Digital Control

Target Devices/Platforms:
• MC56F8013 Hybrid Controller
• MC56F8013 Evaluation Board
• Brushless DC Motor
Applications Usage:
• Compressors
• Fans
• Pumps
• Washing Machines
• Automotive Drives
• Industrial Drives
• Air conditioning units
• Appliances
Application Features:
• 3-phase Brushless DC motor sensorless drive
• Designed to fit into fan, pump and compressor applications
• Using MC56F8013 32MIPS hybrid controller
• Available for two power stages and two motors
• Input power supply voltage +12Vdc for power stages
• Control technique incorporates:
o Sensorless, trapezodial control of 3-phase Brushless DC motor with Back-EMF
sensing
o Using A / D converter Zero Cross sensing for sensorless control
o Speed & current closed loop with PI controller
• Speed Range 200 – 2000 and 500 – 5000 RPM (according to the motor used)
• Manual interface (Run / Stop switch, Up / Down pushbuttons)
• FreeMASTER interface for monitoring, control and tuning
• Fault protection (DC-Bus over-current, DC-Bus under-voltage, DC-Bus overvoltage)
• Automatic calibration of phase Back-EMF measurements
• Easy to tune for different power stages and motors
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BLDC Sensorless Drive – MC56F8013
TM