15V to 60V – Three-Phase Brushless DC Motor Pre-Driver

15V to 60V – Three-Phase Brushless DC Motor Pre-Driver


The project presented here is a three-phase BLDC motor pre-driver. The project consists of 3x half-bridge IR2101 driver IC and 6 channel high current N-MOSFETS. The project can be configured as 3 independent half-bridges H-bridge for a brushed DC motor, or a single high current brushless motor driver. The rotor position can be detected using 3 hall sensors assembled in the motor. Hall-effect shaft position sensors are used to control the switching sequence of the three 1/2 bridge outputs. The bridge voltage can vary between 15V and 60V and the maximum summed bridge current is 10A with a large size heat-sink and sufficient airflow using a fan. This motor driver can be used for multiple applications including e-bikes, battery-powered tools, electric power steering, wheelchairs, or any other application, where a BLDC motor is utilized

15V to 60V – Three-Phase Brushless DC Motor Pre-Driver – [Link]

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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