RDDSP56F8BLDCAZC: 3-Phase BLDC w/Sensorless Back-EMF ADC Zero Crossing Sensor for 56F80X or 56F8300

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• Overview
• Features
• Block Diagram
• Design Resources

Overview

This reference design describes the design of a 3-phase sensorless brushless DC (BLDC) motor control with back-EMF (electromotive force) zero-crossing sensing using an AD converter for the NXP® 56F80X and 56F83XX Digital Signal Controller (DSCs) dedicated for motor control applications.

• It can also be adapted to Our 56F81XX Digital Signal Controllers
• The system is designed as a motor drive for three-phase BLDC motors and is targeted for applications in both industrial and appliance fields (e.g. compressors, air conditioning units, pumps or simple industrial drives)
• The reference design incorporates both hardware and software parts of the system including hardware schematic

Features

• BLDC sensorless motor
• 115 or 230V AC Supply
• Targeted for 56F80x, 56F83XX, and 56F81XX Digital Signal Controllers
• Running on 3-phase BLDC Motor EVM at 12V, 3-Phase BLDC Low-Voltage Power Stage
• Speed control loop
• Motor mode in both direction of rotation
• Manual interface (RUN/STOP switch, UP/DOWN push buttons control, LED indication)
• Overvoltage, undervoltage, overcurrent and overheating fault protection
• PC remote control interface (speed set-up)
• FreeMASTER software remote monitor

Block Diagram

Design Resources