Motor drive and control integrated circuit board and motor drive system

Abstract

The utility model discloses a motor driving and control integrated circuit board and a motor driving system. The circuit board comprises a memory, a driving chip, a control chip and a power supply module, the memory is used for storing related configuration information of motor driving; the driving chip is used for receiving a control signal of the control chip to drive at least one external motor to move and feeding back the motion information of the motor to the control chip; the control chip is used for sending a control signal to the driving chip, and the control chip is also used for obtaining configuration information from the memory and sending the configuration information to the driving chip to complete motion configuration of the motor when the control chip is initialized, and modifying the configuration information stored in the memory; the power module is used for connecting an external power supply to provide power. According to the invention, a driving core circuit and a control core circuit are integrated together by adopting a control and driving integrated form, so that the number of connecting parts and cables is reduced, the overall efficiency of the system is improved, and meanwhile, the problems caused by compatibility are avoided.

Description

Technical Field

[0001] The present application belongs to the field of automation control technology, and in particular, relates to a motor drive control integrated circuit board and a motor drive system. Background Art

[0002] Motor drive systems are widely used in intelligent robot systems, automotive systems, and industrial machinery and equipment systems, and have a broad market and application prospects. In the current market, most stepper motor applications use separate control drivers and controllers, which will inevitably lead to excessive and complex wiring of control cables, communication cables, and other cables in some complex electromechanical control systems, thus affecting the efficiency of the entire system and the resulting compatibility issues. Utility Model Content

[0003] The present application provides a motor drive control integrated circuit board and a motor drive system, aiming to solve the problems of low system efficiency and poor compatibility of existing motor drive systems due to low integration.

[0004] In a first aspect, the present application provides a motor drive control integrated circuit board, which includes a memory, a drive chip, a control chip and a power module;

[0005] The memory is used to store relevant configuration information of the motor drive;

[0006] The driving chip is used to receive the control signal of the control chip to drive at least one external motor to move, and feed back the movement information of the motor to the control chip;

[0007] The control chip is used to send a control signal to the drive chip. The control chip is also used to obtain the configuration information from the memory and send it to the drive chip to complete the motion configuration of the motor when the control chip is initialized, and to modify the configuration information stored in the memory;

[0008] The power module is used to connect to an external power source to provide power.

[0009] Furthermore, the control chip is connected to the drive chip via an SPI interface.

[0010] Furthermore, the circuit board also includes a photoelectric isolation module, which is connected to the control chip and is used for performing photoelectric conversion on external signals.

[0011] Furthermore, the circuit board also includes a USB interface, and the control chip communicates with an external device via the USB interface.

[0012] Furthermore, the power supply module includes a power supply circuit and a step-down circuit, the power supply circuit is connected to the driving chip, and the power supply circuit is connected to the control chip and the storage module through the step-down module.

[0013] Furthermore, the control chip adopts a single-chip microcomputer STM32F407VET6.

[0014] Furthermore, the driving chip adopts the stepping motor driving chip TMC2130.

[0015] In a second aspect, the present application provides a motor drive system, which includes the motor drive control integrated circuit board as described above.

[0016] Compared with the prior art, the present application integrates the two core circuits of drive and control by adopting the form of integrated control and drive, thereby reducing the number of connecting components and cables, effectively reducing energy loss, and thus improving the overall efficiency of the system, while avoiding related problems caused by compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0018] Figure 1 A structural block diagram of a motor drive control integrated circuit board provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Directional terms mentioned in this application, such as "upper", "lower", "front", "back", "left", "right", etc., are only used to refer to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand this application, but not to limit this application. In addition, in the drawings, structures with similar or identical structures are represented by the same reference numerals.

[0021] In a first aspect, the present application provides a motor drive control integrated circuit board 10, Figure 1The structural block diagram of the motor drive control integrated circuit board in one embodiment of the present application is shown. The motor drive control integrated circuit board of the present application can be widely used in the fields of industrial automation, robot control, electric vehicles, etc. For example, in the field of industrial automation, it can be used as a drive control unit of the motor to achieve precise control and motion adjustment of the motor; in the field of robot control, it can be connected to the robot's control system to achieve precise control of the robot's joint motors; in the field of electric vehicles, it can be used for the motor drive control of electric vehicles to improve the driving performance and stability of electric vehicles. Figure 1 As shown, an embodiment of a motor drive control integrated circuit board 10 of the present application includes a memory 13, a drive chip 14, a control chip 15 and a power module; the memory 13 is used to store relevant configuration information of the motor drive; the drive chip 14 is used to receive the control signal of the control chip 15 to drive at least one external motor 20 to move, and feed back the movement information of the motor to the control chip 15; the control chip 15 is used to send a control signal to the drive chip 14, and the control chip 15 is also used to obtain the configuration information from the memory 13 and send it to the drive chip 14 to complete the movement configuration of the motor when the control chip 15 is initialized, and to modify the configuration information stored in the memory 13; the power module is used to connect an external power supply to provide power.

[0022] In this embodiment, one end of the driver chip 14 is connected to one or more external motors 20, which are used to send a drive signal to the external motor 20 to drive the motor to move; the other end of the driver chip 14 is connected to the control chip 15, and the control chip 15 is used to send a control signal to the driver chip 14. The driver chip 14 drives the external motor 20 by receiving the control signal of the control chip 15, and feeds back the movement information of the motor to the control chip 15; wherein, the external motor 20 can be a stepping motor, a servo motor, etc. The control chip 15 is also connected to a memory 13, and the memory 13 is used to store the relevant configuration information of the motor drive. When the control chip 15 is initialized, the memory 13 can provide the control chip 15 with the stored relevant parameters of the motor drive and other movement-related parameters; in addition, the data stored in the memory 13 can be increased or decreased by the control chip 15. By modifying the configuration information in the memory 13, different motor drive requirements can be met. The power module is used to connect the external power supply. When the external power supply inputs power and is filtered by the power module, the power is provided to various parts of the circuit board. Among them, the power module has overvoltage and overcurrent protection functions. When the power input is abnormal, it can automatically cut off the power supply to protect the circuit board from damage. It also has an anti-reverse connection circuit to prevent the internal circuit from being burned due to incorrect power line connection.

[0023] The circuit board of this embodiment adopts the form of integrated control and drive to integrate the two core circuits of drive and control, which reduces the number of connecting components and cables, effectively reduces energy loss, and thus improves the overall efficiency of the system.

[0024] Furthermore, the control chip 15 and the driver chip 14 communicate via SPI (serial peripheral interface) to achieve efficient data transmission and control. Compared with the traditional parallel communication, the communication mode of the SPI interface has a much higher transmission rate than the traditional parallel communication mode, and it only requires fewer lines for data transmission, which can further simplify the wiring of the circuit board; therefore, the communication mode of the SPI interface can achieve better integration to further improve the system efficiency.

[0025] In an exemplary embodiment, the motor drive control integrated circuit board 10 further includes a photoelectric isolation module 16 , which is connected to the control chip 15 and is used for performing photoelectric conversion on external signals.

[0026] The main function of the photoelectric isolation module 16 is to isolate and transmit signals. It works based on the principle of photoelectric conversion, and can convert electrical signals into optical signals, and then convert optical signals back into electrical signals, thereby achieving signal isolation. This conversion and transmission process effectively isolates input and output signals, avoids problems such as ground loops and common impedance, and thus improves the system's anti-interference ability.

[0027] In an exemplary embodiment, the motor drive control integrated circuit board 10 further includes a USB interface 17 , and the control chip 15 is connected to an external device for communication via the USB interface 17 .

[0028] The control chip 15 can achieve communication connection with an external device through the USB interface 17 to receive instructions from the external device to control the drive chip 14, thereby improving the flexibility of the control system.

[0029] In an exemplary embodiment, the power module includes a power supply circuit 11 and a buck circuit 12 . The power supply circuit 11 is connected to a driving chip 14 . The power supply circuit 11 is connected to a control chip 15 and a storage module through the buck module.

[0030] The power supply module includes a power supply circuit 11 and a step-down circuit 12. The power supply circuit 11 is used to connect an external power supply, filter the external power supply, and provide power to the driver chip 14. In addition, the power supply circuit 11 is also connected to the step-down circuit 12. After the step-down circuit 12 reduces the voltage, it provides a corresponding stable working voltage to the control chip 15 and the memory 13.

[0031] Optionally, the control chip 15 in the above embodiments adopts a single chip microcomputer STM32F407VET6. The driving chip 14 adopts a stepper motor driving chip 14TMC2130.

[0032] In a second aspect, the present application provides a motor drive system, the motor drive system comprising the motor drive control integrated circuit board as described above. The motor drive system may be a motor drive system in the fields of intelligent robot systems, automotive systems, industrial machinery and equipment systems, etc.

[0033] Compared with the related art, the present application integrates the core circuits of the two parts of driving and controlling by adopting the form of control plus driving integration, which reduces the number of connecting components and cables, effectively reduces energy loss, and thus improves the overall efficiency of the system. In addition, the control chip and the driver chip communicate through SPI (serial peripheral interface) to achieve efficient data transmission and control; the communication mode of the SPI interface is adopted, and its transmission rate is much higher than the traditional parallel communication mode compared with the traditional parallel communication, and it only needs fewer lines for data transmission, which can further simplify the wiring of the circuit board; therefore, the communication mode of the SPI interface can achieve better integration to further improve the efficiency of the system. At the same time, the photoelectric isolation module is matched for signal isolation and transmission. It works based on the principle of photoelectric conversion, can convert electrical signals into optical signals, and then convert optical signals back to electrical signals, so as to achieve signal isolation. This conversion and transmission process effectively isolates the input and output signals, avoids problems such as ground loops and common impedance, thereby improving the anti-interference ability of the system and enhancing the stability and reliability of the system.

[0034] It is to be understood that the present application is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope protected by the present application.

Claims

1. A motor drive control integrated circuit board, characterized in that: Including memory, driver chip, control chip and power module; The memory is used to store relevant configuration information of the motor drive; The driving chip is used to receive the control signal of the control chip to drive at least one external motor to move, and feed back the movement information of the motor to the control chip; The control chip is used to send a control signal to the drive chip. The control chip is also used to obtain the configuration information from the memory and send it to the drive chip to complete the motion configuration of the motor when the control chip is initialized, and to modify the configuration information stored in the memory; The power module is used to connect to an external power source to provide power.

2. The circuit board according to claim 1, characterized in that: The control chip is connected to the drive chip via an SPI interface.

3. The circuit board according to claim 1 or 2, characterized in that: The circuit board also includes a photoelectric isolation module, which is connected to the control chip and is used for performing photoelectric conversion on external signals.

4. The circuit board according to claim 1, characterized in that: The circuit board also includes a USB interface, and the control chip is connected to an external device for communication via the USB interface.

5. The circuit board according to claim 1, characterized in that: The power supply module includes a power supply circuit and a step-down circuit. The power supply circuit is connected to the driving chip. The power supply circuit is connected to the control chip and the storage module through the step-down module.

6. The circuit board according to claim 1, characterized in that: The control chip adopts the single-chip microcomputer STM32F407VET6.

7. The circuit board according to claim 1, characterized in that: The driving chip adopts the stepper motor driving chip TMC2130.

8. A motor drive system, characterized in that: The motor drive system comprises the motor drive control integrated circuit board according to any one of claims 1 to 7.

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