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                                                • Introduction to Embedded CAN Bus (low-level details)

                                                  01-26

                                                  1 IntroductionThe CAN bus was developed by the German BOSCH company, and the maximum rate can reach 1Mbps. CAN's fault tolerance is particularly strong, and the CAN controller has built-in powerful error detection and processing mechanisms. In addition, unlike traditional networks (such as USB or Ethernet), CAN nodes will not transmit large data blocks between nodes. A CAN message can transmit up to 8 bytes of user data. Short data packets can also make the system better The stability. The CAN bus has a bus arbitration mechanism and can form a multi-master system.2. CAN StandardCAN is a serial communication bus defined by the Internationa

                                                • The origin of the motor sine wave controller

                                                  11-21

                                                  A sine wave is a signal with the most single frequency component, and it is named because the waveform of this signal is a mathematical sine curve. Any complex signal, such as a music signal, can be seen as a composite of many sine waves of different frequencies and sizes.       In the 1970s, Siemens engineer F. Blaschke first proposed the asynchronous motor vector control theory to solve the AC motor torque control problem. The basic principle of vector control is to measure and control the stator current vector of the asynchronous motor, and control the excitation current and torque current of the asynchronous

                                                • Overview of Permanent Magnet Synchronous Motor Application

                                                  11-21

                                                          Permanent magnet synchronous motors (PMSM) are very similar to AC induction motors or brushless DC motors (BLDC). They all have permanent magnetic rotors and wound stators.        PMSM motors usually use sine wave control, and BLDC motors usually use trapezoidal signal control, trapezoidal signal is also called six-step commutation.       The sinusoidal control of PMSM is highly efficient, and the motor operates smoothly, which minimizes vibration and reduces noise. The use of field-oriented control (FOC) technology for PMSM m

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