A control circuit of a brushless motor intelligent cloth cutting machine

Abstract

The utility model provides a control circuit of a brushless motor intelligent cloth cutting machine, including an output end of a power supply connected to an input end of a power supply voltage adjustment circuit, an output end of the power supply voltage adjustment circuit connected to an MCU main control circuit, a Hall induction detection circuit, and an LED display indication circuit, an input end of the MCU main control circuit connected to an output end of a voltage signal acquisition circuit and an output end of a Hall induction detection circuit, an output end of the MCU main control circuit connected to an input end of a brushless motor drive circuit and an input end of an LED display indication circuit, an output end of the brushless motor drive circuit connected to a brushless motor drive of an intelligent cloth cutting machine, and an input end of a Hall induction detection circuit electrically connected to a brushless motor of an intelligent cloth cutting machine. The utility model has the following beneficial effects: the operating noise of the intelligent cloth cutting machine can be reduced, and the production efficiency, operating stability, service life, and use safety of the intelligent cloth cutting machine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control circuits, and in particular to a control circuit of an intelligent cloth cutting machine with a brushless motor. Background Art

[0002] With the rapid development of the textile cutting industry, the performance requirements for cloth cutting machines are getting higher and higher. Traditional brushed motor driven cloth cutting machines have gradually failed to meet market demand due to their large size, loud noise, unstable performance and other problems.

[0003] At present, the intelligent cloth cutting machines on the market are generally driven by brushed motors. This driving method has many problems and defects:

[0004] 1. Large size: Traditional brushed motors are large in size, occupy a large space, and have low space utilization;

[0005] 2. Loud noise. During the operation of the brushless motor, due to mechanical friction and commutation sparks, it will generate loud noise, affecting the operating environment and the health of operators;

[0006] 3. Unstable performance. At low speed and high load, the brush motor control is unstable, resulting in uneven cloth cutting effect, affecting product quality;

[0007] 4. Spark interference. The sparks generated when the brush motor is commutating may interfere with other electronic devices and affect the normal operation of other electronic devices;

[0008] 5. Safety hazards. Traditional AC power supply has risks such as electric shock and fire, posing a threat to the safety of personnel and equipment. Utility Model Content

[0009] In order to solve the problems in the prior art, the utility model provides a control circuit for a brushless motor intelligent cloth cutting machine. By arranging a power supply, a power supply voltage adjustment circuit, an MCU main control circuit, a brushless motor drive circuit, a Hall induction detection circuit, an LED display indication circuit and a voltage signal acquisition circuit that cooperate with each other in the control circuit of the brushless motor intelligent cloth cutting machine, the production efficiency of the intelligent cloth cutting machine can be improved, the operating noise of the intelligent cloth cutting machine can be reduced, and the operating stability, service life and safety of the intelligent cloth cutting machine can be improved. This solves the problem that the intelligent cloth cutting machine in the prior art generally uses a brush motor with large noise, large size, unstable performance and potential safety hazards.

[0010] The utility model provides a control circuit of a brushless motor intelligent cloth cutting machine, comprising a power supply, a power supply voltage adjustment circuit, an MCU main control circuit, a brushless motor drive circuit, a Hall induction detection circuit, an LED display indication circuit and a voltage signal acquisition circuit, wherein the output end of the power supply is connected to the input end of the power supply voltage adjustment circuit, the output end of the power supply voltage adjustment circuit is connected to the MCU main control circuit, the Hall induction detection circuit and the LED display indication circuit for power supply, the input end of the MCU main control circuit is connected to the output end of the voltage signal acquisition circuit and the output end of the Hall induction detection circuit, and the M The input end of the CU main control circuit is also connected to a control button, the output end of the MCU main control circuit is connected to the input end of the brushless motor drive circuit and the input end of the LED display indication circuit, the output end of the brushless motor drive circuit is connected to the brushless motor drive of the intelligent cloth cutting machine, the input end of the Hall sensing detection circuit is electrically connected to the brushless motor of the intelligent cloth cutting machine, and the MCU main control circuit can automatically control the brushless motor drive circuit to drive the brushless motor of the intelligent cloth cutting machine to operate according to the information collected by the voltage signal acquisition circuit, the information fed back by the Hall sensing detection circuit, and the information input by the LED display indication circuit.

[0011] The utility model is further improved. A microprocessor U6 and a filter capacitor C12 are provided in the MCU main control circuit, wherein the microprocessor U6 is provided with 20 pins, the 9th pin of the microprocessor U6 is connected to one end of the filter capacitor C12 and the output end of the power supply voltage adjustment circuit, the other end of the filter capacitor C12 is grounded, the 19th pin of the microprocessor U6 is connected to the output end of the voltage signal acquisition circuit, the 8th, 10th and 13th pins of the microprocessor U6 are connected to the output end of the Hall induction detection circuit, the 20th, 11th and 3rd pins of the microprocessor U6 are connected to the output end of the LED display indication circuit, and the 1st, 2nd, 5th, 6th, 14th, 15th and 16th pins of the microprocessor U6 are connected to the input end of the brushless motor drive circuit.

[0012] The utility model is further improved, the power supply voltage adjustment circuit is provided with a voltage adjustment chip U5, a resistor R21, a capacitor C7 and a capacitor C8, wherein the voltage adjustment chip U5 is provided with 3 pins, the first pin of the voltage adjustment chip U5 is connected to one end of the capacitor C7, one end of the capacitor C8, the MCU main control circuit, the Hall induction detection circuit, and the LED display indication circuit, the third pin of the voltage adjustment chip U5 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to the output end of the power supply, the other end of the capacitor C7, the other end of the capacitor C8, and the second pin of the voltage adjustment chip U5 are grounded.

[0013] The utility model is further improved. The brushless motor drive circuit is provided with a transistor Q1, a drive chip U1, a resistor R1, a resistor R5, a resistor R6, a resistor R13 and a resistor R17, wherein the drive chip U1 is provided with 8 pins, the base of the transistor Q1 is connected to the 16th pin of the microprocessor U6 through the resistor R13, the collector of the transistor Q1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to one end of the resistor R1 and the 4th pin of the drive chip U1, the 3rd pin of the drive chip U1 is connected to the output end of the power supply and the other end of the resistor R1, the 2nd pin of the drive chip U1 is connected to the 6th pin of the microprocessor U6 through the resistor R6, the 1st pin of the drive chip U1 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U1 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q1 is grounded.

[0014] The utility model is further improved. The brushless motor drive circuit is provided with a transistor Q2, a drive chip U2, a resistor R2, a resistor R7, a resistor R8 and a resistor R14, wherein the drive chip U2 is provided with 8 pins, the base of the transistor Q2 is connected to the 15th pin of the microprocessor U6 through the resistor R14, the collector of the transistor Q2 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to one end of the resistor R2 and the 4th pin of the drive chip U2, the 3rd pin of the drive chip U2 is connected to the output end of the power supply and the other end of the resistor R2, the 2nd pin of the drive chip U2 is connected to the 5th pin of the microprocessor U6 through the resistor R7, the 1st pin of the drive chip U2 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U2 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q2 is grounded.

[0015] The utility model is further improved. The brushless motor drive circuit is provided with a transistor Q3, a drive chip U3, a resistor R3, a resistor R4, a resistor R9 and a resistor R15, wherein the drive chip U3 is provided with 8 pins, the base of the transistor Q3 is connected to the 14th pin of the microprocessor U6 through the resistor R15, the collector of the transistor Q3 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to one end of the resistor R3 and the 4th pin of the drive chip U3, the 3rd pin of the drive chip U3 is connected to the output end of the power supply and the other end of the resistor R3, the 2nd pin of the drive chip U3 is connected to the 2nd pin of the microprocessor U6 through the resistor R4, the 1st pin of the drive chip U3 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U3 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q3 is grounded.

[0016] The utility model is further improved, the Hall induction detection circuit is provided with a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R37 and a resistor R38, wherein one end of the resistor R34 is connected to one end of the resistor R33 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R33 is connected to the 1st pin of the voltage adjustment chip U5, the other end of the resistor R34 is connected to the 8th pin of the microprocessor U6, one end of the resistor R37 is connected to one end of the resistor R32 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R32 is connected to the 1st pin of the voltage adjustment chip U5, the other end of the resistor R37 is connected to the 10th pin of the microprocessor U6, one end of the resistor R38 is connected to one end of the resistor R31 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R31 is connected to the 1st pin of the voltage adjustment chip U5, and the other end of the resistor R38 is connected to the 13th pin of the microprocessor U6.

[0017] The utility model is further improved, the LED display indication circuit is provided with an LED red light D2, a resistor R23, an LED blue light D3, a resistor R26, an LED green light D4 and a resistor R27, wherein the positive pole of the LED red light D2 is connected to the 1st pin of the voltage adjustment chip U5 through the resistor R23, the negative pole of the LED red light D2 is connected to the 20th pin of the microprocessor U6, the positive pole of the LED blue light D3 is connected to the 1st pin of the voltage adjustment chip U5 through the resistor R26, the negative pole of the LED blue light D3 is connected to the 11th pin of the microprocessor U6, the positive pole of the LED green light D4 is connected to the 1st pin of the voltage adjustment chip U5 through the resistor R27, and the negative pole of the LED green light D4 is connected to the 3rd pin of the microprocessor U6.

[0018] The utility model is further improved, the voltage signal acquisition circuit is provided with a resistor R36 and a resistor R40, wherein one end of the resistor R36 is connected to the output end of the power supply, the other end of the resistor R36 is connected to one end of the resistor R40 and the 19th pin of the microprocessor U6, and the other end of the resistor R40 is grounded.

[0019] The utility model is further improved. The model of the microprocessor U6 is HC89S003AF4, the model of the voltage adjustment chip U5 is 78L05, and the models of the driver chip U1, the driver chip U2, and the driver chip U3 are all YDC4026 / 40V N+P.

[0020] Compared with the prior art, the beneficial effects of the utility model are: providing a control circuit for a brushless motor intelligent cloth cutting machine, by arranging a power supply, a power supply voltage adjustment circuit, an MCU main control circuit, a brushless motor drive circuit, a Hall sensing detection circuit, an LED display indication circuit and a voltage signal acquisition circuit that cooperate with each other in the control circuit of the brushless motor intelligent cloth cutting machine, the MCU main control circuit can automatically control the brushless motor drive circuit to drive the brushless motor of the intelligent cloth cutting machine to operate according to the information collected by the voltage signal acquisition circuit, the information fed back by the Hall sensing detection circuit, and the information input by the LED display indication circuit, and adopts a brushless motor and a brushless motor control circuit, which can improve the production efficiency of the intelligent cloth cutting machine, reduce the operating noise of the intelligent cloth cutting machine, reduce the occupied volume of the intelligent cloth cutting machine, and improve the operating stability, service life and use safety of the intelligent cloth cutting machine, and solves the problems in the prior art that the intelligent cloth cutting machine generally adopts a brush motor with large noise, large volume, unstable performance and potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a principle block diagram of a control circuit of a brushless motor intelligent cloth cutting machine of the utility model;

[0023] Figure 2 It is a circuit diagram of the MCU main control circuit of the utility model;

[0024] Figure 3 A circuit diagram of a power supply voltage adjustment circuit of the utility model;

[0025] Figure 4 A circuit diagram of a brushless motor drive circuit of the utility model;

[0026] Figure 5 It is a circuit diagram of the Hall induction detection circuit of the utility model;

[0027] Figure 6 The circuit diagram of the LED display indicator circuit of the utility model;

[0028] Figure 7 The utility model is a circuit diagram of a voltage signal acquisition circuit. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] like Figure 1-7 As shown, the utility model provides a control circuit of a brushless motor intelligent cloth cutting machine, including a power supply, a power supply voltage adjustment circuit, an MCU main control circuit, a brushless motor drive circuit, a Hall induction detection circuit, an LED display indication circuit and a voltage signal acquisition circuit. The output end of the power supply is connected to the input end of the power supply voltage adjustment circuit, the output end of the power supply voltage adjustment circuit is connected to the MCU main control circuit, the Hall induction detection circuit and the LED display indication circuit for power supply, the input end of the MCU main control circuit is connected to the output end of the voltage signal acquisition circuit and the output end of the Hall induction detection circuit, the input end of the MCU main control circuit is also connected to a control button, the output end of the MCU main control circuit is connected to the input end of the brushless motor drive circuit and the input end of the LED display indication circuit, the output end of the brushless motor drive circuit is connected to the brushless motor drive of the intelligent cloth cutting machine, and the input end of the Hall induction detection circuit is electrically connected to the brushless motor of the intelligent cloth cutting machine. In this embodiment, the MCU main control circuit can automatically control the brushless motor drive circuit to drive the brushless motor of the intelligent cloth cutting machine according to the information collected by the voltage signal acquisition circuit, the information fed back by the Hall sensing detection circuit, and the information input by the LED display indication circuit. The use of a brushless motor and a brushless motor control circuit can improve the production efficiency of the intelligent cloth cutting machine, reduce the operating noise of the intelligent cloth cutting machine, reduce the occupied volume of the intelligent cloth cutting machine, and improve the operating stability, service life and safety of use of the intelligent cloth cutting machine.

[0033] like Figure 2 As shown, the MCU main control circuit is provided with a microprocessor U6 and a filter capacitor C12, wherein the model of the microprocessor U6 is HC89S003AF4, and the microprocessor U6 is provided with 20 pins, the 9th pin of the microprocessor U6 is connected to one end of the filter capacitor C12 and the output end of the power supply voltage adjustment circuit, the other end of the filter capacitor C12 is grounded, the 19th pin of the microprocessor U6 is connected to the output end of the voltage signal acquisition circuit, the 8th, 10th, and 13th pins of the microprocessor U6 are connected to the output end of the Hall induction detection circuit, the 20th, 11th, and 3rd pins of the microprocessor U6 are connected to the output end of the LED display indication circuit, and the 1st, 2nd, 5th, 6th, 14th, 15th, and 16th pins of the microprocessor U6 are connected to the input end of the brushless motor drive circuit. In this embodiment, the MCU main control circuit is used to automatically control the brushless motor drive circuit to drive the brushless motor of the intelligent cloth cutting machine to operate according to the information collected by the voltage signal acquisition circuit, the information fed back by the Hall induction detection circuit, and the information input by the control button.

[0034] like Figure 3As shown, the power supply voltage adjustment circuit is provided with a voltage adjustment chip U5, a resistor R21, a capacitor C7 and a capacitor C8, wherein the model of the voltage adjustment chip U5 is 78L05, and the voltage adjustment chip U5 is provided with 3 pins, the first pin of the voltage adjustment chip U5 is connected to one end of the capacitor C7, one end of the capacitor C8, the MCU main control circuit, the Hall induction detection circuit, and the LED display indication circuit, the third pin of the voltage adjustment chip U5 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to the output end of the power supply, and the other end of the capacitor C7, the other end of the capacitor C8, and the second pin of the voltage adjustment chip U5 are grounded. In this embodiment, the power supply voltage adjustment circuit is used to supply power to the MCU main control circuit, the Hall induction detection circuit, and the LED display indication circuit.

[0035] like Figure 4As shown, the brushless motor drive circuit is provided with a transistor Q1, a drive chip U1, a resistor R1, a resistor R5, a resistor R6, a resistor R13 and a resistor R17, wherein the models of the drive chip U1, the drive chip U2 and the drive chip U3 are all YDC4026 / 40V N+P, the drive chip U1 is provided with 8 pins, the base of the transistor Q1 is connected to the 16th pin of the microprocessor U6 through the resistor R13, the collector of the transistor Q1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to one end of the resistor R1 and the 4th pin of the drive chip U1, the 3rd pin of the drive chip U1 is connected to the output end of the power supply and the other end of the resistor R1, the 2nd pin of the drive chip U1 is connected to the 6th pin of the microprocessor U6 through the resistor R6, the 1st pin of the drive chip U1 is connected to the 1st pin of the microprocessor U6 through the resistor R17, and the drive chip U1 The 5th, 6th, 7th and 8th pins are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q1 is grounded; the brushless motor drive circuit is provided with a transistor Q2, a drive chip U2, a resistor R2, a resistor R7, a resistor R8 and a resistor R14, wherein the drive chip U2 is provided with 8 pins, the base of the transistor Q2 is connected to the 15th pin of the microprocessor U6 through the resistor R14, the collector of the transistor Q2 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to one end of the resistor R2 and the 4th pin of the drive chip U2, the 3rd pin of the drive chip U2 is connected to the output end, The other end of the resistor R2 is connected, the second pin of the drive chip U2 is connected to the fifth pin of the microprocessor U6 through the resistor R7, the first pin of the drive chip U2 is connected to the first pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U2 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q2 is grounded; the brushless motor drive circuit is provided with a transistor Q3, a drive chip U3, a resistor R3, a resistor R4, a resistor R9 and a resistor R15, wherein the drive chip U3 is provided with 8 pins, and the base of the transistor Q3 is connected to the microprocessor U6 through the resistor R15. The 14th pin of the transistor Q3 is connected to the 14th pin of the microprocessor U6, the collector of the transistor Q3 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to one end of the resistor R3 and the 4th pin of the driver chip U3, the 3rd pin of the driver chip U3 is connected to the output end of the power supply and the other end of the resistor R3, the 2nd pin of the driver chip U3 is connected to the 2nd pin of the microprocessor U6 through the resistor R4, the 1st pin of the driver chip U3 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the driver chip U3 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q3 is grounded. In this embodiment, the brushless motor drive circuit is used to drive the brushless motor of the intelligent cloth cutting machine to operate according to the control information of the MCU main control circuit.

[0036] like Figure 5As shown, the Hall induction detection circuit is provided with a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R37 and a resistor R38, wherein one end of the resistor R34 is connected to one end of the resistor R33 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R33 is connected to the first pin of the voltage adjustment chip U5, the other end of the resistor R34 is connected to the eighth pin of the microprocessor U6, one end of the resistor R37 is connected to one end of the resistor R32 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R32 is connected to the first pin of the voltage adjustment chip U5, the other end of the resistor R37 is connected to the tenth pin of the microprocessor U6, one end of the resistor R38 is connected to one end of the resistor R31 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R31 is connected to the first pin of the voltage adjustment chip U5, and the other end of the resistor R38 is connected to the 13th pin of the microprocessor U6. In this embodiment, the Hall induction detection circuit is used to feed back the speed and position information of the brushless motor to the MCU main control circuit.

[0037] like Figure 6 As shown, the LED display indication circuit is provided with an LED red light D2, a resistor R23, an LED blue light D3, a resistor R26, an LED green light D4 and a resistor R27, wherein the positive electrode of the LED red light D2 is connected to the first pin of the voltage adjustment chip U5 through the resistor R23, the negative electrode of the LED red light D2 is connected to the 20th pin of the microprocessor U6, the positive electrode of the LED blue light D3 is connected to the first pin of the voltage adjustment chip U5 through the resistor R26, the negative electrode of the LED blue light D3 is connected to the 11th pin of the microprocessor U6, the positive electrode of the LED green light D4 is connected to the first pin of the voltage adjustment chip U5 through the resistor R27, and the negative electrode of the LED green light D4 is connected to the third pin of the microprocessor U6. In this embodiment, the LED display indication circuit is used to display the operating status of the intelligent cloth cutting machine.

[0038] like Figure 7 As shown, the voltage signal acquisition circuit is provided with a resistor R36 and a resistor R40, wherein one end of the resistor R36 is connected to the output end of the power supply, the other end of the resistor R36 is connected to one end of the resistor R40 and the 19th pin of the microprocessor U6, and the other end of the resistor R40 is grounded. In this embodiment, the voltage signal acquisition circuit is used to collect voltage information at the input end of the power supply voltage adjustment circuit and feed it back to the MCU main control circuit.

[0039] As can be seen from the above, the utility model provides a control circuit for a brushless motor intelligent cloth cutting machine. By arranging a power supply, a power supply voltage adjustment circuit, an MCU main control circuit, a brushless motor drive circuit, a Hall sensing detection circuit, an LED display indication circuit and a voltage signal acquisition circuit that cooperate with each other in the control circuit of the brushless motor intelligent cloth cutting machine, the MCU main control circuit can automatically control the brushless motor drive circuit to drive the brushless motor of the intelligent cloth cutting machine to operate according to the information collected by the voltage signal acquisition circuit, the information fed back by the Hall sensing detection circuit and the information input by the LED display indication circuit. The brushless motor and the brushless motor control circuit are adopted, which can improve the production efficiency of the intelligent cloth cutting machine, reduce the operating noise of the intelligent cloth cutting machine, reduce the occupied volume of the intelligent cloth cutting machine, and improve the operating stability, service life and use safety of the intelligent cloth cutting machine, thereby solving the problems in the prior art that the intelligent cloth cutting machine generally adopts a brush motor with large noise, large volume, unstable performance and potential safety hazards.

[0040] The specific implementation modes described above are preferred implementation modes of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation modes, and all equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A control circuit of a brushless motor intelligent cloth cutting machine, characterized in that: The invention comprises a power supply, a power supply voltage adjustment circuit, an MCU main control circuit, a brushless motor drive circuit, a Hall induction detection circuit, an LED display indication circuit and a voltage signal acquisition circuit, wherein the output end of the power supply is connected to the input end of the power supply voltage adjustment circuit, the output end of the power supply voltage adjustment circuit is connected to the MCU main control circuit, the Hall induction detection circuit and the LED display indication circuit for power supply, the input end of the MCU main control circuit is connected to the output end of the voltage signal acquisition circuit and the output end of the Hall induction detection circuit, the input end of the MCU main control circuit is also connected to a control button, the output end of the MCU main control circuit is connected to the input end of the brushless motor drive circuit and the input end of the LED display indication circuit, the output end of the brushless motor drive circuit is connected to the brushless motor drive of the intelligent cloth cutting machine, the input end of the Hall induction detection circuit is electrically connected to the brushless motor of the intelligent cloth cutting machine, and the MCU main control circuit can automatically control the brushless motor drive circuit to drive the brushless motor of the intelligent cloth cutting machine to operate according to the information collected by the voltage signal acquisition circuit, the information fed back by the Hall induction detection circuit and the information input by the LED display indication circuit.

2. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 1 is characterized in that: The MCU main control circuit is provided with a microprocessor U6 and a filter capacitor C12, wherein the microprocessor U6 is provided with 20 pins, the 9th pin of the microprocessor U6 is connected to one end of the filter capacitor C12 and the output end of the power supply voltage adjustment circuit, the other end of the filter capacitor C12 is grounded, the 19th pin of the microprocessor U6 is connected to the output end of the voltage signal acquisition circuit, the 8th, 10th and 13th pins of the microprocessor U6 are connected to the output end of the Hall induction detection circuit, the 20th, 11th and 3rd pins of the microprocessor U6 are connected to the output end of the LED display indication circuit, and the 1st, 2nd, 5th, 6th, 14th, 15th and 16th pins of the microprocessor U6 are connected to the input end of the brushless motor drive circuit.

3. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 2 is characterized in that: The power supply voltage adjustment circuit is provided with a voltage adjustment chip U5, a resistor R21, a capacitor C7 and a capacitor C8, wherein the voltage adjustment chip U5 is provided with 3 pins, the first pin of the voltage adjustment chip U5 is connected to one end of the capacitor C7, one end of the capacitor C8, the MCU main control circuit, the Hall induction detection circuit, and the LED display indication circuit, the third pin of the voltage adjustment chip U5 is connected to one end of the resistor R21, the other end of the resistor R21 is connected to the output end of the power supply, the other end of the capacitor C7, the other end of the capacitor C8, and the second pin of the voltage adjustment chip U5 are grounded.

4. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 3 is characterized in that: The brushless motor drive circuit is provided with a transistor Q1, a drive chip U1, a resistor R1, a resistor R5, a resistor R6, a resistor R13 and a resistor R17, wherein the drive chip U1 is provided with 8 pins, the base of the transistor Q1 is connected to the 16th pin of the microprocessor U6 through the resistor R13, the collector of the transistor Q1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to one end of the resistor R1 and the 4th pin of the drive chip U1, the 3rd pin of the drive chip U1 is connected to the output end of the power supply and the other end of the resistor R1, the 2nd pin of the drive chip U1 is connected to the 6th pin of the microprocessor U6 through the resistor R6, the 1st pin of the drive chip U1 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U1 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q1 is grounded.

5. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 4 is characterized in that: The brushless motor drive circuit is provided with a transistor Q2, a drive chip U2, a resistor R2, a resistor R7, a resistor R8 and a resistor R14, wherein the drive chip U2 is provided with 8 pins, the base of the transistor Q2 is connected to the 15th pin of the microprocessor U6 through the resistor R14, the collector of the transistor Q2 is connected to one end of the resistor R8, the other end of the resistor R8 is connected to one end of the resistor R2 and the 4th pin of the drive chip U2, the 3rd pin of the drive chip U2 is connected to the output end of the power supply and the other end of the resistor R2, the 2nd pin of the drive chip U2 is connected to the 5th pin of the microprocessor U6 through the resistor R7, the 1st pin of the drive chip U2 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U2 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q2 is grounded.

6. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 5 is characterized in that: The brushless motor drive circuit is provided with a transistor Q3, a drive chip U3, a resistor R3, a resistor R4, a resistor R9 and a resistor R15, wherein the drive chip U3 is provided with 8 pins, the base of the transistor Q3 is connected to the 14th pin of the microprocessor U6 through the resistor R15, the collector of the transistor Q3 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to one end of the resistor R3 and the 4th pin of the drive chip U3, the 3rd pin of the drive chip U3 is connected to the output end of the power supply and the other end of the resistor R3, the 2nd pin of the drive chip U3 is connected to the 2nd pin of the microprocessor U6 through the resistor R4, the 1st pin of the drive chip U3 is connected to the 1st pin of the microprocessor U6 through the resistor R17, the 5th, 6th, 7th and 8th pins of the drive chip U3 are connected to the brushless motor drive of the intelligent cloth cutting machine, and the emitter of the transistor Q3 is grounded.

7. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 6 is characterized in that: The Hall induction detection circuit is provided with a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R37 and a resistor R38, wherein one end of the resistor R34 is connected to one end of the resistor R33 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R33 is connected to the first pin of the voltage adjustment chip U5, the other end of the resistor R34 is connected to the eighth pin of the microprocessor U6, one end of the resistor R37 is connected to one end of the resistor R32 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R32 is connected to the first pin of the voltage adjustment chip U5, the other end of the resistor R37 is connected to the tenth pin of the microprocessor U6, one end of the resistor R38 is connected to one end of the resistor R31 and the brushless motor of the intelligent cloth cutting machine, the other end of the resistor R31 is connected to the first pin of the voltage adjustment chip U5, and the other end of the resistor R38 is connected to the 13th pin of the microprocessor U6.

8. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 7 is characterized in that: The LED display indication circuit is provided with an LED red light D2, a resistor R23, an LED blue light D3, a resistor R26, an LED green light D4 and a resistor R27, wherein the positive electrode of the LED red light D2 is connected to the first pin of the voltage adjustment chip U5 through the resistor R23, the negative electrode of the LED red light D2 is connected to the 20th pin of the microprocessor U6, the positive electrode of the LED blue light D3 is connected to the first pin of the voltage adjustment chip U5 through the resistor R26, the negative electrode of the LED blue light D3 is connected to the 11th pin of the microprocessor U6, the positive electrode of the LED green light D4 is connected to the first pin of the voltage adjustment chip U5 through the resistor R27, and the negative electrode of the LED green light D4 is connected to the third pin of the microprocessor U6.

9. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 8, characterized in that: The voltage signal acquisition circuit is provided with a resistor R36 and a resistor R40, wherein one end of the resistor R36 is connected to the output end of the power supply, the other end of the resistor R36 is connected to one end of the resistor R40 and the 19th pin of the microprocessor U6, and the other end of the resistor R40 is grounded.

10. The control circuit of the brushless motor intelligent cloth cutting machine according to claim 9, characterized in that: The model of the microprocessor U6 is HC89S003AF4, the model of the voltage adjustment chip U5 is 78L05, and the models of the driver chip U1, the driver chip U2, and the driver chip U3 are all YDC4026 / 40V N+P.

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