Project Overview

This project implements a 3-phase BLDC motor controller using Hall sensor-based 6-step commutation with PWM speed control. The system uses a PIC18F46K22 microcontroller and IR2101 gate drivers for driving the MOSFET bridge.

Features
* 3-phase BLDC control using 6-step commutation
* Speed control using analog potentiometer (ADC) with PWM
* Direction control with REVERSE button
* Start/Stop functionality
* LED indicators for direction status
* Open Hardware under CERN OHL v2 license

Hardware
Microcontroller: PIC18F46K22
Gate Driver: IR2101
MOSFETs: IRF540N or IRFZ44N
Sensors: Hall sensors for rotor position
PCB: 4-layer (2 signal, 2 GND planes)
Simulation: Proteus for pre-validation
CAD: Altium Designer for schematic and layout


Firmware
Developed in CCS C for the PIC18F46K22.
Uses interrupts for Hall sensor capture and commutation lookup table.
ADC reads potenti