Motor drive integrated circuit supporting multi-protocol compatibility

Abstract

A kind of motor drive integrated circuit supporting multi-protocol compatibility, including main control unit, communication interface unit, drive control unit, power drive unit, auxiliary function unit and power conversion unit, the utility model rich communication interface unit supports multiple protocols, can communicate with different protocol equipment, improve the compatibility and application range of integrated circuit, each functional module high integration, compact structure, it is convenient to integrate application in various equipment, drive control unit combines the current detection of power drive unit and other functions, can realize the efficient, accurate drive control to motor, the state indication of auxiliary function unit, fault prompt, temperature monitoring and the function such as brake control, guarantee the safety and stability of integrated circuit work.

Description

Technical Field

[0001] This utility model relates to the field of motor drive technology, and in particular to a motor drive integrated circuit that supports multi-protocol compatibility. Background Technology

[0002] In the field of motor drive technology, with the rapid development of industrial automation and intelligent equipment, motor drive integrated circuits, as core control components, directly affect the efficiency and reliability of the entire system through their performance and compatibility. Currently, most motor drive integrated circuits on the market employ single or limited communication protocols, such as supporting only one fieldbus or custom protocol. This design leads to difficulties in interconnection and interoperability between devices using different protocols, resulting in poor compatibility and limiting their application in multi-protocol mixed environments. Furthermore, traditional drive circuits typically suffer from low integration, large size, and unclear functional module division, which not only increases the complexity of system design but also leads to higher software development and maintenance costs.

[0003] Furthermore, existing technologies lack unified support for multiple communication protocols and also lack auxiliary functions such as high-precision current detection, temperature monitoring, and fault diagnosis. These issues make it difficult for traditional motor drive integrated circuits to meet the demands of modern industry for high efficiency, high precision, multi-protocol compatibility, and miniaturization. Therefore, there is an urgent need for a motor drive integrated circuit that supports multi-protocol compatibility, is highly integrated, and has comprehensive auxiliary functions to improve overall system performance and reduce development and application costs. Summary of the Invention

[0004] The present invention aims to address the shortcomings of the prior art by providing a motor drive integrated circuit that supports multi-protocol compatibility.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A multi-protocol compatible motor drive integrated circuit includes a main control unit, a communication interface unit, a drive control unit, a power drive unit, an auxiliary function unit, and a power conversion unit.

[0007] The main control unit uses a microcontroller as the control core to receive instructions, process signals, and send control signals to the drive control unit.

[0008] The communication interface unit includes multiple communication interfaces to achieve multi-protocol compatible communication and receive instructions and data from different protocols;

[0009] The drive control unit includes a chip for parameter configuration management, receives control signals from the main control unit, and sends drive control signals to the power drive unit;

[0010] The power drive unit consists of a drive circuit and is used to drive the motor. It has a three-phase drive control terminal and a current detection terminal.

[0011] The auxiliary function unit includes status lights, error status lights, a temperature sensor, and a brake control output module, which are used to realize circuit status monitoring and protection functions.

[0012] The power conversion unit is a DC-DC converter module, used to convert the input driver supply voltage into a stable power supply required by various parts of the circuit.

[0013] The communication interface unit includes at least one of the following: CAN interface, EtherCa slave host interface, EtherCat slave mast interface, USB-OTG Type-A interface, RS232 Debug Type-C interface, and JTAG debug interface.

[0014] The main control unit and the drive control unit communicate with each other via SPI and UART interfaces to transmit control signals.

[0015] The drive control unit is also connected to a HALL / quadrature encoder interface and an RTMI debugging interface for motor parameter configuration and debugging.

[0016] The power drive unit is composed of a three-phase drive circuit with MOSFETs, and has three-phase drive control terminals (U, V, W) and current detection terminals (CUR U, CURW).

[0017] The temperature sensor of the auxiliary function unit is connected to the drive control unit via an ADC to realize the acquisition and processing of temperature signals.

[0018] The power conversion unit is a DC-DC converter module with an input voltage range of 8-50V.

[0019] The auxiliary function unit also includes a brake control output module for brake control of the motor.

[0020] The beneficial effects of this utility model are as follows: The rich communication interface units of this utility model support multiple protocols and can communicate with devices of different protocols, which improves the compatibility and applicability of the integrated circuit. The functional modules have a high degree of integration and a compact structure, which facilitates integration and application in various devices. The drive control unit, combined with the current detection and other functions of the power drive unit, can realize efficient and precise drive control of the motor. The auxiliary functional units have functions such as status indication, fault indication, temperature monitoring and brake control, which ensure the safe and stable operation of the integrated circuit. Attached Figure Description

[0021] Figure 1 This is a structural framework diagram of an embodiment of the present utility model;

[0022] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Example

[0025] A multi-protocol compatible motor drive integrated circuit includes a main control unit, a communication interface unit, a drive control unit, a power drive unit, an auxiliary function unit, and a power conversion unit.

[0026] The main control unit uses a microcontroller as the control core. The microcontroller is a Xianji Semiconductor HPM6E00 microcontroller, and the Beckhoff authorized EtherCAT slave station is used to receive various protocol instructions and data from the communication interface unit, process signals and send control signals to the drive control unit to coordinate the work of each module.

[0027] The communication interface unit includes multiple communication interfaces to achieve multi-protocol compatible communication and receive instructions and data from different protocols;

[0028] The drive control unit contains a chip for parameter configuration management, the chip model is TMC9660, which receives control signals from the main control unit and sends drive control signals to the power drive unit;

[0029] The power drive unit is composed of a drive circuit made up of MOSFETs, used to drive the motor, and has a three-phase drive control terminal and a current detection terminal.

[0030] The auxiliary function unit includes status lights, error status lights, temperature sensors, and a brake control output module, which are used to realize circuit status monitoring and protection functions.

[0031] The power conversion unit is a DC-DC converter module, which is used to convert the input driver supply voltage into a stable power supply required by various parts of the circuit, ensuring the normal operation of each module.

[0032] The communication interface unit includes at least one of the following: CAN interface, EtherCa slave host interface, EtherCat slave mast interface, USB-OTG Type-A interface, RS232 Debug Type-C interface, and JTAG debug interface. It is compatible with multiple communication protocols, enabling the integrated circuit to communicate with devices using different protocols, receive instructions and data, and expand the application range.

[0033] The main control unit and the drive control unit communicate with each other via SPI and UART interfaces to transmit control signals.

[0034] The drive control unit is also connected to a HALL / quadrature encoder interface and an RTMI debugging interface for motor parameter configuration and debugging.

[0035] The power drive unit consists of a three-phase drive circuit composed of MOSFETs, and has three-phase drive control terminals (U, V, W) and current detection terminals (CURU, CURW). The motor is driven in three phases through the three-phase drive control terminals (U, V, W), and the motor current is monitored through the CURU, CURW current detection terminals, providing a basis for precise control and protection.

[0036] The temperature sensor of the auxiliary function unit is connected to the drive control unit via an ADC to acquire and process temperature signals, preventing the circuit from being damaged due to excessive temperature.

[0037] The power conversion unit is a DC-DC converter module with an input voltage range of 8-50V. It converts the input driver power supply voltage into a stable power supply required by each part of the circuit, ensuring the normal operation of each module.

[0038] The auxiliary function unit also includes a brake control output module for brake control of the motor.

[0039] When this invention is in operation, the driver power supply voltage (8-50V) is input and converted into a stable power supply required by each module via a DC-DC converter module. The main control unit (Xianji Semiconductor HPM6E00 microcontroller, Beckhoff authorized EtherCAT slave) receives instructions and data of different protocols (EtherCAT, CAN, etc.) through various interfaces of the communication interface unit, and then sends control signals to the drive control unit (TMC9660 chip) through interfaces such as SPI and UART. The TMC9660 chip can configure and debug motor parameters through the encoder interface (HALL / quadrature) and RTMI debugging interface, and then sends drive control signals to the power drive unit (MOS transistor drive circuit). The MOS transistor drive circuit drives the motor in three phases through the U, V, and W three-phase drive control terminals, and CUR U and CUR W are used for current detection. The status lights of the auxiliary function unit indicate the working status, the error status lights indicate faults, the temperature sensor collects temperature signals through ADC and transmits them to the drive control unit, and the brake control output module performs brake control.

[0040] Through the coordinated operation of its various modules, this integrated circuit achieves efficient, precise, safe, and stable drive control of the motor under multi-protocol compatibility.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A motor drive integrated circuit supporting multi-protocol compatibility, characterized in that, It includes a main control unit, a communication interface unit, a drive control unit, a power drive unit, auxiliary function units, and a power conversion unit. The main control unit uses a microcontroller as the control core to receive instructions, process signals, and send control signals to the drive control unit. The communication interface unit includes multiple communication interfaces to achieve multi-protocol compatible communication and receive instructions and data from different protocols; The drive control unit includes a chip for parameter configuration management, receives control signals from the main control unit, and sends drive control signals to the power drive unit; The power drive unit consists of a drive circuit and is used to drive the motor. It has a three-phase drive control terminal and a current detection terminal. The auxiliary function unit includes status lights, error status lights, temperature sensors, and a brake control output module, which are used to realize circuit status monitoring and protection functions. The power conversion unit is a DC-DC converter module, used to convert the input driver supply voltage into a stable power supply required by various parts of the circuit.

2. The motor drive integrated circuit supporting multi-protocol compatibility according to claim 1, characterized in that, The communication interface unit includes at least one of the following: CAN interface, EtherCa slave host interface, EtherCat slave mast interface, USB-OTG Type-A interface, RS232 Debug Type-C interface, and JTAG debug interface.

3. The motor drive integrated circuit supporting multi-protocol compatibility according to claim 2, characterized in that, The main control unit and the drive control unit communicate with each other via SPI and UART interfaces to transmit control signals.

4. A motor drive integrated circuit supporting multi-protocol compatibility according to claim 3, characterized in that, The drive control unit is also connected to a HALL / quadrature encoder interface and an RTMI debugging interface for motor parameter configuration and debugging.

5. A motor drive integrated circuit supporting multi-protocol compatibility according to claim 4, characterized in that, The power drive unit is composed of a three-phase drive circuit with MOS transistors, and has three-phase drive control terminals (U, V, W) and current detection terminals (CUR U, CURW).

6. A motor drive integrated circuit supporting multi-protocol compatibility according to claim 5, characterized in that, The temperature sensor of the auxiliary function unit is connected to the drive control unit via an ADC to realize the acquisition and processing of temperature signals.

7. A motor drive integrated circuit supporting multi-protocol compatibility according to claim 6, characterized in that, The power conversion unit is a DC-DC converter module with an input voltage range of 8-50V.

8. A motor drive integrated circuit supporting multi-protocol compatibility according to claim 1, characterized in that, The auxiliary function unit also includes a brake control output module for brake control of the motor.

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