3 is connected to one end of resistor R6, one end of resistor R3, the first pin of the control chip U1, and one end of capacitor C1. One end of capacitor C1 is connected to the fourteenth pin of the control chip U1, one end of capacitor C2, and ground. The other end of resistor R6 is connected to the third pin of the control chip U1, the other end of resistor R3 is connected to the second pin of the control chip U1, and the other end of capacitor C2 is connected to the thirteenth pin of the control chip U1.

4. A motorcycle turn signal flasher relay circuit according to claim 3, characterized in that, The signal processing module includes: resistor R5, resistor R20, capacitor C4, transistor Q2, resistor R2, resistor R4, resistor R21, capacitor C3, transistor Q1, resistor R1, resistor R23, resistor R24, transistor Q10, and resistor R26. One end of resistor R5 is connected to one end of resistor R20, one end of capacitor C4, and the base of transistor Q2. The other end of resistor R20 is connected to the other end of capacitor C4, the emitter of transistor Q2, and ground. The collector of transistor Q2 is connected to one end of resistor R2 and the eleventh pin of control chip U1. The other end of resistor R2 is connected to the VOUT pin of power chip U3. One end of resistor R4 is connected to one end of resistor R21, one end of capacitor C3, and the base of transistor Q1. The other end of resistor R21 is connected to the other end of capacitor C3, the emitter of transistor Q1, and ground. The collector of transistor Q1 is connected to one end of resistor R1 and the twelfth pin of control chip U1. The other end of resistor R1 is connected to the VOUT pin of power chip U3. One end of resistor R23 is connected to one end of resistor R24 ​​and the base of transistor Q10. The other end of resistor R24 ​​is connected to the emitter of transistor Q2 and ground. The collector of transistor Q2 is connected to one end of resistor R26 and the seventh pin of control chip U1. The other end of resistor R26 is connected to the VOUT pin of power chip U3.

5. A motorcycle turn signal flasher relay circuit according to claim 3, characterized in that, The turn signal output module includes: MOSFET Q5, Zener diode Z1, resistor R14, resistor R12, transistor Q7, resistor R16, resistor R19, resistor R17, resistor R18, transistor Q8, resistor R13, resistor R15, Zener diode Z2, MOSFET Q6, resistor R11, resistor R10, transistor Q3, resistor R9, diode D2, resistor R8, capacitor C8, transistor Q4, and resistor R7; The gate of MOSFET Q5 is connected to the anode of Zener diode Z1 and one end of resistor R14. The other end of resistor R14 is connected to one end of resistor R12 and the collector of transistor Q7. The base of transistor Q7 is connected to one end of resistor R16 and one end of resistor R19. The emitter of transistor Q7 is connected to the other end of resistor R19, one end of resistor R18, the emitter of transistor Q8, and ground. The base of transistor Q8 is connected to one end of resistor R18 and one end of resistor R17. The collector of transistor Q8 is connected to one end of resistor R15 and one end of resistor R13. The other end of resistor R15 is connected to the anode of Zener diode Z2 and the gate of MOSFET Q6. The drain of MOSFET Q5 is connected to the cathode of Zener diode Z1, the other end of resistor R12, and the other end of resistor R13. One end of the resistor is connected to the cathode of Zener diode Z2, one end of resistor R11, the drain of MOSFET Q6, and one end of resistor R10. The other end of resistor R10 is connected to the collector of transistor Q3 and the VOUT pin of power chip U3. The other end of resistor R11 is connected to the base of transistor Q3. The emitter of transistor Q3 is connected to one end of resistor R9. The other end of resistor R9 is connected to the anode of diode D2. The cathode of diode D2 is connected to one end of resistor R8 and one end of capacitor C8. The other end of resistor R8 is connected to the base of transistor Q4. The other end of capacitor C8 is connected to the emitter of transistor Q4 and ground. The collector of transistor Q4 is connected to one end of resistor R7. The collector of transistor Q4 is also connected to the common terminal of capacitor C2 and the thirteenth pin of control chip U1.

6. A motorcycle turn signal flasher relay circuit according to claim 3, characterized in that, The frequency adaptive module includes: capacitor C30, resistor R35, resistor R33, resistor R34, resistor R38, transistor Q20, logic chip U2, capacitor C31, capacitor C32, capacitor C34, resistor R37, resistor R36, and capacitor C33. One end of capacitor C30 is connected to one end of resistor R33 and one end of resistor R35. The other end of resistor R33 is connected to the base of transistor Q20. The other end of resistor R35 is connected to the VOUT pin of power chip U3, one end of resistor R34, and one end of resistor R38. The other end of resistor R34 is connected to the fifth pin of logic chip U2 and the collector of transistor Q20. The emitter of transistor Q20 is connected to ground. The other end of resistor R38 is connected to the second pin of logic chip U2 and one end of capacitor C34. The first pin of logic chip U2 is connected to the fourth, eighth, and ninth pins of logic chip U2. The third pin of logic chip U2 is connected to the logic... Pin 12 of chip U2 is connected to pin 13 of logic chip U2. Pin 7 of logic chip U2 is connected to ground. Pin 10 of logic chip U2 is connected to one end of capacitor C31. The other end of capacitor C31 is connected to pin 6 of logic chip U2 and one end of resistor R36. The other end of resistor R36 is connected to the VOUT pin of power chip U3. Pin 11 of logic chip U2 is connected to the other end of capacitor C14 and one end of resistor R37. The other end of resistor R37 is connected to one end of capacitor C33 and pin 9 of control chip U1. The other end of capacitor C33 is connected to ground. Pin 14 of logic chip U2 is connected to one end of capacitor C32. The other end of capacitor C32 is connected to ground.

7. A motorcycle turn signal flasher relay circuit according to claim 3, characterized in that, The relay module includes: resistor R25, resistor R26, transistor Q11, diode D4, and relay; The eighth pin of the control chip U1 is connected to one end of resistor R25. The other end of resistor R25 is connected to the base of transistor Q11 and one end of resistor R26. The other end of resistor R26 is connected to the emitter of transistor Q11 and ground. The collector of transistor Q11 is connected to one end of the relay. The other end of the relay is connected to the +12V power supply. Diode D4 is connected in parallel across the relay.

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