A weak magnetic rectification voltage regulating device

Abstract

The present invention provides a weak magnetic field rectifier and voltage regulator device, comprising: a position sensor for sensing a rotor position signal from a motorcycle magneto; a rotor magnetic field detection circuit connected to the position sensor for receiving the rotor position signal; a current acquisition circuit connected to the motorcycle power supply for acquiring the current signal from the motorcycle power supply; a voltage acquisition circuit connected to the motorcycle power supply for acquiring the voltage signal from the motorcycle power supply; a single-chip microcomputer for receiving the position signal, voltage signal, and current signal; a drive circuit connected to the single-chip microcomputer for issuing a drive signal based on the position signal, voltage signal, and current signal; a rectifier tube, the input end of the rectifier tube being connected to the drive circuit for receiving the drive signal, and the output end of the rectifier tube being connected to the motorcycle magneto and driven on or off according to the drive signal. The present invention can meet the power needs of the vehicle while reducing technical costs.

Description

Technical Field

[0001] The invention belongs to the technical field of three-phase AC magnetic motor rectification and voltage regulation, and in particular relates to a weak magnetic rectification and voltage regulation device. Background Art

[0002] With the development of society and the economy, people demand both economic growth and environmental protection. Consequently, national emission standards for motorcycles have become increasingly stringent, evolving from National II to National III, with the even stricter National IV standard on the horizon. Furthermore, consumers are demanding higher fuel economy and improved power handling, leading to the replacement of outdated carburetor technology with advanced electronic fuel injection. With the penetration of modern internet technology, consumers are increasingly demanding motorcycle entertainment features (such as onboard audio systems and USB power output) and intelligent features (such as driving records and vehicle networking).

[0003] The high-pressure fuel pump, fuel nozzle, ECU, throttle valve, oxygen sensor, pressure sensor, etc. in the electronic fuel injection system make the power of the electrical system of the electronic fuel injection vehicle much greater than that of the carburetor vehicle; at the same time, the addition of vehicle entertainment and vehicle intelligent equipment makes the output power of the single-phase magneto and single-phase rectifier and voltage regulator on the carburetor vehicle difficult to meet the needs of the vehicle's electrical system. In order to ensure the normal operation of the vehicle system, many motorcycle manufacturers have begun to use higher-power three-phase AC magneto and three-phase rectifier and voltage regulator technology.

[0004] Two common techniques are used in three-phase rectifier and voltage regulator technology: 1. Three-phase short-circuit rectification and voltage regulation (short-circuit type). This method uses power thyristors to short-circuit the three-phase coils of the magneto, allowing the thyristors and coils to dissipate excess power, ensuring stable output voltage. Adjusting the thyristor conduction angle controls the short-circuit current in the coils, balancing power fluctuations in the external circuit and stabilizing the output voltage. This method is applicable only to low-power (≤150W) vehicle systems. Its advantages are simple circuit structure and low cost. Its disadvantages are high heat generation from the thyristors and coils, which degrades vehicle fuel efficiency. The switching type uses rectified three-phase magneto voltage, which is then fed to power switching transistors (MOS) for chopper stabilization. External power consumption is balanced by adjusting the duty cycle of the switching transistors. 2. Three-phase switching with rectifier voltage regulation (switch-type). Its advantage is that the voltage regulation process losses are much lower than the short-circuit type, resulting in excellent fuel economy. However, its disadvantage is that when the switch is off, the magneto coil has no current, and the magneto's electromotive force is very high, requiring the rectifier and switch to have very high voltage resistance. Similarly, the switch-type is suitable for medium-power systems (150W to 300W) with relatively low magneto electromotive force. However, high-power systems (≥300W) with high magneto electromotive force require ultra-high-voltage switches and rectifiers, which significantly increase costs and are difficult for the market to accept.

[0005] Obviously, high-power vehicle systems and motorcycles with intelligent and other high-power consuming devices place higher demands on rectifiers and voltage regulators. They must ensure excellent fuel economy while also offering market-acceptable cost-performance. Summary of the Invention

[0006] In order to overcome the above technical defects, the present invention provides a weak magnetic rectifier voltage regulating device, which can reduce technical costs while meeting the power demand of vehicles.

[0007] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0008] A weak magnetic rectification and voltage regulation device, comprising:

[0009] A position sensor is provided on the motorcycle magneto and is used to sense a rotor position signal of the motorcycle magneto;

[0010] a rotor magnetic field detection circuit, connected to the position sensor and configured to receive the rotor position signal;

[0011] a current acquisition circuit connected to the motorcycle power supply and used to acquire a current signal of the motorcycle power supply;

[0012] a voltage acquisition circuit connected to the motorcycle power supply and used to acquire a voltage signal of the motorcycle power supply;

[0013] a single-chip microcomputer, the single-chip microcomputer being connected to the rotor magnetic field detection circuit for receiving the position signal, the single-chip microcomputer being connected to the voltage acquisition circuit for receiving the voltage signal, and the single-chip microcomputer being connected to the current acquisition circuit for receiving the current signal;

[0014] a driving circuit, connected to the single chip microcomputer, and configured to issue a driving signal according to the position signal, the voltage signal, and the current signal;

[0015] A rectifier tube, wherein the input end of the rectifier tube is connected to the drive circuit for receiving the drive signal, and the output end of the rectifier tube is connected to the motorcycle magneto and is driven to be turned on or off according to the drive signal.

[0016] Compared with the prior art, the present invention has the following advantages: a motorcycle magneto employs a three-phase AC magneto. By acquiring the real-time power of the motorcycle load and controlling the rectifier tube, the method changes the magnetic field strength within the AC magneto, thereby controlling the active power generated by the motorcycle magneto. This broadens the applicable speed range of the motorcycle magneto, reduces the technical requirements of the system for the motorcycle magneto, and reduces system costs. The present invention ensures stable system voltage output when the power of the motorcycle's electrical appliances fluctuates, while also reducing the system's wasted power loss and improving the vehicle's fuel economy. Furthermore, the magneto maintains constant active power output even when the speed varies dramatically over a wide range, reducing engine drag. This improves the vehicle's fuel economy under various operating conditions and meets the power requirements of the vehicle's electrical system under various loads. When the active power generated by the three-phase AC magneto is excessive, the internal magnetic strength of the three-phase AC magneto is reduced, thereby reducing the power generated by the three-phase AC magneto. When the active power generated by the three-phase AC magneto is insufficient, the internal magnetic strength of the three-phase AC magneto is increased, thereby increasing the power generated by the three-phase AC magneto.

[0017] As a further improvement of the present invention, the driving circuit includes:

[0018] Three single-phase drive circuits are connected to the single-chip microcomputer and are used to drive the rectifier tube to be turned on or off, so as to turn on or off the motorcycle magneto and the rectifier tube.

[0019] As a further improvement of the present invention, the rectifier tube includes: an A-phase rectifier upper tube, an A-phase rectifier lower tube, a B-phase rectifier upper tube, a B-phase rectifier lower tube, a C-phase rectifier upper tube, and a C-phase rectifier lower tube;

[0020] The gate of the A-phase rectifier upper tube is connected to the A-phase drive circuit, the drain of the A-phase rectifier upper tube is connected to the positive electrode of the motorcycle power supply, the source of the A-phase rectifier upper tube is connected to the drain of the A-phase rectifier lower tube, and the source of the A-phase rectifier upper tube is connected to the U phase of the motorcycle magnetic motor;

[0021] The gate of the A-phase rectifier lower tube is connected to the A-phase drive circuit, and the source of the A-phase rectifier lower tube is connected to the current collection circuit;

[0022] The gate of the B-phase rectifier upper tube is connected to the B-phase drive circuit, the drain of the B-phase rectifier upper tube is connected to the positive electrode of the motorcycle power supply, the source of the B-phase rectifier upper tube is connected to the drain of the B-phase rectifier lower tube, and the source of the B-phase rectifier upper tube is connected to the V phase of the motorcycle magnetic motor;

[0023] The gate of the B-phase rectifier lower tube is connected to the B-phase drive circuit, and the source of the B-phase rectifier lower tube is connected to the current collection circuit;

[0024] The gate of the C-phase rectifier upper tube is connected to the C-phase drive circuit, the drain of the C-phase rectifier upper tube is connected to the positive electrode of the motorcycle power supply, the source of the C-phase rectifier upper tube is connected to the drain of the C-phase rectifier lower tube, and the source of the C-phase rectifier upper tube is connected to the W phase of the motorcycle magnetic motor;

[0025] The gate of the C-phase rectifier lower tube is connected to the C-phase driving circuit, and the source of the C-phase rectifier lower tube is connected to the current collection circuit.

[0026] By setting three groups of rectifier tubes A, B and C, the active power of the generator is reduced and the power adjustment range of the high-power three-phase magnetic motor is widened.

[0027] As a further improvement of the present invention, the present invention further comprises:

[0028] A voltage stabilizing circuit is connected to the A-phase driving circuit, the B-phase driving circuit, and the C-phase driving circuit, and is used to provide a first power supply for the A-phase driving circuit, the B-phase driving circuit, and the C-phase driving circuit.

[0029] As a further improvement of the present invention, the single-phase drive circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first driver chip, a first diode, a second diode, a third diode, and a first capacitor;

[0030] The first pin of the first driver chip is connected to the first power supply, the first pin of the first driver chip is connected to the fifth pin of the first driver chip through the first forward-conducting diode, the second pin of the first driver chip is connected to the ninth pin of the single-chip microcomputer through the seventh resistor, the second pin of the first driver chip is grounded through the sixth resistor, the third pin of the first driver chip is connected to the tenth pin of the single-chip microcomputer through the eighth resistor, the third pin of the first driver chip is grounded through the fifth resistor, the fourth pin of the first driver chip is grounded, the fifth pin of the first driver chip is connected to the seventh pin of the first driver chip through the first capacitor, and the first driver chip is grounded. The sixth pin of the chip is connected to the gate of the A-phase rectifier upper tube through the reverse-conducting second diode, the sixth pin of the first driver chip is connected to the gate of the A-phase rectifier upper tube through the first resistor, the seventh pin of the first driver chip is connected to the gate of the A-phase rectifier upper tube through the second resistor, the seventh pin of the first driver chip is connected to the source of the A-phase rectifier upper tube, the eighth pin of the first driver chip is connected to the gate of the A-phase rectifier lower tube through the reverse-conducting third diode, the eighth pin of the first driver chip is connected to the gate of the A-phase rectifier lower tube through the third resistor, and the gate of the A-phase rectifier lower tube is connected to the source of the A-phase rectifier lower tube through the fourth resistor;

[0031] As a further improvement of the present invention, the current acquisition circuit includes: a twenty-fifth resistor and a twenty-sixth resistor;

[0032] The fifteenth pin of the single-chip microcomputer is grounded through the twenty-sixth resistor and the twenty-fifth resistor, and the fifteenth pin of the single-chip microcomputer is connected to the source of the A-phase rectifier lower tube, the source of the B-phase rectifier lower tube, and the source of the C-phase rectifier lower tube through the twenty-sixth resistor.

[0033] As a further improvement of the present invention, the voltage acquisition circuit includes: a sixth capacitor, a seventh capacitor, a twenty-seventh resistor, and a twenty-eighth resistor;

[0034] The second pin of the single-chip microcomputer is connected to the positive electrode of the motorcycle power supply through the twenty-eighth resistor, the second pin of the single-chip microcomputer is connected to the negative electrode of the motorcycle power supply through the twenty-eighth resistor and the sixth capacitor, the second pin of the single-chip microcomputer is connected to the negative electrode of the motorcycle power supply through the twenty-seventh resistor, and the twenty-seventh resistor is connected in parallel with the seventh capacitor.

[0035] As a further improvement of the present invention, the rotor magnetic field detection circuit includes: a thirty-second resistor, a thirty-third resistor, and a thirty-fourth resistor;

[0036] The first pin of the single-chip microcomputer, the sixth pin of the single-chip microcomputer, the seventh pin of the single-chip microcomputer, and the eighth pin of the single-chip microcomputer are connected to the position sensor, the first pin of the single-chip microcomputer is connected to the sixth pin of the single-chip microcomputer through the thirty-second resistor, the first pin of the single-chip microcomputer is connected to the seventh pin of the single-chip microcomputer through the thirty-third resistor, the first pin of the single-chip microcomputer is connected to the eighth pin of the single-chip microcomputer through the thirty-fourth resistor, and the eighth pin of the single-chip microcomputer is connected to the position sensor.

[0037] As a further improvement of the present invention, the voltage stabilizing circuit includes: a voltage stabilizing chip, a voltage stabilizer, an inductor, a fourth capacitor, a fifth capacitor, a tenth diode, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, and a thirty-first resistor;

[0038] The first pin of the voltage stabilizing chip is connected to the positive electrode of the motorcycle power supply, the first pin of the voltage stabilizing chip is connected to the second pin of the voltage stabilizing chip through the twenty-eighth resistor, the first pin of the voltage stabilizing chip is connected to the fifth pin of the voltage stabilizing chip through the forward-conducting tenth diode and the inductor, the third pin of the voltage stabilizing chip is grounded through the twenty-ninth resistor, the third pin of the voltage stabilizing chip is connected to the fourth pin of the voltage stabilizing chip, the fifth pin of the voltage stabilizing chip is connected to the sixth pin of the voltage stabilizing chip through the thirtieth resistor, the fifth pin of the voltage stabilizing chip is grounded through the thirtieth resistor and the thirty-first resistor, and the The fifth pin is grounded through the fourth capacitor, the fifth pin of the voltage regulator chip is connected to the first pin of the voltage regulator, the fifth pin of the voltage regulator chip is connected to the second pin of the voltage regulator through the fourth capacitor, the fifth pin of the voltage regulator chip is connected to the third pin of the voltage regulator through the fourth capacitor and the fifth capacitor, the seventh pin of the voltage regulator chip is grounded through the thirty-first resistor, the seventh pin of the voltage regulator chip is grounded, the eighth pin of the voltage regulator chip is grounded, the third pin of the voltage regulator is grounded through the fifth capacitor, and the first pin of the voltage regulator is connected to the A-phase drive circuit, the B-phase drive circuit, and the C-phase drive circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0040] Figure 1 It is a system framework diagram of the present invention;

[0041] Figure 2 1 is a circuit diagram of the present invention.

[0042] Markings: 1-position sensor; 2-rotor magnetic field detection circuit; 3-current acquisition circuit; 4-voltage acquisition circuit; U1-single-chip microcomputer; 5-drive circuit; 6-rectifier tube; 7-voltage stabilization circuit;

[0043] 100-Motorcycle magneto; 200-Motorcycle power supply. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] The present invention discloses a weak magnetic rectifier voltage regulating device, which is characterized by comprising: a position sensor 1, a rotor magnetic field detection circuit 2, a current acquisition circuit 3, a voltage acquisition circuit 4, a single chip microcomputer U1, a drive circuit 5, and a rectifier tube 6, wherein the position sensor 1 is arranged on a motorcycle magnetic motor 100 and is used to sense the rotor position signal of the motorcycle magnetic motor 100; the rotor magnetic field detection circuit 2 is connected to the position sensor 1 and is used to receive the rotor position signal; the current acquisition circuit 3 is connected to a motorcycle power supply 200 and is used to acquire the current signal of the motorcycle power supply 200; the voltage acquisition circuit 4 is connected to the motorcycle power supply 200 and is used to acquire the current signal of the motorcycle power supply 200; 00 is connected to collect the voltage signal of the motorcycle power supply 200; the single-chip computer U1 is connected to the rotor magnetic field detection circuit 2 to receive the position signal, the single-chip computer U1 is connected to the voltage acquisition circuit 4 to receive the voltage signal, and the single-chip computer U1 is connected to the current acquisition circuit 3 to receive the current signal; the drive circuit 5 is connected to the single-chip computer U1 to send a drive signal according to the position signal, the voltage signal and the current signal; the input end of the rectifier tube 6 is connected to the drive circuit to receive the drive signal, and the output end of the rectifier tube 6 is connected to the motorcycle magnetic motor 100, and is driven to be turned on or off according to the drive signal.

[0046] The motorcycle magneto is an AC magneto. By collecting the real-time power of the motorcycle load and controlling the rectifier tube 7, the internal magnetic field strength of the AC magneto is changed to control the active power generation power of the AC magneto, thereby broadening the application speed range of the AC magneto, reducing the system's technical requirements for the AC magneto, and reducing system costs.

[0047] In this embodiment, the three drive circuits are: an A-phase drive circuit, a B-phase drive circuit, and a C-phase drive circuit. Among them, the A-phase drive circuit is connected to the single-chip microcomputer U1, and is used to drive the rectifier tube 6 to be turned on or off, so that the U-phase of the motorcycle magnetic motor 100 is turned on or off with the rectifier tube 6; the B-phase drive circuit is connected to the single-chip microcomputer U1, and is used to drive the rectifier tube 6 to be turned on or off, so that the V-phase of the motorcycle magnetic motor 100 is turned on or off with the rectifier tube 6; the C-phase drive circuit is connected to the single-chip microcomputer U1, and is used to drive the rectifier tube 6 to be turned on or off, so that the W-phase of the motorcycle magnetic motor 100 is turned on or off with the rectifier tube 6.

[0048] As a further improvement of the present invention, the rectifier tube includes: A-phase rectifier upper tube Q1, A-phase rectifier lower tube Q2, B-phase rectifier upper tube Q3, B-phase rectifier lower tube Q4, C-phase rectifier upper tube Q5, and C-phase rectifier lower tube Q6.

[0049] The gate of the A-phase rectifier upper tube Q1 is connected to the A-phase drive circuit, the drain of the A-phase rectifier upper tube Q1 is connected to the positive electrode of the motorcycle power supply 200, the source of the A-phase rectifier upper tube Q1 is connected to the drain of the A-phase rectifier lower tube Q2, and the source of the A-phase rectifier upper tube Q1 is connected to the U phase of the motorcycle magnetic motor 100; the gate of the A-phase rectifier lower tube is connected to the A-phase drive circuit, and the source of the A-phase rectifier lower tube is connected to the current collection circuit.

[0050] The gate of the B-phase rectifier upper tube Q3 is connected to the B-phase drive circuit, the drain of the B-phase rectifier upper tube Q3 is connected to the positive electrode of the motorcycle power supply 200, the source of the B-phase rectifier upper tube Q3 is connected to the drain of the B-phase rectifier lower tube, and the source of the B-phase rectifier upper tube Q3 is connected to the V phase of the motorcycle magnetic motor 100; the gate of the B-phase rectifier lower tube Q4 is connected to the B-phase drive circuit, and the source of the B-phase rectifier lower tube Q4 is connected to the current collection circuit.

[0051] The gate of the C-phase rectifier upper tube Q5 is connected to the C-phase drive circuit, the drain of the C-phase rectifier upper tube Q5 is connected to the positive electrode of the motorcycle power supply 200, the source of the C-phase rectifier upper tube Q5 is connected to the drain of the C-phase rectifier lower tube, and the source of the C-phase rectifier upper tube Q5 is connected to the W phase of the motorcycle magnetic motor 100; the gate of the C-phase rectifier lower tube Q6 is connected to the C-phase drive circuit, and the source of the C-phase rectifier lower tube Q6 is connected to the current collection circuit.

[0052] By providing three sets of rectifier tubes, A, B, and C, the active power of the generator is reduced, widening the power adjustment range of the high-power three-phase magneto. Furthermore, the upper and lower rectifier tubes for phases A, B, and C are configured with a conduction dead zone to prevent simultaneous conduction and short circuits. This conduction dead zone is the sum of the software dead zone of the rectifier and voltage regulator control unit and the inherent dead zone of the A, B, and C drive units.

[0053] Furthermore, the present invention also includes: a voltage stabilizing circuit 7, which is connected to the A-phase driving circuit, the B-phase driving circuit, and the C-phase driving circuit, and is used to provide a +12V first power supply VCC1 for the A-phase driving circuit, the B-phase driving circuit, and the C-phase driving circuit.

[0054] Specifically, the A-phase drive circuit includes: a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first driver chip U2, a first diode D1, a second diode D2, a third diode D3, and a first capacitor C1; a first pin of the first driver chip U2 is connected to the first power supply VCC1, a first pin of the first driver chip U2 is connected to the fifth pin of the first driver chip U2 through the forward-conducting first diode D1, a second pin of the first driver chip U2 is connected to the ninth pin of the single-chip microcomputer U1 through the seventh resistor R7, a second pin of the first driver chip U2 is grounded through the sixth resistor R6, a third pin of the first driver chip U2 is connected to the tenth pin of the single-chip microcomputer U1 through the eighth resistor R8, a third pin of the first driver chip U2 is grounded through the fifth resistor R5, and the first driver chip The fourth pin of U2 is grounded, the fifth pin of the first driver chip U2 is connected to the seventh pin of the first driver chip U2 through the first capacitor C1, the sixth pin of the first driver chip U2 is connected to the gate of the A-phase rectifier upper tube Q1 through the reverse-conducting second diode D2, the sixth pin of the first driver chip U2 is connected to the gate of the A-phase rectifier upper tube Q1 through the first resistor R1, the seventh pin of the first driver chip U2 is connected to the gate of the A-phase rectifier upper tube Q1 through the second resistor R2, the seventh pin of the first driver chip U1 is connected to the source of the A-phase rectifier upper tube Q1, the eighth pin of the first driver chip U2 is connected to the gate of the A-phase rectifier lower tube Q2 through the reverse-conducting third diode D3, the eighth pin of the first driver chip U2 is connected to the gate of the A-phase rectifier lower tube Q2 through the third resistor R3, and the gate of the A-phase rectifier lower tube Q2 is connected to the source of the A-phase rectifier lower tube Q2 through the fourth resistor R4.

[0055] The B-phase driving circuit includes: a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a second driving chip U3, a fourth diode D4, a fifth diode D5, a sixth diode D6, and a second capacitor C2; a first pin of the second driving chip U3 is connected to the first power supply VCC1, a first pin of the second driving chip U3 is connected to the fifth pin of the second driving chip U3 via the forward-conducting fourth diode D4, a second pin of the second driving chip U3 is connected to the eleventh pin of the single-chip microcomputer U1 via the fifteenth resistor R15, a second pin of the second driving chip U3 is grounded via the fourteenth resistor R14, a third pin of the second driving chip U3 is connected to the twelfth pin of the single-chip microcomputer U1 via the sixteenth resistor R16, and a third pin of the second driving chip U3 is grounded via the thirteenth resistor R13 The fourth pin of the second driver chip U3 is grounded, the fifth pin of the second driver chip U3 is connected to the seventh pin of the second driver chip U3 through the second capacitor C2, the sixth pin of the second driver chip U3 is connected to the gate of the B-phase rectifier upper tube Q3 through the reverse-conducting fifth diode D5, the sixth pin of the second driver chip U3 is connected to the gate of the B-phase rectifier upper tube Q3 through the ninth resistor R9, the seventh pin of the second driver chip U3 is connected to the gate of the B-phase rectifier upper tube Q3 through the tenth resistor R10, the seventh pin of the second driver chip U3 is connected to the source of the B-phase rectifier upper tube Q3, the eighth pin of the second driver chip U3 is connected to the gate of the B-phase rectifier lower tube Q4 through the reverse-conducting sixth diode D6, the eighth pin of the second driver chip U3 is connected to the gate of the B-phase rectifier lower tube Q4 through the eleventh resistor R11, and the gate of the B-phase rectifier lower tube Q4 is connected to the source of the B-phase rectifier lower tube Q4 through the twelfth resistor R12.

[0056] The C-phase driving circuit includes: a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a third driving chip U4, a seventh diode D7, an eighth diode D8, a ninth diode D9, and a third capacitor C3; a first pin of the third driving chip U4 is connected to the first power supply VCC1, a first pin of the third driving chip U4 is connected to the fifth pin of the third driving chip U4 via the forward-conducting seventh diode D7, a second pin of the third driving chip U4 is connected to the thirteenth pin of the single-chip microcomputer U1 via the twenty-third resistor R23, a second pin of the third driving chip U4 is grounded via the twenty-second resistor R22, a third pin of the third driving chip U4 is connected to the fourteenth pin of the single-chip microcomputer U1 via the twenty-fourth resistor R24, and a third pin of the third driving chip U4 is connected to the twenty-first resistor R21 is grounded, the fourth pin of the third driver chip U4 is grounded, the fifth pin of the third driver chip U4 is connected to the seventh pin of the third driver chip U4 through the third capacitor C3, the sixth pin of the third driver chip U4 is connected to the gate of the C-phase rectifier upper tube Q5 through the reverse-conducting eighth diode D8, the sixth pin of the third driver chip U4 is connected to the gate of the C-phase rectifier upper tube Q5 through the seventeenth resistor R17, the seventh pin of the third driver chip U4 is connected to the gate of the C-phase rectifier upper tube Q5 through the eighteenth resistor R18, the seventh pin of the third driver chip U4 is connected to the source of the C-phase rectifier upper tube Q5, the eighth pin of the third driver chip U4 is connected to the gate of the C-phase rectifier lower tube Q6 through the reverse-conducting ninth diode D9, the eighth pin of the third driver chip U4 is connected to the gate of the C-phase rectifier lower tube Q6 through the nineteenth resistor R19, and the gate of the C-phase rectifier lower tube Q6 is connected to the source of the C-phase rectifier lower tube through the twentieth resistor R20.

[0057] Preferably, the current acquisition circuit 3 includes: a twenty-fifth resistor R25 and a twenty-sixth resistor R26; the fifteenth pin of the microcontroller U1 is grounded through the twenty-sixth resistor R26 and the twenty-fifth resistor R25, and the fifteenth pin of the microcontroller U1 is connected to the source of the A-phase rectifier lower tube Q2, the source of the B-phase rectifier lower tube Q4, and the source of the C-phase rectifier lower tube Q6 through the twenty-sixth resistor R25.

[0058] As a further improvement of the present invention, the voltage acquisition circuit 4 includes: a sixth capacitor C6, a seventh capacitor C7, a twenty-seventh resistor R27, and a twenty-eighth resistor R28; the second pin of the microcontroller U1 is connected to the positive electrode of the motorcycle power supply 200 through the twenty-eighth resistor R28, the second pin of the microcontroller U1 is connected to the negative electrode of the motorcycle power supply 200 through the twenty-eighth resistor R28 and the sixth capacitor C6, the second pin of the microcontroller U1 is connected to the negative electrode of the motorcycle power supply through the twenty-seventh resistor R27, and the twenty-seventh resistor R27 is connected in parallel with the seventh capacitor C7.

[0059] Preferably, the rotor magnetic field detection circuit 2 includes: a thirty-second resistor R32, a thirty-third resistor R33, and a thirty-fourth resistor R34; the first pin of the microcontroller U1, the sixth pin of the microcontroller U1, the seventh pin of the microcontroller U1, and the eighth pin of the microcontroller U1 are connected to the position sensor 1, the first pin of the microcontroller U1 is connected to the sixth pin of the microcontroller U1 through the thirty-second resistor R32, the first pin of the microcontroller U1 is connected to the seventh pin of the microcontroller U1 through the thirty-third resistor R33, the first pin of the microcontroller U1 is connected to the eighth pin of the microcontroller U1 through the thirty-fourth resistor R34, and the eighth pin of the microcontroller U1 is connected to the position sensor 1.

[0060] Preferably, the voltage stabilizing circuit 7 includes: a voltage stabilizing chip U5, a voltage stabilizer U6, an inductor L1, a fourth capacitor C4, a fifth capacitor C5, a tenth diode D12, a twenty-eighth resistor R28, a twenty-ninth resistor R29, a thirtieth resistor R30, and a thirty-first resistor RR31; the first pin of the voltage stabilizing chip U5 is connected to the positive electrode of the motorcycle power supply 200, the first pin of the voltage stabilizing chip U5 is connected to the second pin of the voltage stabilizing chip U5 through the twenty-eighth resistor R28, the first pin of the voltage stabilizing chip U5 is connected to the fifth pin of the voltage stabilizing chip U5 through the forward-conducting tenth diode D12 and the inductor L1, the third pin of the voltage stabilizing chip U5 is grounded through the twenty-ninth resistor R29, the third pin of the voltage stabilizing chip U5 is connected to the fourth pin of the voltage stabilizing chip U5, the fifth pin of the voltage stabilizing chip U5 is connected to the sixth pin of the voltage stabilizing chip U5 through the thirtieth resistor R30, and the stabilizer The fifth pin of the voltage regulator chip U5 is grounded via the 30th resistor R30 and the 31st resistor R31. The fifth pin of the voltage regulator chip U5 is grounded via the fourth capacitor C4. The fifth pin of the voltage regulator chip U5 is connected to the first pin of the voltage regulator U6. The fifth pin of the voltage regulator chip U6 is connected to the second pin of the voltage regulator U6 via the fourth capacitor C4. The fifth pin of the voltage regulator chip U5 is connected to the third pin of the voltage regulator U6 via the fourth capacitor C4 and the fifth capacitor C5. The seventh pin of the voltage regulator chip U5 is grounded via the 31st resistor R31. The seventh pin of the voltage regulator chip U5 is grounded. The eighth pin of the voltage regulator chip U5 is grounded. The third pin of the voltage regulator U5 is grounded via the fifth capacitor C5. The first pin of the voltage regulator U6 is connected to the A-phase drive circuit, the B-phase drive circuit, and the C-phase drive circuit. The third pin of the voltage regulator U5 provides a +5V second power supply VCC2 for the microcontroller. This ensures that the output first power supply is stable at 12V when the voltage is higher or lower than 12V.

[0061] The working principle of the present invention is further explained below in conjunction with the specific implementation process.

[0062] When motorcycle power supply 200 is in operation, microcontroller U1 receives its current and voltage signals and calculates its power. If power is too high or too low, rectifier 6 is driven to conduct or phase-adjust the direct-axis current in the motorcycle magneto coil, thereby adjusting the active power. The AC voltage output by motorcycle magneto 100 is converted to DC voltage by rectifier 7, which is turned on and off. The rectifier's on and off timing is calculated based on the rotor position signal, changing the phase difference of the AC voltage output by motorcycle magneto 100. This adjusts the internal magnetic strength of motorcycle magneto 100 and changes the active power generated by the motor, thereby stabilizing the output voltage.

[0063] Microcontroller U1 adjusts the direct-axis current in the coils of the motorcycle magneto 100 by switching on the upper and lower rectifiers of phases A, B, and C, thereby adjusting the active power generated by the motor. When the active power generated by the motor 100 is too high, the internal magnetic strength of the motor 100 is reduced, thereby reducing the power generated by the motor. When the active power generated by the motor 100 is insufficient, the internal magnetic strength of the motor 100 is increased, thereby increasing the power generated by the motor 100.

[0064] The voltage collected by the current collection circuit 3 exceeds the maximum value of the motorcycle magneto 100, indicating an overcurrent or short circuit in the system. The single chip microcomputer U1 reduces the active power generation of the AC magneto 100 to implement overcurrent or short circuit protection for the system.

[0065] If the output voltage detected by voltage acquisition circuit 4 is lower than the set voltage of the external system, microcontroller U1 reduces the direct-axis current in the coils of AC magnetic motor 100 to increase active power generation and boost the output voltage of the voltage regulator. Furthermore, rotor magnetic field detection circuit 2 detects the rotor position, and microcontroller U1 controls the switching timing of the six rectifiers in phases A, B, and C based on the rotor's position.

[0066] In addition, when the motorcycle magneto 100 is rotating at a high speed, and the maximum power generation power of the motorcycle magneto 100 cannot meet the output load demand, the single chip computer U1 can timely adjust the conduction timing of the six rectifier tubes to increase the magnetic field inside the motorcycle magneto 100, thereby increasing the power generation power of the motorcycle magneto 100 to ensure normal power supply to the load.

[0067] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A weak magnetic rectifier voltage regulating device, characterized in that: include: A position sensor is provided on the motorcycle magneto and is used to sense a rotor position signal of the motorcycle magneto; a rotor magnetic field detection circuit, connected to the position sensor and configured to receive the rotor position signal; a current acquisition circuit connected to the motorcycle power supply and used to acquire a current signal of the motorcycle power supply; a voltage acquisition circuit connected to the motorcycle power supply and used to acquire a voltage signal of the motorcycle power supply; a single-chip microcomputer, the single-chip microcomputer being connected to the rotor magnetic field detection circuit for receiving the position signal, the single-chip microcomputer being connected to the voltage acquisition circuit for receiving the voltage signal, and the single-chip microcomputer being connected to the current acquisition circuit for receiving the current signal; a driving circuit, connected to the single chip microcomputer, and configured to issue a driving signal according to the position signal, the voltage signal, and the current signal; A rectifier tube, wherein the input end of the rectifier tube is connected to the drive circuit and is used to receive the drive signal, and the output end of the rectifier tube is connected to the motorcycle magneto and is driven to be turned on or off according to the drive signal; The driving circuit includes: Three single-phase drive circuits, the single-phase drive circuits being connected to the single-chip microcomputer and used to drive the rectifier tube to be turned on or off, so as to turn on or off the motorcycle magneto and the rectifier tube; The rectifier tubes include: an A-phase rectifier upper tube, an A-phase rectifier lower tube, a B-phase rectifier upper tube, a B-phase rectifier lower tube, a C-phase rectifier upper tube, and a C-phase rectifier lower tube; The gate of the A-phase rectifier upper tube is connected to the A-phase drive circuit, the drain of the A-phase rectifier upper tube is connected to the positive electrode of the motorcycle power supply, the source of the A-phase rectifier upper tube is connected to the drain of the A-phase rectifier lower tube, and the source of the A-phase rectifier upper tube is connected to the U phase of the motorcycle magnetic motor; The gate of the A-phase rectifier lower tube is connected to the A-phase drive circuit, and the source of the A-phase rectifier lower tube is connected to the current collection circuit; The gate of the B-phase rectifier upper tube is connected to the B-phase drive circuit, the drain of the B-phase rectifier upper tube is connected to the positive electrode of the motorcycle power supply, the source of the B-phase rectifier upper tube is connected to the drain of the B-phase rectifier lower tube, and the source of the B-phase rectifier upper tube is connected to the V phase of the motorcycle magnetic motor; The gate of the B-phase rectifier lower tube is connected to the B-phase drive circuit, and the source of the B-phase rectifier lower tube is connected to the current collection circuit; The gate of the C-phase rectifier upper tube is connected to the C-phase drive circuit, the drain of the C-phase rectifier upper tube is connected to the positive electrode of the motorcycle power supply, the source of the C-phase rectifier upper tube is connected to the drain of the C-phase rectifier lower tube, and the source of the C-phase rectifier upper tube is connected to the W phase of the motorcycle magnetic motor; The gate of the C-phase rectifier lower tube is connected to the C-phase drive circuit, and the source of the C-phase rectifier lower tube is connected to the current collection circuit; The voltage acquisition circuit includes: a sixth capacitor, a seventh capacitor, a twenty-seventh resistor, and a twenty-eighth resistor; The second pin of the single-chip microcomputer is connected to the positive electrode of the motorcycle power supply through the twenty-eighth resistor, the second pin of the single-chip microcomputer is connected to the negative electrode of the motorcycle power supply through the twenty-eighth resistor and the sixth capacitor, the second pin of the single-chip microcomputer is connected to the negative electrode of the motorcycle power supply through the twenty-seventh resistor, and the twenty-seventh resistor is connected in parallel with the seventh capacitor.

2. The weak magnetic rectifier voltage regulating device according to claim 1, characterized in that: Also includes: A voltage stabilizing circuit is connected to the A-phase driving circuit, the B-phase driving circuit, and the C-phase driving circuit, and is used to provide a first power supply for the A-phase driving circuit, the B-phase driving circuit, and the C-phase driving circuit.

3. The weak magnetic rectifier voltage regulating device according to claim 2, characterized in that: The single-phase drive circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first drive chip, a first diode, a second diode, a third diode, and a first capacitor; The first pin VCC of the first driver chip is connected to the first power supply, the first pin VCC of the first driver chip is connected to the fifth pin VB of the first driver chip through the first forward-conducting diode, the second pin HIN of the first driver chip is connected to the ninth pin of the single-chip microcomputer through the seventh resistor, the second pin HIN of the first driver chip is grounded through the sixth resistor, the third pin UN of the first driver chip is connected to the tenth pin of the single-chip microcomputer through the eighth resistor, the third pin UN of the first driver chip is grounded through the fifth resistor, the fourth pin GND of the first driver chip is grounded, the fifth pin VB of the first driver chip is connected to the seventh pin VS of the first driver chip through the first capacitor, and the first driver chip is grounded. The sixth pin H_OUT of the chip is connected to the gate of the A-phase rectifier upper tube through the reverse-conducting second diode, the sixth pin H_OUT of the first driver chip is connected to the gate of the A-phase rectifier upper tube through the first resistor, the seventh pin of the first driver chip is connected to the gate of the A-phase rectifier upper tube through the second resistor, the seventh pin VS of the first driver chip is connected to the source of the A-phase rectifier upper tube, the eighth pin L_OUT of the first driver chip is connected to the gate of the A-phase rectifier lower tube through the reverse-conducting third diode, the eighth pin L_OUT of the first driver chip is connected to the gate of the A-phase rectifier lower tube through the third resistor, and the gate of the A-phase rectifier lower tube is connected to the source of the A-phase rectifier lower tube through the fourth resistor.

4. The weak magnetic rectifier voltage regulating device according to claim 1, characterized in that: The current collection circuit includes: a twenty-fifth resistor and a twenty-sixth resistor; The fifteenth pin of the single-chip microcomputer is grounded through the twenty-sixth resistor and the twenty-fifth resistor, and the fifteenth pin of the single-chip microcomputer is connected to the source of the A-phase rectifier lower tube, the source of the B-phase rectifier lower tube, and the source of the C-phase rectifier lower tube through the twenty-sixth resistor.

5. The weak magnetic rectifier voltage regulating device according to claim 1, characterized in that: The rotor magnetic field detection circuit includes: a thirty-second resistor, a thirty-third resistor, and a thirty-fourth resistor; The first pin of the single-chip microcomputer, the sixth pin of the single-chip microcomputer, the seventh pin of the single-chip microcomputer, and the eighth pin of the single-chip microcomputer are connected to the position sensor, the first pin of the single-chip microcomputer is connected to the sixth pin of the single-chip microcomputer through the thirty-second resistor, the first pin of the single-chip microcomputer is connected to the seventh pin of the single-chip microcomputer through the thirty-third resistor, the first pin of the single-chip microcomputer is connected to the eighth pin of the single-chip microcomputer through the thirty-fourth resistor, and the eighth pin of the single-chip microcomputer is connected to the position sensor.

6. The weak magnetic rectifier voltage regulating device according to claim 2, characterized in that: The voltage stabilizing circuit includes: a voltage stabilizing chip, a voltage stabilizer, an inductor, a fourth capacitor, a fifth capacitor, a tenth diode, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, and a thirty-first resistor; The first pin of the voltage stabilizing chip is connected to the positive electrode of the motorcycle power supply, the first pin of the voltage stabilizing chip is connected to the second pin of the voltage stabilizing chip through the twenty-eighth resistor, the first pin of the voltage stabilizing chip is connected to the fifth pin of the voltage stabilizing chip through the forward-conducting tenth diode and the inductor, the third pin of the voltage stabilizing chip is grounded through the twenty-ninth resistor, the third pin of the voltage stabilizing chip is connected to the fourth pin of the voltage stabilizing chip, the fifth pin of the voltage stabilizing chip is connected to the sixth pin of the voltage stabilizing chip through the thirtieth resistor, the fifth pin of the voltage stabilizing chip is grounded through the thirtieth resistor and the thirty-first resistor, and the The fifth pin is grounded through the fourth capacitor, the fifth pin of the voltage regulator chip is connected to the first pin of the voltage regulator, the fifth pin of the voltage regulator chip is connected to the second pin of the voltage regulator through the fourth capacitor, the fifth pin of the voltage regulator chip is connected to the third pin of the voltage regulator through the fourth capacitor and the fifth capacitor, the seventh pin of the voltage regulator chip is grounded through the thirty-first resistor, the seventh pin of the voltage regulator chip is grounded, the eighth pin of the voltage regulator chip is grounded, the third pin of the voltage regulator is grounded through the fifth capacitor, and the first pin of the voltage regulator is connected to the A-phase drive circuit, the B-phase drive circuit, and the C-phase drive circuit.

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