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Brushless DC motor is permanent magnet synchronous motor with trapezoidal back EMF. Brushless DC motor replaces conventional brushed motors due to its advantages like higher efficiency. In this paper, BLDC drive circuit and control is simulated. A highly efficient second order Butterworth passive filter is designed and implemented. Digital control of BLDC motor using pulse width modulation of 50 KHz PWM switching frequency is implemented in Field Programmable Gate Array. Maxon EC 60W motor is used for hardware implementation and testing. This paper discusses various implementation aspects related to BLDC motor drive and control circuit.

Brushless DC Motor Drive and Control circuit Simulation and FPGA implementation