hi im dida, i would like to get the details vhdl code for Brushless dc motor controller with 20 KHz fpga board, with 3 phase 120degree for each phase. i need help on how to controll that 120 degree phase on my clock in fpga
thank you for the info, i would gladly wait for an answer.

Abstract
Because of its high performance, brushless DC motors are widely used in motor vehicles. In this paper, according to analysis of present motor control system, a novel hardware structure of motor control system was presented. It is based on Field Programmable Gate Arrays (FPGA) and Digital Signal Processor (DSP). According to the function needed in motor control and the structure feature of FPGA and DSP, the tasks taken by FPGA and DSP were divided. A functional design of FPGA in a brushless DC motor system based on FPGA and DSP was completed by using modular design method. All the function modules are programmed by Very-High-Speed Integrated Circuit Hardware Description Language (VHDL).The function modules implemented in FPGA were introduced in detail. The advantage of the system is its good operational performance and expansibility. The application of FPGA can greatly simplify the design of peripheral circuits and release DSP from tedious operation. The simulation and experiment results verified its validity, and it can also act as an example for the application of FPGA in motor control field.

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